Device for controlling pipe jacking construction settlement

Abstract

The invention discloses a device for controlling pipe jacking construction settlement, and belongs to the technical field of building construction equipment.The device comprises a stirring machine, a first storage box, a pipe jacking machine and a first hydraulic pump, the input end of the first hydraulic pump communicates with the first storage box, the output end of the first hydraulic pump is connected with a conveying pipe, and a second storage box communicating with the conveying pipe is installed in the pipe jacking machine; a discharging pipe is fixedly arranged at the top of the pipe jacking machine in a penetrating mode, a vent hole is formed in the bottom face of the discharging pipe, a one-way valve is installed at the top of the discharging pipe, a feeding pipe is fixedly arranged on the peripheral face of the discharging pipe in a penetrating mode, a second hydraulic pump is connected to the second storage box, the output end of the second hydraulic pump communicates with the feeding pipe, and a first circular plate is slidably installed in the discharging pipe in the vertical direction. The discharging pipe is provided with a pushing assembly used for pushing the first circular plate to move upwards. It can be guaranteed that yellow mud is evenly conveyed to the outer side of the top tunnel, then the sedimentation condition in the pipe jacking construction process is controlled, the influence of construction on the surrounding environment is reduced, and the construction stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction equipment, and in particular to a device for controlling settlement of pipe jacking construction. Background Art

[0002] In modern construction and municipal engineering, pipe jacking is a common underground construction method, widely used in the construction of pipelines, tunnels and other underground facilities. Pipe jacking is usually done by a pipe jacking machine, which pushes the pipe from below the ground to the predetermined location. This method has been widely used in complex environments such as urban areas because it has little impact on the ground during construction and avoids problems such as ground subsidence and traffic interruption caused by traditional excavation methods.

[0003] For example, a Chinese patent with announcement number CN212225238U discloses a device for controlling settlement of pipe jacking construction, which comprises the following steps: a reserved hole is opened on the top of a pipe jacking machine, a one-way valve is installed, a mixer and a slurry storage barrel are set on the ground, water and loess are added to the mixer, and the mixture is stirred into a thick yellow mud slurry, which flows into the slurry storage barrel. The slurry is stored in the slurry storage barrel, and is then driven into the top outside the pipe jacking machine through a hydraulic pump, a grouting pipe, and a one-way valve to fill the soil.

[0004] As the pipe jacking machine continues to move forward, yellow mud is injected into the outside of the formed pipe jacking tunnel to compensate for the over-excavation caused by the excavation process and the lost soil. However, relying solely on the pressure of the hydraulic pump to pump the loess slurry into the outside of the pipe jacking machine through the grouting pipe, as the pipe jacking machine continues to move forward, the required grouting pipe length is longer, so the hydraulic pump is required to provide a higher pressure. If the pressure of the hydraulic pump is insufficient, it will easily lead to uneven or insufficient grouting. Summary of the invention

[0005] In order to improve the problem that insufficient pressure of a hydraulic pump easily leads to insufficient grouting, the present application provides a device for controlling settlement of pipe jacking construction.

[0006] The present application provides a device for controlling the settlement of pipe jacking construction, which adopts the following technical solution: A device for controlling settlement of pipe jacking construction comprises a mixer, a storage box, a pipe jacking machine and a hydraulic pump, wherein the input end of the hydraulic pump is communicated with the storage box, the output end of the hydraulic pump is connected with a conveying pipe, a storage box connected with the conveying pipe is installed in the pipe jacking machine, a discharge pipe is fixedly passed through the top of the pipe jacking machine, a vent hole is provided on the bottom surface of the discharge pipe, a one-way valve is installed on the top of the discharge pipe, a feed pipe is fixedly passed through the outer circumference of the discharge pipe, a hydraulic pump is connected to the storage box, the output end of the hydraulic pump is communicated with the feed pipe, a circular plate is vertically slidably installed in the discharge pipe, and a pushing component for pushing the circular plate upward is provided on the discharge pipe.

