CN203658603U - Comprehensive advanced geological detection system carried by tunnel boring machine - Google Patents

Abstract

The utility model discloses a comprehensive advanced geological detection system carried by a tunnel boring machine, which comprises a multifunctional joint host, an excitation polarization detection device, a seismic wave detection device, an integrated wiring device, and a drilling geological radar detection device; the multifunctional The combined host includes an excitation source control module and a parallel data acquisition module; the excitation source control module outputs trigger signals to the three detection devices respectively, and the three detection devices output measurement data and feedback signals through the parallel data acquisition module; the detection system It greatly improves the automation and detection speed of the detection equipment on the tunnel boring machine, and makes it possible to carry various detection equipment on the tunnel boring machine.

Description

Comprehensive Advanced Geological Detection System Equipped with Tunnel Boring Machine

technical field

The utility model relates to a comprehensive advanced geological detection system mounted on a tunnel boring machine.

Background technique

In the process of tunnel (cave) construction, it is internationally recognized that the construction method of tunnel boring machine has advantages unmatched by drilling and blasting construction methods such as "fast excavation speed, small construction disturbance, high hole quality, high comprehensive economic and social benefits, and safe and civilized construction". Significant advantage. At present, 30% to 40% of the excavated tunnels in the world are completed by tunnel boring machines. The number of tunnels excavated by tunnel boring machines exceeds 1,000, with a cumulative length of more than 5,000 kilometers. ) must be constructed with tunnel boring machines. At present, China has become the country with the largest scale and most difficult construction of tunnels (holes) in the world, and the tunnel boring machine construction method is the inevitable trend and development direction of tunnel (hole) construction in China.

The tunnel boring machine construction method has poor adaptability to geological conditions such as large stratum changes and unfavorable geological development. Because the existing advance forecasting instruments and technologies during the tunnel construction period cannot detect and pre-treat unfavorable geological conditions in advance, the tunnel boring machine encounters problems during construction. The risk of geological disasters such as water and mud inrush, landslide and large deformation is higher, which can easily lead to major accidents such as roadheader jamming, damage, scrapping and even casualties. Therefore, it is an urgent need for the safety of roadheader construction tunnels to carry out technical research and equipment development for quantitative and advanced forecasting of unfavorable geology in front of the tunnel face in the complex environment of roadheader construction.

For advanced geological prediction technology and detection devices, tunnel boring machine construction is fundamentally different from drill-and-blast method construction: ① Tunnel boring machine is a giant, occupying most of the space behind the tunnel face, and cannot The wall layout commonly used excitation shot point and receiving system for seismic wave advance prediction makes it impossible to apply seismic advanced prediction technologies such as TSP (Tunnel Seismic Prediction, Amberg Measurement Technology Company of Switzerland) and TRT (True Reflection Tomography, NSA Engineering Company of the United States);② There are a large number of metal components and power supply cables in the tunnel boring machine, which will generate huge electromagnetic interference, resulting in unsatisfactory detection results of ground radar method and transient electromagnetic method; ③During the construction of the tunnel boring machine, there are about two hours of maintenance every day At this time, the cutter head of the tunnel boring machine retreats 1-2m. This is the only link that can be used for advanced geological prediction, but its space is narrow and the time is short. Generally speaking, the advanced geological prediction in the tunnel boring machine construction environment faces the problems of "narrow observation space, complex electromagnetic environment, and short detection time".

At present, there are mainly the following types of technologies and instruments used for advanced geological prediction of tunnel boring machine construction in the world: ①Drilling with advanced drilling rig equipped with tunnel boring machine, the disadvantage is that it can only reveal the geological conditions around the borehole , cannot reflect the geological conditions in the entire range in front of the working face, and it is easy to miss bad geology, resulting in false positives, false positives, and hidden dangers of disasters; company) system, but the BEAM observation method only arranges a single measuring electrode on the face of the face, which is a single-point focusing type. It can only qualitatively judge whether there is water-containing body within 20m in front of the face of the face, and cannot implement abnormal objects in front of the face. Three-dimensional imaging and precise positioning, not to mention the estimation and prediction of water volume, have not been recognized and promoted; ③Using the seismic reflection method ISIS (Integrated Seismic Imaging System, German GFZ company) system, from the perspective of ISIS observation methods, using the traditional The VSP (Vertical Seismic Profiling) method can detect large-scale geological anomalies such as faults, but it cannot identify water-bearing bodies, and how to remove the vibration interference of tunnel boring machine construction is a difficult problem. ④ Seismic soft soil detection SSP (Sonic Softground Probing, Herrenknecht, Germany) system has the disadvantage that it can only be used for boulder detection in soft soil, and cannot be applied to all adverse geological predictions. Furthermore, the document "HSP Acoustic Reflection Method for Advanced Geological Prediction in TBM Construction", the patent "A device and method for advanced geological prediction using vibration signals in the construction of TBM method" and the patent "Advance Detection of TBM Construction Tunnel with Three-dimensional Induced Polarization Method" Device System and Method” respectively mentions the technical scheme of carrying acoustic wave, seismic wave and induced polarization detection devices on the tunnel boring machine for advanced geological detection. make accurate forecasts.

