Pipe jacking construction structure penetrating through soft soil layer

Abstract

The utility model relates to the technical field of underground engineering and tunnel construction, and discloses a soft soil layer penetrating pipe jacking construction structure which comprises a soil layer, a working pit is formed in the upper surface of the soil layer, and a receiving pit is formed in the upper surface of the soil layer. According to the pipe-jacking construction structure capable of penetrating through the soft soil layer, the pipe-jacking main body, the reinforcing pipe pieces, the grouting holes, the sensor module and other components are arranged, the pipe-jacking main body is arranged in a working pit, the reinforcing pipe pieces are installed on the inner wall of the pipe-jacking main body, the grouting holes are formed in the inner walls of the corresponding reinforcing pipe pieces, and the grouting holes can penetrate through the pipe-jacking main body; the stability of a soft soil layer is remarkably improved and the collapse risk is reduced through the arrangement of a reinforcing pipe piece and a grouting hole, the accuracy of the jacking direction is improved and the construction error is reduced by installing a sensor module in a guide head and monitoring the jacking direction and the stratum state in real time, and through the arrangement of a first telescopic rod and a third telescopic rod, the construction efficiency is improved. And the crossing height of the pipeline can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of underground engineering and tunnel construction, in particular to a pipe jacking construction structure penetrating through soft soil layers. BACKGROUND

[0002] In urban underground engineering, the pipe jacking construction technology is a trenchless construction method, which is widely used in underground pipeline laying, tunnel construction and other fields. With the acceleration of urbanization, the utilization rate of underground space is continuously improved. The pipe jacking construction technology is favored because it has less impact on ground traffic and environment. However, when the pipe jacking construction is carried out in soft soil layers, problems such as poor ground stability, high construction difficulty and easy collapse often occur.

[0003] The existing patent (publication number: CN221237279U) discloses a pipe jacking construction structure penetrating through soft soil layers, which comprises a soft soil layer, a working pit and a receiving pit are formed at the top of the soft soil layer, a bottom plate is arranged at the bottom of the working pit, a moving assembly is arranged on the left side wall of the bottom plate, a hydraulic jack is arranged above the bottom plate, an extrusion plate is connected to one end of the hydraulic jack, two groups of hydraulic rods are arranged on the right side of the top of the bottom plate, a fixed plate is arranged on the top of the two groups of hydraulic rods, a placing rack is arranged on the top of the fixed plate, and a limiting assembly is arranged in the placing rack. Under the action of the moving assembly, the hydraulic jack can be moved, thereby the position of the hydraulic jack can be adjusted, the extension length of the hydraulic jack can be improved, and the pipe jacking construction structure can be used for penetrating through soft soil layers of different lengths.

[0004] However, in the above-mentioned scheme and existing structure, when the pipe jacking enters the ground layer during construction, the grouting reinforcement and shield method are used. The shield method has high equipment cost and is not suitable for small-scale projects. The grouting reinforcement effect is uneven, the ground reinforcement effect is limited, the stability is poor, and the collapse phenomenon is easy to occur. Content of the utility model

[0005] In view of the defects of the prior art, the pipe jacking construction structure penetrating through soft soil layers provided by the application has the advantages of being capable of significantly improving the stability of soft soil layers and reducing the risk of collapse, and solves the problems of uneven grouting reinforcement effect, limited ground reinforcement effect, poor stability and easy occurrence of collapse phenomenon.

[0006] To achieve the above object, the application provides the following technical scheme: a pipe jacking construction structure penetrating soft soil layer, comprising a soil layer, a working pit is formed on the upper surface of the soil layer, a receiving pit is formed on the upper surface of the soil layer, a pipe jacking body is arranged in the working pit, the inner wall of the pipe jacking body is fixedly connected with reinforcing pipe segments arranged at equal distances, a grouting hole is formed in the inner wall of each reinforcing pipe segment, each grouting hole penetrates the pipe jacking body, a guide head is fixedly installed at the right end of the pipe jacking body, a sensor module is inlaid in the guide head, and a mounting plate is fixedly installed on the inner wall of the working pit.