[0007] By adopting the above technical scheme, water and loess are added to the mixer and stirred into a thick yellow mud slurry. The yellow mud slurry is transported to the storage box 2 through the hydraulic pump 1 and the grouting pipe. The hydraulic pump 2 is then used to transport the yellow mud slurry to the discharge pipe through the feed pipe. The pushing component drives the circular plate 1 to move upward, thereby transporting the yellow mud slurry to the outside of the jacking tunnel for soil filling. The hydraulic pump 1, the hydraulic pump 2 and the pushing component are used to ensure that the yellow mud slurry can be evenly transported to the outside of the jacking tunnel, thereby controlling the settlement during the jacking construction process, reducing the impact of the construction on the surrounding environment, and improving the construction stability.

[0008] Preferably, the pushing assembly includes a cylinder installed in the pipe jacking machine, a pushing rod is passed through and fixed to the bottom of the discharge pipe, the top end of the pushing rod is fixedly connected to the bottom surface of the circular plate, and the top end of the piston rod of the cylinder is fixedly connected to the bottom end of the pushing rod.

[0009] By adopting the above technical solution, the cylinder is started, and the piston rod of the cylinder pushes the push rod to move upward, thereby pushing the circular plate 1 to move upward, ensuring that the circular plate 1 in the discharge pipe can transport mud to the outside of the jacking tunnel according to construction requirements.

[0010] Preferably, a blocking sleeve is fixed to the bottom surface of the circular plate 1, and the outer circumferential surface of the blocking sleeve is in contact with the inner circumferential surface of the discharge pipe.

[0011] By adopting the above technical solution, a blocking sleeve is fixed to the bottom surface of circular plate 1, and the blocking sleeve is tightly matched with the inner circumferential surface of the discharge pipe. When circular plate 1 pushes the yellow mud slurry in the discharge pipe to move upward, the blocking sleeve fits with the feed pipe, effectively preventing the yellow mud slurry from leaking to the bottom of the discharge pipe during the construction process.

[0012] Preferably, a fixed block is fixed to the inner bottom surface of the feed pipe, a fixed rod is passed through and fixed to the side of the fixed block, a sealing plate is sleeved on the outer periphery of the fixed rod, a torsion spring is sleeved on the outer periphery of the fixed rod, one end of the torsion spring is fixedly connected to the fixed block, and the other end of the torsion spring is fixedly connected to the sealing plate.

[0013] By adopting the above technical solution, when circular plate 1 is located below the sealing plate, the sealing plate rotates toward circular plate 1 under the elastic force of the torsion spring, so that the yellow mud slurry can enter the discharge pipe through the feed pipe. When circular plate 1 moves upward, circular plate 1 pushes the sealing plate to rotate upward, and the sealing plate blocks the feed pipe, further reducing the possibility of the yellow mud slurry leaking to the bottom of the discharge pipe.

[0014] Preferably, a rotating block is rotatably installed on the top surface of circular plate one, and circular plate two is fixedly mounted on the outer periphery of the rotating block. A connecting through hole one is opened on the top surface of circular plate one, and a connecting through hole two is opened on the top surface of circular plate two, and connecting through hole one can be aligned with connecting through hole two.

[0015] By adopting the above technical solution, when the circular plate 1 moves upward, the connecting through hole 1 and the connecting through hole 2 are staggered, so that the circular plate 1 can push the yellow mud slurry in the discharge pipe to the outside of the jacking tunnel; when the circular plate 1 moves downward, the connecting through hole 1 and the connecting through hole 2 are aligned, so that the circular plate 1 can be smoothly reset downward.

[0016] Preferably, a sliding block is fixed on the outer circumferential surface of the circular plate 2, and a sliding groove 1 and a sliding groove 2 arranged vertically are provided on the inner circumferential surface of the discharge pipe. The sliding block can move vertically through the sliding groove 1 and the sliding groove 2. A connecting groove 1 and a connecting groove 2 are arranged between the sliding groove 1 and the sliding groove 2. The connecting groove 1 is located above the connecting groove 2. When the sliding block is located in the sliding groove 2, the connecting through hole 1 is aligned with the connecting through hole 2.