In view of the complex environment of tunnel boring machine construction, in order to detect faults, broken rock mass, karst and other unfavorable geological bodies in front of the excavation face, and to quantitatively detect the location and amount of groundwater occurrence, it is not possible to rely solely on a certain geophysical method. Through existing technical research and experience analysis, we believe that the following three geophysical detection methods need to be selected for comprehensive detection in order to reduce multiple solutions and improve detection results.

(1) Advanced seismic wave detection technology: This method has a relatively long detection distance (greater than 100 meters), and has a good effect on detecting potential water-bearing structures such as faults, karst caves, and underground rivers;

(2) Advanced detection technology of induced polarization method: We have found that this method has a good effect on quantitative forecasting of water volume and spatial position of water-bearing bodies;

(3) Advanced detection technology of borehole geological radar method: this method drills holes in the tunnel and delivers the borehole radar antenna to the borehole for detection. The borehole geological radar has high resolution and small detection radius, which is suitable for Refined exploration of the geological conditions in front of the construction face of the tunnel boring machine.

Generally speaking, the development of advance prediction technology and instruments for poor geological conditions of tunnel boring machine construction is still in its infancy, and its main problems are as follows:

(1) Since the observation space in the construction environment of the tunnel boring machine is very narrow, only the space of 1-2 meters between the cutterhead and the tunnel face can be used during maintenance. How to use this detection technology such as seismic method, electrical method and electromagnetic method Effective observation in space is a difficult problem;

(2) Since the tunnel boring machine is a complex mechanical system, the requirements for the integration and automation of advanced detection equipment are relatively high, and it is necessary to solve the problems of carrying and automation of advanced detection equipment;

(3) Since the tunnel boring machine needs to rotate the cutter head to break rock during excavation, how to prevent the communication between the advanced detection instrument and the excitation/acquisition device arranged on the cutter head, and the electro-hydraulic supply pipeline when the cutter head is rotating , how to achieve good wiring is a difficult problem.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the above-mentioned prior art and provide a comprehensive advanced geological detection system carried by a tunnel boring machine. In this method, the multi-functional host computer is used as the control center to control the work and operation of the comprehensive advanced geological prediction system; holes are drilled on the cutter head of the tunnel boring machine and the excitation polarization/seismic wave detection device is installed, and the drilling machine is installed above the tunnel boring machine. Hole ground radar detection device.

In order to achieve the above object, the utility model adopts the following technical solutions:

The comprehensive advanced geological detection system carried by the tunnel boring machine includes a multi-functional combined main engine, an induced polarization detection device and a seismic wave detection device on the cutter head, and an integrated wiring device for providing electro-hydraulic control signals to the detection device in the cutter head 1. Geological radar detection device for oblique drilling above the tunnel boring machine.

The multi-function host controls the trigger module to output trigger signals to the three detection devices respectively through the excitation source control module, and the three detection devices respectively send measurement data and feedback signals through the parallel data acquisition module.

The induced polarization detection device and the seismic wave detection device are arranged on the cutter head of the tunnel boring machine according to certain rules, which can take into account both the detection accuracy of the detection instrument and the rock-breaking efficiency of the cutter head. A plurality of entrance and exit holes for induced polarization detection devices and seismic wave detection devices are reserved on the cutterhead, among which the entrance and exit holes for excited polarization detection devices are distributed in the shape of "m", and the entrance and exit holes for seismic wave detection devices are distributed in a "three" shape.

