CN118730042B - A ground subsidence early warning method based on air-ground collaboration - Google Patents
A ground subsidence early warning method based on air-ground collaboration Download PDFInfo
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- CN118730042B CN118730042B CN202411110741.5A CN202411110741A CN118730042B CN 118730042 B CN118730042 B CN 118730042B CN 202411110741 A CN202411110741 A CN 202411110741A CN 118730042 B CN118730042 B CN 118730042B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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Abstract
本发明公开了一种基于空天地协同的地面沉降预警方法，属于地面沉降测量技术领域，包括：步骤S1，地面测量：在地面设置若干撑杆，撑杆竖直设置，撑杆上端设置高度传感器，以边缘若干高度传感器连线构成的区域构成监控区域，通过监控高度传感器的测量值变化确定第一沉降区域和沉降距离；其中，第一沉降区域以发生变化的高度传感器为圆心，且第一沉降区域的半径和沉降距离成正比；步骤S2，天基测量：通过卫星遥感技术对沉降区域进行实时监测，通过分析卫星获取的地面沉降数据，得到第二沉降区域和沉降速率；步骤S3，无人机测量及预警：若第二沉降区域位于监控区域的边缘位置。该发明具备对复杂地区适应性较高，也更精准的优点。
The present invention discloses a ground subsidence early warning method based on air-ground-space collaboration, which belongs to the field of ground subsidence measurement technology, and includes: step S1, ground measurement: a plurality of poles are arranged on the ground, the poles are arranged vertically, a height sensor is arranged at the upper end of the pole, and the area formed by connecting the plurality of height sensors at the edge constitutes a monitoring area, and the first subsidence area and the subsidence distance are determined by monitoring the change of the measured value of the height sensor; wherein, the first subsidence area takes the height sensor that has changed as the center of the circle, and the radius of the first subsidence area is proportional to the subsidence distance; step S2, space-based measurement: the subsidence area is monitored in real time by satellite remote sensing technology, and the second subsidence area and the subsidence rate are obtained by analyzing the ground subsidence data obtained by the satellite; step S3, drone measurement and early warning: if the second subsidence area is located at the edge of the monitoring area. The invention has the advantages of high adaptability to complex areas and more accuracy.
Description
Technical Field
The invention belongs to the technical field of ground settlement measurement, and particularly relates to a ground settlement early warning method based on space-ground coordination.
Background
The ground subsidence early warning system is a mechanism for monitoring and predicting ground subsidence phenomenon, and aims to discover and warn possible ground subsidence risks in advance. The system generally comprises a ground settlement monitoring network, a data processing center and an early warning release platform. The monitoring network is composed of a series of ground subsidence monitoring points, and the monitoring points collect ground displacement data in real time or periodically by using high-precision instruments such as GPS, level, inclinometer and the like. The data processing center is responsible for collecting and analyzing the data and evaluating the trend and the speed of ground subsidence by combining geological, hydrologic and other information. And the early warning release platform releases early warning information of different levels according to the analysis result so as to take corresponding preventive measures and reduce the possible damage caused by ground subsidence. But the adaptability to complex areas is low and inaccurate. Therefore, a ground subsidence early warning method based on space-ground coordination is needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a ground subsidence early warning method based on space-ground coordination, which has the advantages of higher adaptability to complex areas and higher precision, and solves the problems of lower adaptability and inaccuracy in the complex areas in the prior art.