[0017] By adopting the above technical solution, when the circular plate 1 moves upward, the sliding block moves in the sliding groove 1. At this time, the connecting through hole 1 and the connecting through hole 2 are staggered. When the circular plate 1 moves to the top of the discharge pipe, the sliding block moves through the connecting groove 1 to the sliding groove 2, and the connecting through hole 1 and the connecting through hole 2 are aligned.

[0018] Preferably, a magnetic block is fixed to the inner wall of the connecting groove 1 close to the sliding groove 2, and the magnetic block can attract the sliding block.

[0019] By adopting the above technical solution, when circular plate 1 moves to the top of the discharge pipe, the sliding block moves toward the direction close to sliding groove 2 under the suction force of the magnetic block, and moves into sliding groove 2 through connecting groove 1, thereby driving circular plate 2 to rotate, so that connecting through hole 1 and connecting through hole 2 are aligned.

[0020] Preferably, a reset block is fixed to the bottom surface of the circular plate 2, and an arc-shaped groove is provided on the top surface of the circular plate 1. The reset block is slidingly matched with the circular plate 1 through the arc-shaped groove. A reset spring is fixed to the inner wall of the arc-shaped groove near the connecting through hole 1, and the other end of the reset spring is fixedly connected to the reset block.

[0021] By adopting the above technical solution, when the sliding block moves to the bottom of the discharge pipe through sliding groove 2, the reset block rotates under the elastic force of the reset spring, thereby driving the circular plate 2 to rotate, so that the sliding block enters sliding groove 1 through connecting groove 2, and connecting through hole 1 and connecting through hole 2 are staggered.

[0022] Preferably, the inner wall of the second storage box is provided with a heating wire.

[0023] By adopting the above technical solution, the electric heating wire can heat the yellow mud in the storage box 2, reduce the possibility of coagulation and hardening of the yellow mud slurry, and improve the fluidity of the yellow mud slurry.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Add water and loess into the mixer and stir into thick yellow mud slurry. The yellow mud slurry is transported to the storage box 2 through the hydraulic pump 1 and the grouting pipe. The yellow mud slurry is then transported to the discharge pipe through the hydraulic pump 2. The push component drives the circular plate 1 to move upward, thereby transporting the yellow mud slurry to the outside of the top pipe tunnel for soil filling. The hydraulic pump 1, the hydraulic pump 2 and the push component are used to ensure that the yellow mud slurry can be evenly transported to the outside of the top tunnel, thereby controlling the settlement during the top pipe construction, reducing the impact of the construction on the surrounding environment, and improving the construction stability; 2. A blocking sleeve is fixed on the bottom surface of the circular plate 1, and the blocking sleeve is closely matched with the inner circumference of the discharge pipe. When the circular plate 1 pushes the yellow mud slurry in the discharge pipe to move upward, the blocking sleeve fits with the feed pipe, effectively preventing the yellow mud slurry from leaking to the bottom of the discharge pipe during the construction process; 3. When the circular plate 1 moves upward, the connecting through hole 1 and the connecting through hole 2 are staggered so that the circular plate 1 can push the yellow mud in the discharge pipe to the outside of the jacking tunnel; when the circular plate 1 moves downward, the connecting through hole 1 and the connecting through hole 2 are aligned so that the circular plate 1 can be smoothly reset downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the device for controlling settlement of pipe jacking construction according to an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the internal structure of the jacking pipe and the device for controlling the settlement of jacking pipe construction in an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the discharge pipe and the feed pipe in the device for controlling the settlement of the jacking pipe construction in the embodiment of the present application.

[0028] Figure 4 It is a cross-sectional view of a discharge pipe in a device for controlling settlement of jacking pipe construction according to an embodiment of the present application.

[0029] Figure 5 It is a bottom view of circular plate 1 and circular plate 2 in the device for controlling settlement of jacking pipe construction according to an embodiment of the present application.