The induced polarization detection device and the seismic wave detection device are placed in the cutter head, and a hatch is provided outside the access hole of the detection device on the cutter head, which can prevent the debris generated when the tunnel boring machine breaks rocks and advances from blocking the access hole. When starting the detection, first open the protective hatch of the entrance and exit hole. The detection device extends a certain length from the entrance and exit hole through the telescopic rod and fits closely with the tunnel face. When the detection is completed, the detection device is completely retracted into the entrance and exit hole through the telescopic rod and Close the protective hatch.

The excited polarization detection device and/or the seismic wave detection device both include a probe, a telescopic rod, a hydraulic system, a detection device body, a torque sensor, a high-pressure water delivery channel, a rock coupling material delivery pipeline, and an elastic ferrule; the hydraulic system, The detection device body, the telescopic rod and the probe are fixedly connected in turn, and the telescopic rod is equipped with a torque sensor; the side of the detection device body or the telescopic rod is also provided with an elastic ferrule that can lock the telescopic rod, thereby preventing the probe and the telescopic rod from Axial displacement leads to detection failure, which is especially important for seismic wave detection. The high-pressure water delivery pipeline and the rock-coupling material delivery pipeline can spray high-pressure water to clean the face and the probe to ensure that the probe and the face can be tightly bonded; the rock-coupling material can be transported between the face and the probe to ensure that the probe Good coupling with the palm face.

The integrated wiring device includes: a slip ring mover body, an outer slip ring stator body, a conductive slip ring, an inner slip ring stator body, a hydraulic oil rotary joint and a fixing bracket. The integrated wiring device is located at the connection between the tunnel boring machine cutter head and the tunnel boring machine body. The slip ring mover body of the power supply device is fixedly connected to the cutter head, the outer slip ring stator body is fixed to the tunnel boring machine body, and the inner slip ring The stator body is fixedly installed on the outer slip ring stator body, and the hydraulic oil rotary joint is connected to the oil channel hole at the rear end of the slip ring mover body. When the cutter head rotates relative to the main body of the tunnel boring machine, the electrical control signal is transmitted to the detection device in the cutter head through the conductive slip ring at the outer ring of the device, and the hydraulic oil required by the hydraulic telescopic rod of the detection device passes through the center of the device The hydraulic oil swivel joint at is transmitted to the hydraulic system in the cutterhead. This device effectively solves the problem that when the cutter head rotates relative to the main body of the tunnel boring machine, the electrical control cables and hydraulic oil pipes between the detection device in the cutter head and the multi-functional combined host are twisted and entangled, causing system damage and failure to work. The installation space required by the device is small, and the electrical and hydraulic oil passage performance is reliable.

The borehole geological radar detection device is connected to the shell of the tunnel boring machine through a spherical joint, and the vertical and horizontal angle adjustment system is used to actively adjust the angle between the telescopic rod of the borehole geological radar antenna and the axis of the tunnel boring machine, and the drill can be used flexibly. Hole ground radar detection device. Both the advanced fast drilling rig and the drilling georadar antenna telescopic pole are installed on the same equipment base, which can be switched quickly and automatically to work alternately. A force/torque sensor is installed on the telescopic rod of the radar antenna. When the sleeve is deformed or there is a foreign object that prevents the telescopic rod of the radar antenna from being extended or retracted, the operator can be warned in time and the operation is terminated to prevent damage to the radar antenna.

Borehole geological radar detection device, including equipment inlet and outlet pipes, spherical joints, eccentric pipe drill bits, drilling geological radar antennas, mounting device brackets, advanced fast drilling rigs, drilling geological radar antenna telescopic rods, vertical angle adjustment guide rails, and horizontal angles Adjust guide rail, motor and gear transmission system, equipment base, base moving guide rail and base moving guide wheel. The drill bit of the advanced fast drilling rig and the borehole geological radar antenna enter and exit through the equipment inlet and outlet pipes. The borehole geological radar detection device is connected with the casing of the tunnel boring machine through a spherical joint. The vertical and horizontal angle adjustment guide rails and the motor and gear transmission system can be actively By adjusting the angle between the eccentric heel tube bit or the telescopic pole of the borehole georadar antenna and the axis of the tunnel boring machine, the borehole georadar detection device can be used flexibly.

The telescopic rods of the advanced fast drilling rig and the drilling geological radar antenna are installed on the same equipment base, and the guide wheels are used to move horizontally along the guide rail to align the corresponding equipment with the equipment entering and exiting the pipeline, which can realize the automatic switching and alternation of the advanced fast drilling rig and the drilling geological radar antenna Work. Among them, the advanced fast drilling rig uses an eccentric follow-through drill bit, which can be drilled into the casing at one time while drilling, so as to protect the drilling radar antenna, and the drill bit can be pulled out from the casing by proper reversal; The radar antenna is automatically delivered via a multi-stage hydraulic telescoping mast.