The invention discloses a ground subsidence early warning method based on space-earth coordination, which comprises the following steps:
the method comprises the following steps of S1, ground measurement, namely arranging a plurality of stay bars on the ground, wherein the stay bars are vertically arranged, the upper ends of the stay bars are provided with height sensors, a monitoring area is formed by connecting a plurality of height sensors at the edges, and a first sedimentation area and a sedimentation distance are determined by monitoring the measured value change of the height sensors, wherein the first sedimentation area takes the changed height sensors as circle centers, and the radius of the first sedimentation area is in direct proportion to the sedimentation distance;
S2, space-based measurement, namely monitoring the sedimentation area in real time by a satellite remote sensing technology, and obtaining a second sedimentation area and a sedimentation rate by analyzing ground sedimentation data acquired by satellites;
And S3, unmanned aerial vehicle measurement and early warning, namely if the second sedimentation area is positioned at the edge position of the monitoring area, further measuring and correcting the second sedimentation area by the unmanned aerial vehicle, and sending an early warning signal to a monitoring center.
As a preferred embodiment of the present invention, step S1 comprises the following sub-steps:
S11, installing a plurality of stay bars at selected positions on the ground, so that the stay bars are perpendicular to the ground;
step S12, sensor deployment, namely installing a height sensor at the upper end of each stay bar, wherein the height sensor can monitor and record the height change of the position of the height sensor in real time;
step S13, summarizing and analyzing the data, namely summarizing the measurement data of all the height sensors, and identifying a height change area by analyzing the data so as to determine a first sedimentation area;
S14, calculating a sedimentation distance, namely calculating a concrete value of the ground descent according to the change of the measured value of the height sensor;
And S15, determining the radius of the sedimentation area, namely determining the radius of the first sedimentation area by taking the height sensor with the height falling as the circle center according to the sedimentation distance, wherein the radius is in a proportional relation with the sedimentation distance.
As a preferred embodiment of the present invention, step S2 comprises the sub-steps of:
S21, monitoring the first sedimentation area in real time, wherein the first sedimentation area is monitored in real time by utilizing a satellite remote sensing technology;
step S22, collecting ground subsidence data, namely collecting ground subsidence data acquired by a satellite remote sensing technology, wherein the data comprise the range and the subsidence rate of a subsidence area;
and S23, analyzing the satellite remote sensing data to acquire the contour line position and the sedimentation rate of the second sedimentation area.
As a preferred embodiment of the present invention, step S3 comprises the following sub-steps:
Step S31, judging whether the second sedimentation area spans the monitoring edge or not, namely judging whether the contour line of the second sedimentation area crosses the edge of the monitoring area or not;
Step S32, amplifying and measuring a sedimentation area outside a monitoring area, namely amplifying a contour line of the second sedimentation area positioned outside the monitoring area by a preset multiple to obtain an amplified contour line if the second sedimentation area is intersected with the edge of the monitoring area, deploying an unmanned aerial vehicle to measure along the amplified contour line, and measuring an area inside the amplified contour line layer by layer;
step S33, comparing and analyzing the data measured by the unmanned aerial vehicle with the data collected before, so as to supplement sedimentation information outside the monitoring area;
and S34, confirming the final sedimentation area, namely confirming the final sedimentation area and the sedimentation distance according to the analysis result, and sending an early warning signal to a monitoring center.
Preferably, the method further comprises the step S4 of burying the vertical and/or horizontal flexible strip member at a preset depth below the ground, and monitoring deformation and settlement of soil layer below the ground by monitoring the bending shape of the flexible strip member.
In the preferred embodiment of the invention, step S5 is to combine satellite remote sensing data and unmanned aerial vehicle measurement results to perform multi-source data fusion analysis after confirming the first settlement area so as to improve the accuracy of early warning. And further determining the potential risk level of sedimentation by analyzing factors such as the form of the sedimentation area, the change trend of the sedimentation rate, geological conditions and the like.
And step S6, a differential early warning response strategy is formulated according to the potential risk level of early warning, an emergency response mechanism is started immediately for a high risk area, and monitoring frequency is enhanced for a low risk area, and sedimentation change is closely focused so as to adjust the early warning response strategy in time.