[0030] Figure 6 It is a top view of circular plate 1 and circular plate 2 in the device for controlling settlement of jacking pipe construction according to an embodiment of the present application.

[0031] Figure 7 It is a schematic diagram of sliding groove 1 and sliding groove 2 in the device for controlling settlement of jacking pipe construction in an embodiment of the present application.

[0032] Figure numerals: 1. mixer; 11. storage box one; 12. pipe jacking machine; 13. hydraulic pump one; 14. delivery pipe; 15. storage box two; 151. hydraulic pump two; 2. discharge pipe; 21. vent; 22. circular plate one; 23. push rod; 24. cylinder; 25. blocking sleeve; 26. rotating block; 27. connecting through hole one; 28. arc groove; 29. ​​one-way valve; 3. feed pipe; 31. sealing plate; 32. fixed block; 33. fixed rod; 34. torsion spring; 4. circular plate two; 41. connecting through hole two; 42. reset block; 43. reset spring; 44. sliding block; 45. sliding groove one; 46. sliding groove two; 47. connecting groove one; 471. magnetic block; 48. connecting groove two. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 This application is described in further detail.

[0034] The present application embodiment discloses a device for controlling the settlement of pipe jacking construction. Figure 1 and Figure 2 The device for controlling the settlement of the pipe jacking construction includes a mixer 1, a storage box 11, a pipe jacking machine 12 and a hydraulic pump 13. The mixer 1 is connected to the storage box 11, and the input end of the hydraulic pump 13 is connected to the storage box 11. The output end of the hydraulic pump 13 is connected to the delivery pipe 14, and a storage box 15 connected to the delivery pipe 14 is installed in the pipe jacking machine 12. The inner wall of the storage box 15 is provided with an electric heating wire, which can heat the yellow mud in the storage box 15, reduce the possibility of coagulation and hardening of the yellow mud slurry, and improve the fluidity of the yellow mud slurry.

[0035] Reference Figure 2 and Figure 3 A discharge pipe 2 is fixedly provided on the top of the pipe jacking machine 12, and a one-way valve 29 is installed on the top of the discharge pipe 2. A feed pipe 3 is fixedly provided on the outer circumference of the discharge pipe 2, and a hydraulic pump 151 is connected to the storage box 15, and the output end of the hydraulic pump 151 is connected to the feed pipe 3. A vent hole 21 is provided on the bottom surface of the discharge pipe 2, and a circular plate 22 is installed vertically slidingly in the discharge pipe 2. A push rod 23 is fixedly provided on the bottom of the discharge pipe 2, and the top end of the push rod 23 is fixedly connected to the bottom surface of the circular plate 22. A cylinder 24 is fixed in the pipe jacking machine 12, and the top end of the piston rod of the cylinder 24 is fixedly connected to the bottom end of the push rod 23.

[0036] Reference Figure 3 and Figure 4A blocking sleeve 25 is fixed to the bottom surface of the circular plate 1 22, and the outer circumference of the blocking sleeve 25 is in contact with the inner circumference of the discharge pipe 2. A fixing block 32 is fixed to the inner bottom surface of the feed pipe 3, and a fixing rod 33 is fixed to the side of the fixing block 32. A sealing plate 31 is sleeved on the outer circumference of the fixing rod 33, and a torsion spring 34 is sleeved on the outer circumference of the fixing rod 33. One end of the torsion spring 34 is fixedly connected to the fixing block 32, and the other end of the torsion spring 34 is fixedly connected to the sealing plate 31.

[0037] When the circular plate 22 is located below the sealing plate 31, the sealing plate 31 rotates toward the direction close to the circular plate 22 under the elastic force of the torsion spring 34, so that the yellow mud slurry can enter the discharge pipe 2 through the feed pipe 3. When the circular plate 22 moves upward, the circular plate 22 pushes the sealing plate 31 to rotate upward, and the sealing plate 31 blocks the feed pipe 3, further reducing the possibility of the yellow mud slurry leaking to the bottom of the discharge pipe 2.