Borehole georadar antenna telescopic rod, the hydraulic transmission system provides power for the multi-stage hydraulic telescopic rod, and a force/torque sensor is installed at both ends of the multi-stage hydraulic telescopic rod, which can detect the borehole georadar antenna and the borehole georadar The force/torque situation of the hydraulic telescopic pole of the antenna, the streamlined transparent protective cover is used to protect the camera and lighting device installed on the head of the radar antenna, the joint use of the camera and the force/torque sensor can understand the situation in the borehole in real time When deformation or foreign matter causes the radar antenna telescopic rod to fail to extend or retract, the operator will be warned in time and the operation will be terminated to prevent damage to the radar antenna.

The utility model has the following beneficial effects:

(1) The utility model proposes a device for carrying three advanced geological detection instruments on the tunnel boring machine for the tunnel boring machine, mainly including excitation polarization detection device, seismic wave detection device and borehole geological radar detection device, which can be used in tunnels The tunnel boring machine works intermittently and quickly conducts advanced geological detection, which greatly improves the efficiency and accuracy of the tunnel boring machine's advanced geological detection.

(2) The utility model proposes an arrangement method of excitation polarization and seismic wave detection units on the cutter head, so that the modified cutter head does not affect the excavation operation, and can also ensure the normal operation of various detection devices. The telescopic rods of the three detection units are all equipped with force/moment sensors to form a state feedback system, which can ensure that the probe is in close contact with the palm surface without damaging the detection and telescopic rods; Water delivery pipes and rock-coupling material delivery pipes can ensure tight bonding and good coupling between the probe and the face.

(3) The utility model is equipped with an integrated wiring device between the cutter head and the main body of the tunnel boring machine. When the cutter head rotates relative to the main body of the tunnel boring machine, the electro-hydraulic control signal can be transmitted to the cutter head through the integrated wiring device for detection. And in the telescopic system, it effectively solves the problem that the detection device in the cutter head is twisted and entangled with the electric control cable and hydraulic oil pipe of the multi-functional combined host, causing the system to be damaged and unable to work, and the installation space required by the device is small, and the electrical and The performance of hydraulic oil is reliable.

(4) The drilling geological radar detection device used in this utility model is connected with the casing of the tunnel boring machine through a spherical joint, and uses a vertical and horizontal angle adjustment system, which can actively adjust the eccentric follower drill or the drilling radar antenna telescopic rod and the tunnel The included angle of the axis of the roadheader enables the flexible use of drilling ground radar detection equipment, and the advanced fast drilling machine and the radar antenna telescopic rod are installed on the same equipment base, which can realize the rapid and automatic switching and alternation of the leading fast drilling machine and the drilling ground radar Work.

Description of drawings

Figure 1 is the overall cross-sectional view of the comprehensive advanced geological detection system carried by the tunnel boring machine;

Figure 2 is a structural diagram of the comprehensive advanced geological detection system;

Figure 3 is a structural diagram of a multi-function host;

Figure 4 is a schematic diagram of the comprehensive arrangement of advanced geological detection devices on the cutter head of the tunnel boring machine;

Fig. 5 is a cross-sectional view of the detection device in the cutter head of the tunnel boring machine;

Fig. 6 is a sectional view of the integrated wiring device;

Fig. 7 is a schematic diagram of a borehole geological radar detection device;

Fig. 8 is a schematic diagram of the telescopic pole of the borehole geological radar antenna.