[0007] Through the above scheme, in order to reinforce the pipe jacking body and the soil layer, improve stability, reduce the risk of collapse, and at the same time, in order to monitor the pipe jacking body in real time, improve the accuracy of the jacking direction, and reduce construction errors, the pipe jacking body is arranged in the working pit, the reinforcing pipe segments are arranged at equal distances on the inner wall of the pipe jacking body, the grouting holes are formed in the inner wall of the reinforcing pipe segments, and the grouting holes can penetrate the pipe jacking body. Through the arrangement of the reinforcing pipe segments and the grouting holes, the stability of the soft soil layer is significantly improved, and the risk of collapse is reduced. The guide head is installed at the right end of the pipe jacking body, and the sensor module is installed in the guide head. The guide head is used for monitoring the jacking direction and the stratum state in real time, improving the accuracy of the jacking direction, and reducing construction errors. The mounting plate is arranged in the working pit, which can support and install the jacking assembly and the supporting assembly, and is convenient for construction.

[0008] Further, the mounting plate is provided with a mounting rack, and the inner wall of the mounting rack is threadedly connected with two threaded rods.

[0009] Through the above scheme, the mounting rack is arranged above the mounting plate, the inner bottom wall of the mounting rack is provided with a circular arc surface, the threaded rods are arranged on the inner wall of the mounting rack and are threadedly connected, and the threaded rods can be moved by rotating the threaded rods.

[0010] Further, each threaded rod is rotatably connected with a clamping plate at one end close to each other, and each clamping plate is fixedly connected with a clamping piece on one side close to each other.

[0011] Through the above scheme, the clamping plate is arranged at one end close to each other of the threaded rod and is rotatably connected, so as to limit the clamping plate. The clamping plate can move relatively by moving the threaded rod. The clamping piece is arranged on one side close to each other of the corresponding clamping plate, and the clamping piece can clamp the pipe jacking body by moving the clamping plate.

[0012] Further, each clamping plate is fixedly connected with two guide rods one on one side away from each other, and the outer surface of each guide rod one is slidably connected with the inner wall of the corresponding mounting rack.

[0013] Through the above scheme, the guide rod one is installed on the side away from each other of the corresponding clamping plate, and is fixedly connected, and the guide rod one is connected with the mounting frame and is slidably connected, so that the guide rod one is limited, and the clamping plate is limited.

[0014] Further, the upper surface of the mounting plate is fixedly connected with the guide rod two, and the outer surface of each guide rod two is slidably connected with the inner wall of the fixed frame.

[0015] Through the above scheme, the guide rod two is installed on the upper surface of the mounting plate and is fixedly connected, and the outer surface of the guide rod two is connected with the inner wall of the fixed frame and is slidably connected, so that the fixed frame is limited, and the fixed frame is stable when being lifted.

[0016] Further, the upper surface of the mounting plate is fixedly connected with the guide rod two, and the outer surface of each guide rod two is slidably connected with the inner wall of the fixed frame.

[0017] Through the above scheme, the guide rod two is installed on the upper surface of the mounting plate and is fixedly connected, and the outer surface of the guide rod two is connected with the inner wall of the fixed frame and is slidably connected, so that the fixed frame is limited, and the fixed frame is stable when being lifted.

[0018] Further, the upper surface of the mounting plate is fixedly connected with the guide rod two, and the outer surface of each guide rod two is slidably connected with the inner wall of the fixed frame.

[0019] Through the above scheme, the guide rod two is installed on the upper surface of the mounting plate and is fixedly connected, and the outer surface of the guide rod two is connected with the inner wall of the fixed frame and is slidably connected, so that the fixed frame is limited, and the fixed frame is stable when being lifted.

[0020] Further, the upper surface of the mounting plate is fixedly connected with the guide rod two, and the outer surface of each guide rod two is slidably connected with the inner wall of the fixed frame.