The support rod comprises a base, a through hole is formed in the middle of the base, two symmetrically-arranged arc holes are formed in the outer portion of the through hole, arc pieces are connected in the arc holes in a sliding mode, semicircular grooves are formed in the lower ends of the arc pieces, external threads are formed in the outer surfaces of the two semicircular grooves, a threaded sleeve is connected with the external threads, a pointed cone is fixedly connected to the lower end of the threaded sleeve, a connecting rod is fixedly connected to the inner portion of the threaded sleeve, an inserting ring is fixedly connected to the connecting rod, an inserting rod is inserted into the inserting ring and located at a non-axial position of the threaded sleeve, the inserting rod can be separated from the inserting ring, an arc rod is arranged at the upper end of the inserting rod, a handle is fixedly connected to the arc rod, an elastic extrusion piece is arranged on the lower side of the connecting rod, when the inserting rod is separated from the inserting ring, an inserting hole for installing a height sensor is fixedly connected to the lower side of the arc piece.
Preferably, the elastic pressing member includes a spring fixedly connected to the lower side of the connecting rod and a pressing piece fixedly connected to the lower side of the spring.
Compared with the prior art, the invention has the following beneficial effects:
First, a height sensor is installed on the ground in a ground measurement step (S1), and the ground is monitored in real time by using the height sensor. When the sensor detects that the ground height changes, the system can rapidly identify the sedimentation area and the sedimentation distance thereof. The ground direct measurement mode can accurately capture the tiny change of the ground, and is a foundation stone of an early warning system. And secondly, a space-based measurement step (S2) is used for carrying out large-scale and high-precision real-time monitoring on ground subsidence by utilizing a satellite remote sensing technology. Satellites can cover a wider area and their acquired data has a high degree of accuracy and continuity. By analyzing the data, the system can calculate the second sedimentation area and the sedimentation rate, and more comprehensive information support is provided for early warning. And finally, in the unmanned aerial vehicle measuring and early warning step (S3), when the second sedimentation area is found to be positioned at the edge of the monitoring area, further measuring and correcting are carried out through the unmanned aerial vehicle, and an early warning signal is sent to the monitoring center. The unmanned aerial vehicle has the characteristics of flexibility and rapidness, can rapidly arrive at the site to carry out accurate measurement, and the carried sensor can acquire more detailed ground information. The space-sky coordination mode not only improves the accuracy and timeliness of early warning, but also enhances the coping capacity of the system. The beneficial effects of the above are summarized, including high practicability and more accuracy for complex areas.
Drawings
FIG. 1 is a flow chart of a ground settlement pre-warning method based on space-ground coordination provided by the embodiment of the invention;
FIG. 2 is a block flow diagram of a ground survey provided by an embodiment of the present invention;
FIG. 3 is a block flow diagram of a space-based measurement provided by an embodiment of the present invention;
fig. 4 is a flow chart of unmanned aerial vehicle measurement and early warning provided by the embodiment of the invention;
fig. 5 is a schematic diagram of a monitoring area of a ground settlement early warning method based on space-earth coordination according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a first sedimentation area of a ground sedimentation early warning method based on space-earth coordination according to an embodiment of the present invention;
Fig. 7 is a schematic diagram of a second sedimentation area of a ground sedimentation early warning method based on space-earth coordination according to an embodiment of the present invention;
Fig. 8 is a schematic diagram of an enlarged outline of a ground settlement pre-warning method based on space-earth cooperation according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a final sedimentation area of a ground sedimentation early warning method based on space-earth coordination provided by an embodiment of the invention;
fig. 10 is a schematic perspective view of a stay bar according to an embodiment of the present invention;
FIG. 11 is an enlarged schematic view of the portion A of FIG. 10 according to an embodiment of the present invention;
FIG. 12 is a schematic top view of a brace provided by an embodiment of the invention;
FIG. 13 is a schematic cross-sectional view of portion B-B of FIG. 12, provided in accordance with an embodiment of the present invention;
FIG. 14 is an enlarged schematic view of the portion C of FIG. 13 according to an embodiment of the present invention;
FIG. 15 is an enlarged schematic view of the portion D of FIG. 13 according to an embodiment of the present invention;
fig. 16 is a schematic perspective view of a stay bar with a pointed cone omitted according to an embodiment of the present invention;
Fig. 17 is an enlarged schematic view of the portion E in fig. 16 according to an embodiment of the present invention.