In the figure: 1. Borehole georadar antenna, 2. Borehole georadar antenna telescopic rod, 3. Borehole georadar detection device, 4. Multi-function combined host, 5. Excited polarization detection device, 6. Tunnel palm Subsurface, 7. Cutterhead, 8. Integrated wiring device, 9. Inlet and outlet hole of induced polarization detection device, 10. Inlet and outlet hole of seismic wave detection device, 11. Induced polarization/seismic wave probe, 12. High-pressure water transmission pipeline, 13. Hydraulic cylinder, 14. Expansion rod of detection device, 15. Rock coupling material delivery pipe, 16. Hydraulic elastic ferrule, 17. Detection device body, 18. Force/torque sensor, 19. Slip ring mover body, 20. Outer slide Ring stator body, 21. Conductive slip ring, 22. Inner slip ring stator body, 23. Hydraulic oil rotary joint, 24. Tunnel boring machine body, 25. Equipment inlet and outlet pipes, 26. Ball joint, 27. Eccentric follower drill bit, 28. Carrying device bracket, 29. Advanced fast drilling rig, 30. Hydraulic transmission system, 31. Vertical angle adjustment guide rail, 32. Horizontal angle adjustment guide rail, 33. Motor and gear transmission system, 34. Equipment base, 35. Guide rail, 36. Guide wheel, 37. Transparent protective photo, 38. Camera and lighting device, 39. Force/torque sensor, 40. Excitation polarization detection electrode, 41. Seismic wave detection geophone, 42. Seismic wave detection shock exciter, 43. Drill Hole geological radar, 44. Multi-channel adjustable large current constant current power supply device, 45. Excited polarization multi-channel measurement device, 46. Seismic wave detection shock exciter excitation device, 47. Seismic wave detection geophone multi-channel measurement device, 48. Radar Electromagnetic wave transmitting device, 49. Radar electromagnetic wave receiving and collecting device, 50. Power supply control module, 51. Excitation measurement control module, 52. Excitation control module, 53. Seismic wave measurement control module, 54. Radar electromagnetic wave generation control module, 55. Radar Electromagnetic wave receiving control module, 56. Excitation source control module, 58. Parallel data acquisition module, 59. Seismic wave detection device, 61. Hydraulic control signal, 62. Electrical control signal, 63. Measurement data and feedback signal, 64. Tunnel boring machine shell.

Detailed ways

The utility model is further elaborated below through specific examples and accompanying drawings. It should be pointed out that what is disclosed below is only a preferred embodiment of the utility model, and certainly cannot limit the scope of rights of the utility model with this , On the premise of not departing from the principle of the utility model, those skilled in the art can also make some improvements and modifications, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Figure 1 is an overall sectional view of the comprehensive advanced geological detection system carried by the tunnel boring machine. The comprehensive advanced geological detection system carried by the tunnel boring machine mainly includes four parts, which are the multi-functional joint host 4, the detection device on the cutter head 7, An integrated wiring device 8 for providing electrical control signals and hydraulic oil to the detection device and an oblique drilling geological radar detection device 3 above the tunnel boring machine. Wherein the detection device installed on the cutterhead 7 mainly includes two kinds of detection devices, the excitation polarization detection device 5 and the seismic wave detection device 59, the borehole geological radar detection device 3 mainly includes the borehole geological radar antenna 1, the borehole geological radar antenna telescopic Rod 2 and advance fast rig etc. parts. The seismic wave detection geophone 41 is installed on the shell 64 of the tunnel boring machine, and is used for receiving the seismic wave returned on the tunnel wall.

Fig. 2 is a structural diagram of the comprehensive advanced geological detection system, the multi-function host 4 outputs hydraulic control signals 61 and electrical control signals 62 to the three detection devices, and the three detection devices output measurement data and feedback signals to the multi-function host 4 63. Wherein the excitation polarization detection device 5 and the seismic wave detection device 59 are all located in the tunnel boring machine cutter head 7, the advanced fast drilling machine 29, and the drilling geological radar antenna telescopic rod 2 are all located under the tunnel boring machine shell 64, and the multifunctional joint host 4 When communicating with the two detection devices located in the cutter head 7, the electro-hydraulic signal transfer must be performed through the integrated wiring device 8. The multi-function host 4, the integrated wiring device 8 and the three detection devices are all installed on the tunnel boring machine.

Fig. 3 is a structural diagram of a multi-function host. The multi-function host 4 takes a high-performance embedded system as the core, and mainly includes: a multi-channel adjustable high-current constant-current power supply device 44, an excited polarization multi-channel measurement device 45, Seismic wave detection shock exciter excitation device 46, seismic wave detection geophone multi-channel measurement device 47, radar electromagnetic wave emitting device 48, radar electromagnetic wave receiving and collecting device 49, power supply control module 50, induced electricity measurement control module 51, shock control module 52, seismic wave measurement Control module 53 , radar electromagnetic wave generation control module 54 , radar electromagnetic wave reception control module 55 , excitation source control module 56 and parallel data acquisition module 58 .