[0021] Through the above scheme, the guide rod two is installed on the upper surface of the mounting plate and is fixedly connected, and the outer surface of the guide rod two is connected with the inner wall of the fixed frame and is slidably connected, so that the fixed frame is limited, and the fixed frame is stable when being lifted.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The pipe jacking construction structure penetrating through the soft soil layer is characterized in that the pipe jacking main body is arranged in the working pit, the reinforcing pipe piece is installed on the inner wall of the pipe jacking main body, the grouting hole is arranged on the inner wall of the corresponding reinforcing pipe piece and can penetrate through the pipe jacking main body, the stability of the soft soil layer is improved obviously by the arrangement of the reinforcing pipe piece and the grouting hole, the collapse risk is reduced, the jacking direction and the stratum state are monitored in real time by the sensor module installed in the guide head, the accuracy of the jacking direction is improved, the construction error is reduced, and the penetration height of the pipeline can be adjusted conveniently by the arrangement of the telescopic rod one and the telescopic rod three. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall three-dimensional structure diagram of the application;

[0025] Figure 2 It is the overall top view structure diagram of the application;

[0026] Figure 3 It is the internal structure diagram of the working pit of the application;

[0027] Figure 4 It is the connection relationship structure diagram between the fixed frame and the guide rod two of the application;

[0028] Figure 5 It is the connection relationship structure diagram between the threaded rod and the clamping plate of the application;

[0029] Figure 6 It is the connection relationship structure diagram between the pipe jacking main body and the reinforcing pipe piece of the application.

[0030] In the drawings:

[0031] 1, soil layer; 2, working pit; 3, receiving pit; 4, pipe jacking main body; 5, reinforcing pipe piece; 6, grouting hole; 7, guide head; 8, sensor module; 9, mounting frame; 10, telescopic rod one; 11, threaded rod; 12, clamping plate; 13, clamping piece; 14, guide rod one; 15, mounting plate; 16, fixed frame; 17, telescopic rod two; 18, jacking block; 19, telescopic rod three; 20, guide rod two. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application.

[0033] Please refer to Figure 1 , Figure 2 andFigure 6 The pipe jacking construction structure crossing soft soil layer in the embodiment comprises a soil layer 1, a working pit 2 is formed on the upper surface of the soil layer 1, a receiving pit 3 is formed on the upper surface of the soil layer 1, a pipe jacking main body 4 is arranged in the working pit 2, a plurality of reinforcing pipe segments 5 are fixedly connected to the inner wall of the pipe jacking main body 4 at equal distances, a grouting hole 6 is formed in the inner wall of each reinforcing pipe segment 5, each grouting hole 6 penetrates the pipe jacking main body 4, a guide head 7 is fixedly installed at the right end of the pipe jacking main body 4, a sensor module 8 is fixedly embedded in the guide head 7, and a mounting plate 15 is fixedly installed on the inner wall of the working pit 2.

[0034] Please refer to Figure 3 and Figure 5 A mounting rack 9 is arranged above the mounting plate 15, two threaded rods 11 are threadedly connected to the inner wall of the mounting rack 9, the mounting rack 9 is arranged above the mounting plate 15, the inner bottom wall of the mounting rack 9 is provided with a circular arc surface, so as to facilitate supporting the pipe jacking main body 4, the threaded rods 11 are installed on the inner wall of the mounting rack 9 and are arranged in a threaded connection, and the threaded rods 11 can be moved by rotating the threaded rods 11.

[0035] Please refer to Figure 3 and Figure 5 Each clamping plate 12 is rotatably connected to one end of each threaded rod 11, and each clamping plate 12 is fixedly connected to one side of each threaded rod 11, the clamping plate 12 is installed on one end of each threaded rod 11 and is arranged in a rotatable connection, the clamping plate 12 is limited, the clamping plate 12 can be moved by moving the threaded rod 11, the clamping piece 13 is installed on one side of the corresponding clamping plate 12, and the clamping piece 13 can clamp the pipe jacking main body 4 by moving the clamping plate 12.