In the figure, 1, a base, 2, a through hole, 3, an arc hole, 4, an arc piece, 5, a semicircular groove, 6, an external thread, 7, a screw sleeve, 8, a pointed cone, 9, a connecting rod, 10, an inserting ring, 11, an inserting rod, 12, an arc rod, 13, an elastic extrusion piece, 131, a spring, 132, a pressing piece, 14, an inserting hole, 15 and a mounting hole.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 17, the ground settlement early warning method based on space-ground cooperation provided by the embodiment of the invention comprises the following steps:
The ground measurement method comprises the steps of S1, setting a plurality of supporting rods on the ground, wherein the supporting rods are vertically arranged, the upper ends of the supporting rods are provided with height sensors, a monitoring area is formed by connecting a plurality of height sensors at the edges, a first sedimentation area and a sedimentation distance are determined through the change of measured values of the monitoring height sensors, the first sedimentation area takes the changed height sensors as circle centers, the radius of the first sedimentation area is in direct proportion to the sedimentation distance, and if the heights of part of the height sensors are reduced, and other height sensors are not reduced, the sedimentation area can be determined, and the sedimentation distance can be determined.
S2, space-based measurement, namely monitoring the sedimentation area in real time by a satellite remote sensing technology, and obtaining a second sedimentation area and a sedimentation rate by analyzing ground sedimentation data acquired by satellites;
And S3, unmanned aerial vehicle measurement and early warning, namely if the second sedimentation area is positioned at the edge position of the monitoring area, further measuring and correcting the second sedimentation area by the unmanned aerial vehicle, and sending an early warning signal to a monitoring center.
Through the arrangement, the working principle and the beneficial effects are as follows:
First, the method sets up the height sensor on the ground through the ground measuring step (S1), and monitors the ground in real time by using these sensors. When the sensor detects that the ground height changes, the system can rapidly identify the sedimentation area and the sedimentation distance thereof. The ground direct measurement mode can accurately capture the tiny change of the ground, and is a foundation stone of an early warning system.
And secondly, a space-based measurement step (S2) is used for carrying out large-scale and high-precision real-time monitoring on ground subsidence by utilizing a satellite remote sensing technology. Satellites can cover a wider area and their acquired data has a high degree of accuracy and continuity. By analyzing the data, the system can calculate the second sedimentation area and the sedimentation rate, and more comprehensive information support is provided for early warning. For example, after natural disasters such as earthquakes, floods and the like occur, satellite remote sensing technology can rapidly evaluate ground subsidence conditions of disaster areas, and provides important references for rescue and reconstruction work.
And finally, in the unmanned aerial vehicle measuring and early warning step (S3), when the second sedimentation area is found to be positioned at the edge of the monitoring area, further measuring and correcting are carried out through the unmanned aerial vehicle, and an early warning signal is sent to the monitoring center. The unmanned aerial vehicle has the characteristics of flexibility and rapidness, can rapidly arrive at the site to carry out accurate measurement, and the carried sensor can acquire more detailed ground information. The space-sky coordination mode not only improves the accuracy and timeliness of early warning, but also enhances the coping capacity of the system. For example, after a certain area finds out the ground subsidence sign, the unmanned aerial vehicle can quickly go to the site to confirm and measure, and the early warning information is transmitted to the monitoring center in real time, so that the relevant departments can take countermeasures in time.