The excitation source control module 56 mainly realizes the communication and control among the power supply control module 50 , the shock control module 52 , and the radar electromagnetic wave emission control module 54 . The excitation source control module 56 sends control commands to the corresponding control modules, so as to control the power supply control module 50 , the shock control module 52 , and the radar electromagnetic wave emission control module 54 . The power supply control module 50 controls the multi-channel adjustable high-current constant-current power supply device 44 to provide a large cross-current output for exciting the polarization detection electrode 40; the shock control module 52 controls the excitation device 46 for the seismic wave detection shock exciter to provide excitation signals for the seismic wave detection shock exciter 42 The radar electromagnetic wave emission control module 54 controls the radar electromagnetic wave emission device 48 to provide electromagnetic wave emission signals for the borehole geological radar 43 .

After all the detection units are completed, the parallel data acquisition module 58 sends a parallel acquisition command to complete the high-speed acquisition function of the IP measurement control module 51 , the seismic wave measurement control module 53 and the radar electromagnetic wave reception control module 55 . Under the control of the IP measurement control module 51, the excitation polarization multi-channel measurement device 45 collects the data of the excitation polarization detection electrode 40; under the control of the seismic wave measurement control module 53, the seismic wave detection geophone multi-channel measurement device 47 collects seismic waves Detect the data of the geophone 41 ; under the control of the radar electromagnetic wave receiving control module 55 , the radar electromagnetic wave receiving and collecting device 49 collects the data of the borehole geological radar 43 .

Fig. 4 is a schematic diagram of the comprehensive arrangement of advanced geological detection devices on the tunnel boring machine cutter head. The excitation polarization detection device 5 and the seismic wave detection device 59 are arranged according to certain rules on the tunnel boring machine cutter head 7, which can take into account the detection of detection instruments Accuracy and rock-breaking efficiency of the cutter head, wherein the excitation polarization detection devices 5 are distributed in a "meter" shape, and the seismic wave detection devices 59 are distributed in a "three" shape. Of course, this is only one of the distribution methods. The excitation polarization detection devices 5 and The seismic wave detection devices 59 can also be distributed in various other ways. The specific embodiment is to reserve a plurality of excitation polarization detection device access holes 9 and seismic wave detection device access holes 10 on the cutter head 7, the detection devices are completely placed in the cutter head 7, and hatches are provided outside the access holes to prevent The debris generated when the tunnel boring machine breaks the rock blocks the entrance and exit holes. When starting to detect, first open the protective hatch of the entrance and exit holes. The detection device extends a certain length from the entrance and exit holes through the telescopic rod and fits closely with the tunnel face. When the detection is completed, the detection device is fully retracted in the access hole by the detection device telescopic rod 14 and closes the protection hatch.

Figure 5 is a cross-sectional view of the detection device in the tunnel boring machine cutter head, which mainly includes: excitation polarization/seismic wave probe 11, high-pressure water transmission pipeline 12, hydraulic cylinder 13, detection device telescopic rod 14, rock coupling material transmission pipeline 15, hydraulic elastic Ferrule 16, detection device body 17 and force/torque sensor 18. When the tunnel boring machine suspends the excavation operation and starts to detect, the entrance and exit hole protection hatch is opened, and the hydraulic oil injected into the hydraulic cylinder 13 will excite the polarization/seismic wave probe 11, the detection device telescopic rod 14 and the detection device body 17 to extend out of the entrance and exit hole. The telescopic rods of the two detection methods are all equipped with a force/torque sensor 18. When the probe touches the palm surface, the value of the force/torque sensor 18 increases with the extension of the detection device telescopic rod 14. When the value is greater than When a value is set according to the local geological conditions, the multi-function host 4 will immediately stop the action of the hydraulic system, so as to ensure that the probe is in close contact with the face without damaging the probe and the telescopic rod. The elastic ferrule 16 locks the telescopic rod 14 of the detection device, thereby preventing the axial displacement of the probe and the telescopic rod from causing detection failure, which is particularly important for seismic wave detection; after completing the detection task, unlock the hydraulic elastic ferrule 16, and the hydraulic cylinder In 13, hydraulic oil is pumped out and relevant devices are retracted into the inlet and outlet holes and the protection hatch is closed. The inside of the telescopic rod 14 of the detection device is hollow, and the inside is provided with a high-pressure water delivery pipeline 12 and a rock coupling material delivery pipeline 15. When the force/torque sensor 18 knows that the probe is just in contact with the face, the high-pressure water delivery pipeline 12 and the The matching pressurizing device sprays high-pressure water to the face of the face to clean the loose impurities on the surface of the face of the face and the probe to ensure that the probe and the face of the face can be tightly bonded; when the probe continues to extend until it is in close contact with the face of the face, The coupling material is delivered between the face and the probe through the rock coupling material conveying pipeline 15 and the supporting conveying device to ensure good coupling between the probe and the face.