[0036] Please refer to Figure 3 and Figure 5 Each clamping plate 12 is rotatably connected to one end of each threaded rod 11, and each clamping plate 12 is fixedly connected to one side of each threaded rod 11, the clamping plate 12 is installed on one end of each threaded rod 11 and is arranged in a rotatable connection, the clamping plate 12 is limited, the clamping plate 12 can be moved by moving the threaded rod 11, the clamping piece 13 is installed on one side of the corresponding clamping plate 12, and the clamping piece 13 can clamp the pipe jacking main body 4 by moving the clamping plate 12.

[0037] Please refer to Figure 3 and Figure 5The upper surface of the mounting plate 15 is fixedly provided with the telescopic rods one 10 arranged at equal distances, and the output end of each telescopic rod one 10 is fixedly connected with the bottom surface of the mounting frame 9. The telescopic rods one 10 are arranged on the upper surface of the mounting plate 15, four telescopic rods one 10 are arranged, and the output end of each telescopic rod one 10 is connected with the bottom surface of the mounting frame 9. The mounting frame 9 can be lifted up and down through the extension and shortening of the telescopic rods one 10, so as to facilitate the adjustment of the crossing height of the pipeline.

[0038] Please refer to Figure 3 and Figure 4 The upper surface of the mounting plate 15 is fixedly provided with the telescopic rods one 10 arranged at equal distances, and the output end of each telescopic rod one 10 is fixedly connected with the bottom surface of the mounting frame 9. The telescopic rods one 10 are arranged on the upper surface of the mounting plate 15, four telescopic rods one 10 are arranged, and the output end of each telescopic rod one 10 is connected with the bottom surface of the mounting frame 9. The mounting frame 9 can be lifted up and down through the extension and shortening of the telescopic rods one 10, so as to facilitate the adjustment of the crossing height of the pipeline.

[0039] Please refer to Figure 3 and Figure 4 The upper surface of the mounting plate 15 is fixedly provided with the telescopic rods one 10 arranged at equal distances, and the output end of each telescopic rod one 10 is fixedly connected with the bottom surface of the mounting frame 9. The telescopic rods one 10 are arranged on the upper surface of the mounting plate 15, four telescopic rods one 10 are arranged, and the output end of each telescopic rod one 10 is connected with the bottom surface of the mounting frame 9. The mounting frame 9 can be lifted up and down through the extension and shortening of the telescopic rods one 10, so as to facilitate the adjustment of the crossing height of the pipeline.

[0040] Please refer to Figure 3 and Figure 4 The upper surface of the mounting plate 15 is fixedly provided with the telescopic rods one 10 arranged at equal distances, and the output end of each telescopic rod one 10 is fixedly connected with the bottom surface of the mounting frame 9. The telescopic rods one 10 are arranged on the upper surface of the mounting plate 15, four telescopic rods one 10 are arranged, and the output end of each telescopic rod one 10 is connected with the bottom surface of the mounting frame 9. The mounting frame 9 can be lifted up and down through the extension and shortening of the telescopic rods one 10, so as to facilitate the adjustment of the crossing height of the pipeline.

[0041] The pipe jacking construction structure for crossing the soft soil layer in the embodiment is provided with a pipe jacking main body 4, reinforced pipe segments 5, grouting holes 6, a sensor module 8 and the like, the pipe jacking main body 4 is arranged in a working pit 2, the reinforced pipe segments 5 are installed on the inner wall of the pipe jacking main body 4, the grouting holes 6 are arranged on the inner wall of the corresponding reinforced pipe segments 5 and can penetrate through the pipe jacking main body 4, the arrangement of the reinforced pipe segments 5 and the grouting holes 6 can significantly improve the stability of the soft soil layer 1 and reduce the risk of collapse, the sensor module 8 is installed in the guide head 7, the jacking direction and the stratum state are monitored in real time, the accuracy of the jacking direction is improved, the construction error is reduced, the extension rod one 10 and the extension rod three 19 are arranged, and the crossing height of the pipeline can be adjusted conveniently.