Specifically, step S1 includes the following sub-steps:
S11, installing a plurality of stay bars at selected positions on the ground, so that the stay bars are perpendicular to the ground;
step S12, sensor deployment, namely installing a height sensor at the upper end of each stay bar, wherein the height sensor can monitor and record the height change of the position of the height sensor in real time;
step S13, summarizing and analyzing the data, namely summarizing the measurement data of all the height sensors, and identifying a height change area by analyzing the data so as to determine a first sedimentation area;
S14, calculating a sedimentation distance, namely calculating a concrete value of the ground descent according to the change of the measured value of the height sensor;
And S15, determining the radius of the sedimentation area, namely determining the radius of the first sedimentation area by taking the height sensor with the height falling as the circle center according to the sedimentation distance, wherein the radius is in a proportional relation with the sedimentation distance.
Specifically, step S2 includes the following sub-steps:
S21, monitoring the first sedimentation area in real time, wherein the first sedimentation area is monitored in real time by utilizing a satellite remote sensing technology;
step S22, collecting ground subsidence data, namely collecting ground subsidence data acquired by a satellite remote sensing technology, wherein the data comprise the range and the subsidence rate of a subsidence area;
and S23, analyzing the satellite remote sensing data to acquire the contour line position and the sedimentation rate of the second sedimentation area.
Specifically, step S3 includes the following substeps:
Step S31, judging whether the second sedimentation area spans the monitoring edge or not, namely judging whether the contour line of the second sedimentation area crosses the edge of the monitoring area or not;
Step S32, amplifying and measuring a sedimentation area outside a monitoring area, namely amplifying a contour line of the second sedimentation area positioned outside the monitoring area by a preset multiple to obtain an amplified contour line if the second sedimentation area is intersected with the edge of the monitoring area, deploying an unmanned aerial vehicle to measure along the amplified contour line, and measuring an area inside the amplified contour line layer by layer;
step S33, comparing and analyzing the data measured by the unmanned aerial vehicle with the data collected before, so as to supplement sedimentation information outside the monitoring area;
and S34, confirming the final sedimentation area, namely confirming the final sedimentation area and the sedimentation distance according to the analysis result, and sending an early warning signal to a monitoring center.
Further, the method also comprises the following steps:
and S4, burying a vertical and/or horizontal flexible strip member at a preset depth below the ground, and monitoring deformation and settlement of a soil layer below the ground by monitoring the bending shape of the flexible strip member.
This added step can provide direct monitoring of deformation of the subsurface soil layer, supplementing the lack of monitoring via ground level sensors and satellite remote sensing technology alone. Because ground subsidence is often accompanied by movement and deformation of the subsurface layers, the flexible strips are able to sense these changes, thereby providing more comprehensive and in-depth data for the subsidence warning system. This monitoring helps to find potential ground subsidence risk ahead of time, especially in those areas where surface changes are insignificant but subsurface deformations have occurred.
In addition, deformation and settlement of soil layers under the ground are monitored through the flexible strip pieces, so that accuracy and reliability of the early warning system can be improved. The change in the curved shape of the flexible strip can provide a more accurate measurement of the rate and pattern of sedimentation, helping to distinguish between different types of ground subsidence, such as uniform and non-uniform subsidence. This information is critical to the establishment of corresponding preventive measures and countermeasures, and can effectively reduce the potential harm of ground subsidence to infrastructure and the surrounding environment. Therefore, the addition of the monitoring step not only can enhance the function of the early warning system, but also can provide more scientific and effective decision support for the management and control of ground subsidence.
Further, in step S5, after confirming the first settlement area, the satellite remote sensing data and the unmanned aerial vehicle measurement result are combined to perform multi-source data fusion analysis so as to improve the early warning accuracy. And further determining the potential risk level of sedimentation by analyzing factors such as the form of the sedimentation area, the change trend of the sedimentation rate, geological conditions and the like.
And step S6, a differential early warning response strategy is formulated according to the potential risk level of early warning, an emergency response mechanism is started immediately for a high risk area, and monitoring frequency is enhanced for a low risk area, and sedimentation change is closely focused so as to adjust the early warning response strategy in time.