[0038] Reference Figure 5 and Figure 6 , a rotating block 26 is rotatably mounted on the top surface of the circular plate 1 22, and a circular plate 2 4 is sleeved and fixed on the outer periphery of the rotating block 26. A connecting through hole 1 27 is provided on the top surface of the circular plate 1 22, and a connecting through hole 2 41 is provided on the top surface of the circular plate 24, and the connecting through hole 1 27 can be aligned with the connecting through hole 2 41. A reset block 42 is fixed on the bottom surface of the circular plate 24, and an arc groove 28 is provided on the top surface of the circular plate 1 22, and the reset block 42 is slidably matched with the circular plate 1 22 through the arc groove 28. A reset spring 43 is fixed to the inner wall of the arc groove 28 near the connecting through hole 1 27, and the other end of the reset spring 43 is fixedly connected to the reset block 42.

[0039] Reference Figure 6 and Figure 7 The outer circumference of the circular plate 24 is fixed with a sliding block 44, and the inner circumference of the discharge pipe 2 is provided with a sliding groove 1 45 and a sliding groove 2 46 arranged vertically, and the sliding block 44 can move vertically through the sliding groove 1 45 and the sliding groove 2 46. A connecting groove 1 47 and a connecting groove 2 48 are arranged between the sliding groove 1 45 and the sliding groove 2 46, and the connecting groove 1 47 is located above the connecting groove 2 48. A magnetic block 471 is fixed to the inner wall of the connecting groove 1 47 near the sliding groove 2 46, and the magnetic block 471 can attract the sliding block 44.

[0040] When the circular plate 22 moves upward, the sliding block 44 moves in the sliding groove 45. At this time, the connecting through hole 1 27 and the connecting through hole 2 41 are staggered, so that the circular plate 22 can push the yellow mud in the discharge pipe 2 to the outside of the top pipe tunnel; when the circular plate 22 moves to the top of the discharge pipe 2, the sliding block 44 moves toward the direction close to the sliding groove 2 46 under the suction of the magnetic block 471, and moves into the sliding groove 2 46 through the connecting groove 1 47, thereby driving the circular plate 2 4 to rotate, so that the connecting through hole 1 27 and the connecting through hole 2 41 are aligned, so that the circular plate 22 can be smoothly reset downward; when the sliding block 44 moves to the bottom of the discharge pipe 2 through the sliding groove 2 46, the reset block 42 rotates under the elastic force of the reset spring 43, thereby driving the circular plate 2 4 to rotate, so that the sliding block 44 enters the sliding groove 1 45 through the connecting groove 2 48, and the connecting through hole 1 27 and the connecting through hole 2 41 are staggered.

[0041] The implementation principle of the device for controlling the settlement of the jacking pipe construction in the embodiment of the present application is as follows: water and loess are added to the mixer 1, and stirred into a thick yellow mud slurry, and the yellow mud slurry is transported to the storage box 2 15 through the hydraulic pump 13 and the grouting pipe, and then the hydraulic pump 2 151 is used to transport the yellow mud slurry to the discharge pipe 2 through the feed pipe 3, and the cylinder 24 drives the circular plate 1 22 to move upward, so as to transport the yellow mud slurry to the outside of the jacking pipe tunnel for soil filling, and the hydraulic pump 1 13, the hydraulic pump 2 151 and the pushing assembly are used to ensure that the yellow mud slurry can be evenly transported to the outside of the jacking tunnel, thereby controlling the settlement during the jacking pipe construction, reducing the impact of the construction on the surrounding environment, and improving the construction stability.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for controlling the settlement of a pipe jacking construction, comprising a mixer (1), a storage tank (11), a pipe jacking machine (12) and a hydraulic pump (13), wherein the input end of the hydraulic pump (13) is connected to the storage tank (11), and the output end of the hydraulic pump (13) is connected to a delivery pipe (14), characterized in that: A storage box 2 (15) connected to the conveying pipe (14) is installed in the pipe jacking machine (12); a discharge pipe (2) is fixedly installed on the top of the pipe jacking machine (12); a vent hole (21) is provided on the bottom surface of the discharge pipe (2); a check valve (29) is installed on the top of the discharge pipe (2); a feed pipe (3) is fixedly installed on the outer peripheral surface of the discharge pipe (2); a hydraulic pump 2 (151) is connected to the storage box 2 (15); the output end of the hydraulic pump 2 (151) is connected to the feed pipe (3); a circular plate 1 (22) is installed in the discharge pipe (2) along the vertical sliding direction; and a pushing component for pushing the circular plate 1 (22) to move upward is provided on the discharge pipe (2).