[0042] It should be noted that the extension rod one 10, the extension rod two 17 and the extension rod three 19 are all hydraulically driven and can generate a large pushing force, the sensor module 8 integrally comprises multiple sensors, including an inclination sensor, a soil pressure sensor, a displacement sensor and a strain gauge, so as to realize real-time monitoring of the jacking direction and the stratum state and detect the relative displacement between the pipe jacking main body 4 and the surrounding stratum.

[0043] The working principle of the above embodiment is as follows:

[0044] When the pipe jacking operation is performed, the pipe jacking main body 4 is placed on the mounting frame 9, then the corresponding threaded rod 11 is rotated to move the clamping plate 12, the outer surface of the pipe jacking main body 4 is limited by the clamping piece 13, then the mounting frame 9 and the pipe jacking main body 4 can be lifted and lowered by the extension and shortening of the extension rod one 10, so that the height of the pipe jacking main body 4 can be adjusted, the fixed frame 16 can be lifted and lowered by the extension rod three 19, so that the height of the extension rod two 17 can be adjusted according to the height of the pipe jacking main body 4, the top block 18 is in contact with the pipe jacking main body 4 by the extension rod two 17, the pipe jacking main body 4 is jacked, then the pipe jacking main body 4 enters the soil layer 1, the stability of the soft soil layer 1 can be significantly improved and the risk of collapse can be reduced by the reinforced pipe segments 5 on the inner wall of the pipe jacking main body 4 and the grouting holes 6, the jacking direction and the stratum state can be monitored in real time by the sensor module 8 installed in the guide head 7, the accuracy of the jacking direction is improved, the construction error is reduced, and the construction efficiency is improved.

[0045] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0046] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, which can be limited only by the scope of the appended claims and their equivalents.

Claims

1. A pipe jacking construction structure crossing a weak soil layer, comprising a soil layer (1), characterized in that: The upper surface of the soil layer (1) is provided with a working pit (2), the upper surface of the soil layer (1) is provided with a receiving pit (3), the inside of the working pit (2) is provided with a pipe main body (4), the inner wall of the pipe main body (4) is fixedly connected with equally arranged reinforcing pipe pieces (5), the inner wall of each reinforcing pipe piece (5) is provided with a grouting hole (6), each grouting hole (6) penetrates the pipe main body (4), the right end of the pipe main body (4) is fixedly installed with a guide head (7), the inside of the guide head (7) is fixedly embedded with a sensor module (8), and the inner wall of the working pit (2) is fixedly installed with a mounting plate (15).

2. The pipe jacking construction structure according to claim 1, wherein: The upper surface of the mounting plate (15) is provided with a mounting frame (9), and the inner wall of the mounting frame (9) is threadedly connected with two threaded rods (11).

3. The pipe jacking construction structure according to claim 2, wherein: Each threaded rod (11) is rotatably connected with a clamping plate (12) at one end thereof, and each clamping plate (12) is fixedly connected with a clamping piece (13) on the side thereof.

4. The pipe jacking construction structure according to claim 3, wherein: Each clamping plate (12) is fixedly connected with two guide rods (14) on the side thereof, and the outer surface of each guide rod (14) is slidably connected with the inner wall of the corresponding mounting frame (9).

5. The pipe jacking construction structure according to claim 2, wherein: The upper surface of the mounting plate (15) is fixedly installed with equally arranged telescopic rods (10), and the output end of each telescopic rod (10) is fixedly connected with the bottom surface of the mounting frame (9).

6. The pipe jacking construction structure according to claim 1, wherein: The upper surface of the mounting plate (15) is provided with a fixed frame (16), and the inside of the fixed frame (16) is fixedly installed with equally arranged telescopic rods (17), and the output end of each telescopic rod (17) is fixedly connected with a top block (18).

7. The pipe jacking construction structure according to claim 6, wherein: The upper surface of the mounting plate (15) is fixedly installed with two telescopic rods (19), and the output end of each telescopic rod (19) is fixedly connected with the bottom surface of the fixed frame (16).

8. The pipe jacking construction structure according to claim 6, wherein: The upper surface of the mounting plate (15) is fixedly connected with equally arranged guide rods (20), and the outer surface of each guide rod (20) is slidably connected with the inner wall of the fixed frame (16).

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