Specifically, the stay bar includes:
The novel screw rod type screw rod fixing device comprises a base 1, wherein a through hole 2 is formed in the middle of the base 1, two symmetrically arranged arc holes 3 are formed in the outer portion of the through hole 2, arc pieces 4 are connected in the arc holes 3 in a sliding mode, semicircular grooves 5 are formed in the lower ends of the arc pieces 4, external threads 6 are formed in the outer surfaces of the semicircular grooves 5, screw sleeves 7 are connected with the external threads 6, a pointed cone 8 is fixedly connected to the lower ends of the screw sleeves 7, connecting rods 9 are fixedly connected to the inside of the screw sleeves 7, inserting rings 10 are fixedly connected to the connecting rods 9, inserting rods 11 are inserted into the inserting rings 10 and located at non-axial positions of the screw sleeves 7, the inserting rods 11 can be separated from the inserting rings 10, arc rods 12 are arranged at the upper ends of the inserting rods 11, and handles are fixedly connected to the arc rods 12;
An elastic extrusion 13 is arranged on the lower side of the connecting rod 9, and when the inserted rod 11 is separated from the inserted ring 10, the elastic extrusion 13 is pressed on the lower side of the connecting rod 9;
the lower side of the arc-shaped piece 4 is provided with a jack 14, and the upper end of the arc-shaped piece 4 is fixedly connected with a mounting hole 15 for mounting a height sensor.
When the multifunctional flexible strip-shaped part is used, the lower end of the flexible strip-shaped part is connected to the connecting rod 9, the base 1 is horizontally installed at a monitoring point, then the arc-shaped piece 4, the threaded sleeve 7 and the pointed cone 8 are inserted into the ground, after reaching a preset position, the inserted rod 11 is rotated, the threaded sleeve 7 and the pointed cone 8 are rotated to be separated from the arc-shaped piece 4, then the inserted rod 11 is pulled out, the elastic extrusion piece 13 automatically compresses the lower end of the flexible strip-shaped part, the flexible strip-shaped part is prevented from being taken out when the inserted rod 11 is pulled out, then the arc-shaped piece 4 is pulled upwards, the flexible strip-shaped part is wrapped by soil, the burying of the flexible strip-shaped part can be completed, meanwhile, most of the arc-shaped piece 4 is pulled to the upper side of the base 1, and the arc-shaped piece 4 and the base 1 can be connected through the external inserted block into the jack 14, and the multifunctional flexible strip-shaped part can be used as a supporting rod for installing a height sensor.
Specifically, the elastic extrusion 13 includes a spring 131 and a pressing piece 132, the spring 131 is fixedly connected to the lower side of the connecting rod 9, and the pressing piece 132 is fixedly connected to the lower side of the spring 131.
The working principle of the invention is as follows:
and the ground measurement step is to arrange a height sensor on the ground, monitor the ground height change in real time, rapidly identify the sedimentation area and the sedimentation distance thereof, and accurately capture the ground tiny change.
And the space-based measurement step is to utilize satellite remote sensing technology to perform large-scale and high-precision ground subsidence real-time monitoring, analyze data to calculate a second subsidence area and subsidence rate, and provide comprehensive information support for early warning.