6 is a sectional view of the integrated wiring device, which mainly includes: a slip ring mover body 19, an outer slip ring stator body 20, a conductive slip ring 21, an inner slip ring stator body 22, a hydraulic oil rotary joint 23 and a fixed bracket 24. The integrated wiring device 8 is located at the joint between the tunnel boring machine cutter head 7 and the tunnel boring machine body 24, the slip ring mover body 19 of the power supply device is connected to the cutter head 7 through screws, and the outer slip ring stator body 20 is connected to the cutter head 7 through screws. The tunnel boring machine body 24 is fixedly connected, the inner slip ring stator body 22 is fixed and installed on the outer slip ring stator body 20 by screws, and the hydraulic oil rotary joint 23 is connected to the oil passage at the rear end of the slip ring mover body 19 through the mandrel flange in the hole. When the cutter head 7 rotates relative to the main body of the tunnel boring machine, the control signal is transmitted to the detection device in the cutter head 7 through the conductive slip ring 21 at the outer ring of the device, and the hydraulic oil required by the telescopic rod 14 of the detection device passes through the The hydraulic oil swivel 23 at the center of the device is fed into the hydraulic system in the cutter head. This device effectively solves the problem that when the cutter head 7 rotates relative to the main body of the tunnel boring machine, the electrical control cables and hydraulic oil pipes between the detection device in the cutter head 7 and the multi-function main engine are twisted and entangled, causing the system to be damaged and unable to work. Moreover, the installation space required by the device is small, and the electrical and hydraulic oil passage performance is reliable.

Fig. 7 is the schematic diagram of borehole geological radar detection device 3, including equipment inlet and outlet pipeline 25, spherical joint 26, eccentric following pipe drill bit 27, borehole geological radar antenna 1, carrying device bracket 28, advanced fast drilling machine 29, borehole geological radar Telescoping rod 2, vertical angle adjustment guide rail 31, horizontal angle adjustment guide rail 32, motor and gear transmission system 33, equipment base 34, base moving guide rail 35 and base moving guide wheel 36. The drill bit 27 of the advanced fast drilling rig and the borehole geological radar antenna 1 enter and exit through the equipment inlet and outlet pipe 25, the borehole geological radar detection device 3 is connected with the tunnel boring machine shell 64 through the spherical joint 26, and the vertical and horizontal angles are used to adjust guide rails, motors and gears The transmission system can actively adjust the angle between the eccentric follower drill bit 27 or the drilling georadar antenna telescopic rod 2 and the axis of the tunnel boring machine, and the drilling georadar detection device 3 can be flexibly used. The advanced fast drilling rig 29 and the drilling geological radar antenna extension rod 2 are installed on the same equipment base 34, and the guide wheel 36 is used to move horizontally along the guide rail 35 to align the corresponding equipment with the equipment in and out of the pipeline, so that the advanced fast drilling rig 29 and the drilling geology The automatic switching of radar antenna 1 works alternately. Among them, the advanced fast drilling rig 29 uses the eccentric pipe drill bit 27, which can realize drilling into the casing at one time while drilling, so as to protect the drilling ground radar antenna 1, and the drill bit can be removed from the casing by properly reversing it. The radar antenna 1 is automatically delivered through the multi-stage hydraulic telescopic rod 2. After the borehole georadar detection device access hole is reserved on the cutter head 7, the borehole georadar detection device 3 can also be installed on the cutter head 7 for forward detection.

Fig. 8 is a schematic diagram of the borehole geological radar antenna telescopic rod, wherein the hydraulic transmission system 30 provides power for the borehole geological radar antenna telescopic rod 2, and a force/torque sensor 39 is respectively installed at both ends of the borehole geological radar antenna telescopic rod 2 , can detect the force/moment situation that radar antenna 1 and hydraulic telescopic pole 2 are subjected to, use streamlined transparent protective cover 37 to protect camera and lighting device 38 installed on the head of radar antenna, use camera 38 and force/moment sensor 39 in combination Understand the situation in the borehole in real time, and when the deformation of the casing or foreign matter prevents the expansion or retraction of the borehole georadar antenna telescopic rod 2, it will promptly warn the operator and stop the operation to prevent damage to the borehole georadar antenna 1.

