SU1609892A1 - Device for trenchless pipe laying in grounds - Google Patents

Abstract

The invention relates to mining and construction and can be used in trenchless laying of pipelines in soils by the method of forcing. The purpose of the invention is to reduce the cost of work by increasing the accuracy of laying thin-walled pipelines. On frame 1, hydraulic jacks 2 are connected via lugs 3 to a pressing device in the form of pipe 4 and band 5. Section 4 has a cutout in accordance with the ratios 2H / D ₁ ≥1, where H is the depth of cutout

D ₁ - the outer diameter of the nozzle, and 0,3Λ / L * 980,9, where L is the length of the notch

L is the length of the pressing device. The pipe 3 is made in accordance with the ratio of 1.04Δ ₁ / D ₂ 1,01, where D ₂ - the outer diameter of the pipeline. Band 5 is made in accordance with the ratio of 1.05 * 98 D ₃ / D ₄ * 981.01, where D ₃ is the outer diameter of the band 5

D ₄ is the internal diameter of the band 5 and is connected to the pipe 4 by means of a detachable connection. Winch 10 is located in cutout 6. When jacks 2 are turned on, pipe 9 is crushed into an array. The soil from the pipeline is removed by means of the winch 10. Performing the elements of the device in accordance with the indicated ratios improves the accuracy of the laying and saves the cost of correcting the route. 1 il.

Description

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The invention relates to mining and construction and can be used in trenchless laying of pipelines in soils by the method of forcing. The purpose of the invention is to reduce the cost of work due to the accuracy of laying thin-walled pipelines.

The drawing shows the device for

trenchless laying of pipelines.

The device comprises a frame 1 with power jacks 2 placed on it, which interact with a pressure device through lugs 3 diametrically mounted on its side surface connected to the rods of the jacks 2,

The pressure device is made in the form of a pipe A, the outer diameter of which D is 1.01-1.04 in diameter of the laid pipeline D ,, connected by means of a detachable connection in the head with the band 5, made in accordance with the dependence

I

D3 D4

1.05 nd 1.01,

where D} D, the outer diameter of the bandage;

the inner diameter of the brace, Tail part of the pressure nozzle 4 has a notch 6 to the rear end, the length of which 1 corresponds to

0.3: 0.9, where L J-I

length of the nazkim

adaptations.

The stop plate 7 serves to receive the force of the pipeline pushing through. A section of the laid pipeline 9 is placed on the guide frame 8.

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A double-drum scraper winch 10 for moving the soil transporting device is located in a cutout 6 at the cut end of the nozzle 4.

The installation works as follows .50

In the working trench, a thrust plate is mounted, which, perceiving the pushing force, transfers them to the rock wall of the trench. Adjacent to the support plate 7, install the jacks 2 located on the frame 1 and connected to the pressure nozzle 4 by means of the eyes 3. The latter ensure the transfer of forces to the horizon

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25

thirty

35

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the flat plane passing through the axis of the nozzle 4,

Then, a section of the pipeline being laid is lowered onto the bed 8, which is laid on the bottom of the pit. yes 9 (for example, 6 m long). The hydraulic jacks 2, through the banding 5 of the pushing device, act on the end of the laid pipeline 9, and the contact is made along the entire perimeter of the contacting surfaces.

The development and transportation of the soil from the bottom is carried out using a double-drum scraper winch 10, with the developed Ground being transported from the laid pipeline 9 to the surface through the notch 6 in the branch pipe 4, I

After the pipeline 9 is pressed through the stroke of the rods of the hydraulic jacks 2 (for example, 6 m), they are returned to their original position, and the next segment of the laid pipeline is lowered onto the guiding frame 8, and the whole cycle is repeated.

Claims (1)

Formula of gain A device for trenchless laying of pipelines in soils, including a pushing device in the form of a cut-out nozzle and a bandage connected with the nozzle for placement on the butt of the laid pipe, power hydraulic jacks connected to the nozzle, and a winch for moving the soil transporting device, characterized by in order to reduce the cost of work by increasing the accuracy of laying thin-walled pipelines, the nozzle is made with eyelets fixed on its side surface for interacting with si ovymi hydraulic jacks and transfer force the latter in the horizontal plane passing through the longitudinal axis of symmetry of the nozzle, the cutout is formed in the pipe end to .1oslednego in accordance with the ratios 2h 57  L- 1, where h is the depth of the notch ,. t Di is the outer diameter of the nozzle, and  0.9, where 1 is the notch length, L is the length of the pressing tool. This socket is made in accordance with, 5 - 1609892 With a ratio of 1.04 2-1 1.01, 3 the outer diameter of the bandage, D Dj is the inner diameter of the bandage, and is connected . where Dg is the outer diameter of the pipe with a socket by means of detachable Yes, and the bandage is made in accordance. connections, while the winch is placed JJ in the cut-out at the cut end of a pipe with a ratio of l, 1.01, the tech.