And the unmanned aerial vehicle measuring and early warning step, namely when the second settlement area is positioned at the edge of the monitoring area, measuring and correcting by using the unmanned aerial vehicle, sending an early warning signal to the monitoring center, and enabling the unmanned aerial vehicle to quickly arrive at the site for accurate measurement to acquire detailed ground information, so that the early warning accuracy and timeliness are improved, and the system response capability is enhanced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The ground subsidence early warning method based on the space-ground coordination is characterized by comprising the following steps of:
the method comprises the following steps of S1, ground measurement, namely arranging a plurality of stay bars on the ground, wherein the stay bars are vertically arranged, the upper ends of the stay bars are provided with height sensors, a monitoring area is formed by connecting a plurality of height sensors at the edges, and a first sedimentation area and a sedimentation distance are determined by monitoring the measured value change of the height sensors, wherein the first sedimentation area takes the changed height sensors as circle centers, and the radius of the first sedimentation area is in direct proportion to the sedimentation distance;
S2, space-based measurement, namely monitoring the sedimentation area in real time by a satellite remote sensing technology, and obtaining a second sedimentation area and a sedimentation rate by analyzing ground sedimentation data acquired by satellites;
Step S3, unmanned aerial vehicle measurement and early warning, namely if the second sedimentation area is positioned at the edge position of the monitoring area, further measuring and correcting the second sedimentation area by the unmanned aerial vehicle, and sending an early warning signal to a monitoring center;
Step S3 comprises the following sub-steps:
Step S31, judging whether the second sedimentation area spans the monitoring edge or not, namely judging whether the contour line of the second sedimentation area crosses the edge of the monitoring area or not;
Step S32, amplifying and measuring a sedimentation area outside a monitoring area, namely amplifying a contour line of the second sedimentation area positioned outside the monitoring area by a preset multiple to obtain an amplified contour line if the second sedimentation area is intersected with the edge of the monitoring area, deploying an unmanned aerial vehicle to measure along the amplified contour line, and measuring an area inside the amplified contour line layer by layer;
step S33, comparing and analyzing the data measured by the unmanned aerial vehicle with the data collected before, so as to supplement sedimentation information outside the monitoring area;
and S34, confirming the final sedimentation area, namely confirming the final sedimentation area and the sedimentation distance according to the analysis result, and sending an early warning signal to a monitoring center.
2. The ground settlement pre-warning method based on space-earth cooperation as claimed in claim 1, wherein the ground settlement pre-warning method is characterized by comprising the following steps of:
step S1 comprises the following sub-steps:
S11, installing a plurality of stay bars at selected positions on the ground, so that the stay bars are perpendicular to the ground;
step S12, sensor deployment, namely installing a height sensor at the upper end of each stay bar, wherein the height sensor can monitor and record the height change of the position of the height sensor in real time;
step S13, summarizing and analyzing the data, namely summarizing the measurement data of all the height sensors, and identifying a height change area by analyzing the data so as to determine a first sedimentation area;
S14, calculating a sedimentation distance, namely calculating a concrete value of the ground descent according to the change of the measured value of the height sensor;
And S15, determining the radius of the sedimentation area, namely determining the radius of the first sedimentation area by taking the height sensor with the height falling as the circle center according to the sedimentation distance, wherein the radius is in a proportional relation with the sedimentation distance.
3. The ground settlement pre-warning method based on space-earth cooperation as claimed in claim 1, wherein the ground settlement pre-warning method is characterized by comprising the following steps of:
Step S2 comprises the following sub-steps:
S21, monitoring the first sedimentation area in real time, wherein the first sedimentation area is monitored in real time by utilizing a satellite remote sensing technology;
step S22, collecting ground subsidence data, namely collecting ground subsidence data acquired by a satellite remote sensing technology, wherein the data comprise the range and the subsidence rate of a subsidence area;
and S23, analyzing the satellite remote sensing data to acquire the contour line position and the sedimentation rate of the second sedimentation area.
4. The ground settlement pre-warning method based on space-earth cooperation as claimed in claim 1, wherein the ground settlement pre-warning method is characterized by comprising the following steps of:
The method also comprises the following steps:
and S4, burying a vertical and/or horizontal flexible strip member at a preset depth below the ground, and monitoring deformation and settlement of a soil layer below the ground by monitoring the bending shape of the flexible strip member.