Claims (8)

1. The comprehensive advanced geological detection system carried by the tunnel boring machine is characterized in that it includes a multi-functional joint host, an induced polarization detection device and a seismic wave detection device on the cutter head, and is used to provide electro-hydraulic detection devices for the detection device in the cutter head. Integrated wiring device for control signals, geological radar detection device for oblique drilling above the tunnel boring machine; The multifunctional combined host includes an excitation source control module and a parallel data acquisition module; the excitation source control module outputs trigger signals to the three detection devices respectively, and the three detection devices send measurement data and feedback signals through the parallel data acquisition module respectively . 2. The comprehensive advanced geological detection system carried by the tunnel boring machine as claimed in claim 1, wherein a plurality of entrance and exit holes for excited polarization detection devices and entrance and exit holes for seismic wave detection devices are reserved on the cutter head, wherein the exciter poles The inlet and outlet holes of chemical detection devices are distributed in the shape of a "meter", and the inlet and outlet holes of seismic wave detection devices are distributed in a "three" shape. 3. The comprehensive advanced geological detection system carried by the tunnel boring machine as claimed in claim 1, wherein the excited polarization detection device and the seismic wave detection device are arranged in the cutter head, and the cutter head is provided with a device access hole, And a cabin door is provided outside the device access hole. 4. The comprehensive advanced geological detection system carried by the tunnel boring machine according to claim 1, wherein the excited polarization detection device and/or the seismic wave detection device all include a probe, a telescopic rod, a hydraulic system, and a detection device body , torque sensor, high-pressure water delivery channel, rock coupling material delivery pipeline, elastic ferrule; the hydraulic system, the detection device body, the telescopic rod and the probe are fixedly connected in sequence, and the telescopic rod is equipped with a torque sensor; the detection device body or the telescopic The side of the rod is also equipped with an elastic ferrule that can lock the telescopic rod; the high-pressure water delivery pipeline and the rock coupling material delivery pipeline spray high-pressure water to clean the face and the probe, and deliver the rock coupling material between the face and the probe. 5. The comprehensive advanced geological detection system carried by the tunnel boring machine according to claim 1, wherein the integrated wiring device includes: a slip ring mover body, an outer slip ring stator body, a conductive slip ring, an inner slip ring Ring stator body, hydraulic oil rotary joint and fixed bracket; the integrated wiring device is located at the connection between the tunnel boring machine cutter head and the tunnel boring machine body, the slip ring mover body of the power supply device is fixedly connected to the cutter head, and the outer slip ring stator The body is fixedly connected with the tunnel boring machine body, the inner slip ring stator body is fixedly installed on the outer slip ring stator body, and the hydraulic oil rotary joint is connected to the oil channel hole at the rear end of the slip ring mover body. 6. The comprehensive advanced geological detection system carried by the tunnel boring machine as claimed in claim 1, wherein the geological radar detection device for drilling includes equipment inlet and outlet pipes, spherical joints, eccentric follow pipe drill bits, and geological radar for drilling Antenna, carrying device bracket, advanced fast drilling rig, drilling geological radar antenna telescopic rod, vertical angle adjustment guide rail, horizontal angle adjustment guide rail, motor and gear transmission system, equipment base, base moving guide rail and base moving guide wheel; advanced fast drilling rig The drill bit and the borehole geological radar antenna enter and exit through the equipment inlet and outlet pipes. The advanced fast drilling rig and the borehole geological radar detection device are connected to the shell of the tunnel boring machine through a spherical joint. The included angle between the eccentric follow pipe bit or the telescopic rod of the drilling radar antenna and the axis of the tunnel boring machine. 7. The comprehensive advanced geological detection system carried by the tunnel boring machine as claimed in claim 6, wherein the drilling georadar antenna telescopic rod provides power for the multi-stage hydraulic telescopic rod through the hydraulic transmission system, and in the multi-stage A force/torque sensor is installed at both ends of the hydraulic telescopic rod to detect the force/torque of the borehole ground radar antenna and the borehole ground radar antenna hydraulic telescopic rod. 8. The comprehensive advanced geological detection system carried by the tunnel boring machine according to claim 6, wherein the drilling geological radar detection device also includes a streamlined transparent protective cover to protect the camera and lighting installed on the head of the radar antenna device.

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