2. A device for controlling settlement of pipe jacking construction according to claim 1, characterized in that: The pushing assembly comprises a cylinder (24) installed in the pipe jacking machine (12); a pushing rod (23) is fixedly provided through the bottom of the discharge pipe (2); the top end of the pushing rod (23) is fixedly connected to the bottom surface of the circular plate (22); and the top end of the piston rod of the cylinder (24) is fixedly connected to the bottom end of the pushing rod (23).

3. The device for controlling settlement of pipe jacking construction according to claim 1, characterized in that: A blocking sleeve (25) is fixed to the bottom surface of the circular plate (22), and the outer circumference of the blocking sleeve (25) is in contact with the inner circumference of the discharge pipe (2).

4. A device for controlling settlement of pipe jacking construction according to claim 3, characterized in that: A fixing block (32) is fixed to the inner bottom surface of the feed pipe (3), a fixing rod (33) is passed through and fixed to the side surface of the fixing block (32), a sealing plate (31) is sleeved on the outer periphery of the fixing rod (33), a torsion spring (34) is sleeved on the outer periphery of the fixing rod (33), one end of the torsion spring (34) is fixedly connected to the fixing block (32), and the other end of the torsion spring (34) is fixedly connected to the sealing plate (31).

5. The device for controlling settlement of pipe jacking construction according to claim 1, characterized in that: A rotating block (26) is rotatably mounted on the top surface of the circular plate 1 (22), and a circular plate 2 (4) is sleeved and fixed on the outer periphery of the rotating block (26). A connecting through hole 1 (27) is provided on the top surface of the circular plate 1 (22), and a connecting through hole 2 (41) is provided on the top surface of the circular plate 2 (4), and the connecting through hole 1 (27) can be aligned with the connecting through hole 2 (41).

6. The device for controlling settlement of pipe jacking construction according to claim 5, characterized in that: A sliding block (44) is fixed on the outer circumferential surface of the circular plate (4), and a sliding groove (45) and a sliding groove (46) arranged vertically are provided on the inner circumferential surface of the discharge pipe (2). The sliding block (44) can move vertically through the sliding groove (45) and the sliding groove (46). A connecting groove (47) and a connecting groove (48) are arranged between the sliding groove (45) and the sliding groove (46). The connecting groove (47) is located above the connecting groove (48). When the sliding block (44) is located in the sliding groove (46), the connecting through hole (27) is aligned with the connecting through hole (41).

7. The device for controlling settlement of pipe jacking construction according to claim 6, characterized in that: A magnetic block (471) is fixed to the inner wall of the first connecting groove (47) close to the second sliding groove (46), and the magnetic block (471) can attract the sliding block (44).

8. The device for controlling settlement of pipe jacking construction according to claim 7, characterized in that: A reset block (42) is fixed on the bottom surface of the circular plate 2 (4), and an arc groove (28) is provided on the top surface of the circular plate 1 (22). The reset block (42) is slidably matched with the circular plate 1 (22) through the arc groove (28). A reset spring (43) is fixed on the inner wall of the arc groove (28) close to the connecting through hole 1 (27), and the other end of the reset spring (43) is fixedly connected to the reset block (42).

9. The device for controlling settlement of pipe jacking construction according to claim 1, characterized in that: The inner wall of the second storage box (15) is provided with a heating wire.

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