5. The ground settlement pre-warning method based on space-earth cooperation according to claim 4, wherein the ground settlement pre-warning method is characterized by comprising the following steps of:
S5, after confirming the first settlement area, combining satellite remote sensing data with unmanned aerial vehicle measurement results to perform multi-source data fusion analysis so as to improve early warning accuracy;
And step S6, according to potential risk levels of early warning, a differential early warning response strategy is formulated, an emergency response mechanism is started immediately for a high risk area, and monitoring frequency is enhanced for a low risk area.
6. The ground settlement pre-warning method based on space-earth cooperation according to claim 4, wherein the ground settlement pre-warning method is characterized by comprising the following steps of:
The stay bar includes:
Base (1), base (1) middle part is equipped with through-hole (2), the outside arc hole (3) that are equipped with two symmetries and set up of through-hole (2), all sliding connection has arc piece (4) in arc hole (3), arc piece (4) lower extreme all is equipped with semicircle groove (5), two external screw thread (6) have been seted up to the surface of semicircle groove (5), external screw thread (6) are connected with swivel nut (7), swivel nut (7) lower extreme fixedly connected with pointed cone (8), the novel screw sleeve is characterized in that a connecting rod (9) is fixedly connected inside the screw sleeve (7), an inserting ring (10) is fixedly connected to the connecting rod (9), an inserting rod (11) is inserted into the inserting ring (10), the inserting rod (11) is located at a non-axial position of the screw sleeve (7), the inserting rod (11) can be separated from the inserting ring (10), an arc-shaped rod (12) is arranged at the upper end of the inserting rod (11), and a handle is fixedly connected to the arc-shaped rod (12);
An elastic extrusion part (13) is arranged at the lower side of the connecting rod (9), and when the inserted rod (11) is separated from the inserted ring (10), the elastic extrusion part (13) is pressed at the lower side of the connecting rod (9);
The lower side of the arc-shaped piece (4) is provided with a jack (14), and the upper end of the arc-shaped piece (4) is fixedly connected with a mounting hole (15) for mounting the height sensor.
7. The ground settlement pre-warning method based on space-earth cooperation as claimed in claim 6, wherein the ground settlement pre-warning method is characterized by comprising the following steps:
The elastic extrusion piece (13) comprises a spring (131) and a pressing piece (132), the spring (131) is fixedly connected to the lower side of the connecting rod (9), and the pressing piece (132) is fixedly connected to the lower side of the spring (131).
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| CN108805368A (en) * | 2018-09-06 | 2018-11-13 | 天津珞雍空间信息研究院有限公司 | An Intelligent Atmospheric Environment Management System Based on Space-Space-Ground Integration |
| CN109099885A (en) * | 2018-08-14 | 2018-12-28 | 中冶建筑研究总院（深圳）有限公司 | Surface subsidence multi-source in urban area perceives Automatic monitoring systems and implementation method |
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| CN115116198B (en) * | 2022-06-16 | 2023-03-10 | 山东大学 | Air-space-ground integrated road subsidence monitoring method and system |
| CN115979212B (en) * | 2022-12-20 | 2025-10-03 | 国能神东煤炭集团有限责任公司 | Method, device and electronic equipment for monitoring surface subsidence in mining areas |
| CN116642457A (en) * | 2023-05-30 | 2023-08-25 | 中交二公局第四工程有限公司 | A shield surface subsidence monitoring device and method |
| CN117213443B (en) * | 2023-11-07 | 2024-03-19 | 江苏省地质调查研究院 | Construction and updating method of ground settlement monitoring network with integration of heaves, earth and depth |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109099885A (en) * | 2018-08-14 | 2018-12-28 | 中冶建筑研究总院（深圳）有限公司 | Surface subsidence multi-source in urban area perceives Automatic monitoring systems and implementation method |
| CN108805368A (en) * | 2018-09-06 | 2018-11-13 | 天津珞雍空间信息研究院有限公司 | An Intelligent Atmospheric Environment Management System Based on Space-Space-Ground Integration |
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