A protective device for preventing uneven settlement of super-large diameter pipelines caused by soil movement and site seismic liquefaction

Abstract

The present invention discloses a protection device for preventing uneven settlement of an extra-large diameter pipeline caused by soil movement and site seismic liquefaction, which relates to the technical field of pipeline settlement prevention, and includes: a chassis, configured to be multiple and embedded in the soil; an induction component, symmetrically fixed in the chassis; a pipeline, installed on multiple chassis; a stabilizing component, configured to be multiple and sleeved on the pipeline; and a settlement prevention device, installed in the soil and connected to the stabilizing component. Through the cooperation of the stabilizing component and the settlement prevention device installed on the outer wall of the pipeline, the present invention can support the pipeline in sections when the soil liquefies, thereby avoiding pipeline fracture caused by partial settlement of the pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline anti-settlement, and specifically to a protection device for preventing uneven settlement of super-large diameter pipelines caused by soil movement and site seismic liquefaction. Background Art

[0002] When installing pipelines, they are generally embedded in the soil. However, due to external factors, the soil may move or liquefy during an earthquake, resulting in voids in some parts of the soil, causing the soil to subside, and thus causing partial settlement of the pipeline and pipeline fracture.

[0003] Existing pipeline anti-settlement devices generally place the pipeline on multiple chassis and use steel ropes to tow the chassis. However, this method will generate a large tensile force on the steel ropes, and after being embedded in the soil, it is impossible to timely detect the position of soil subsidence, and it is not easy to inspect the device, prone to the hidden danger of uneven settlement.

[0004] In view of the above problems, the present invention provides a protection device for preventing uneven settlement of super-large diameter pipelines caused by soil movement and site seismic liquefaction to solve the above problems. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A protection device for preventing uneven settlement of super-large diameter pipelines caused by soil movement and site seismic liquefaction, comprising:

[0006] Chassis, configured to be multiple and embedded in the soil;

[0007] Induction component, symmetrically fixed inside the chassis;

[0008] Pipeline, installed on multiple chassis;

[0009] Stabilization component, configured to be multiple and sleeved on the pipeline; and

[0010] Anti-settlement component, installed in the soil and connected to the stabilization component.

[0011] Further, preferably, the induction component includes:

[0012] Fixed column, fixed inside the chassis;

[0013] Sliding column, slidably arranged inside the fixed column; and

[0014] Pressing spring, sleeved on the sliding column and located inside the fixed column.

[0015] Further, preferably, one end of the sliding column extends out of the bottom of the fixed column and is fixed with a support disk. When the support disk is not stressed, the pressing spring drives it to slide away from the fixed column. The other end of the sliding column extends out of the top of the fixed column and is provided with a clamping groove.

[0016] Further, preferably, the anti-settlement component includes:

[0017] A storage box, placed in the soil body, and an air inlet is opened at the middle position of its top. Pressure gauges are symmetrically installed on both sides of the air inlet, and both of the two pressure gauges are pressure detection gauges;

[0018] A protective cover plate, erected above the storage box and limited by the soil body. A handle is opened on the protective cover plate for facilitating the taking and placing of the protective cover plate; and

[0019] An interception component, symmetrically installed on both sides of the stabilizing component and communicated with the storage box through a hose.

[0020] Further, preferably, the stabilizing component includes:

[0021] A stabilizing ring, sleeved on the pipeline and located at the welding position of the pipeline. A communicating pipe is fixed inside it, and the communicating pipe is connected to the interception component;

[0022] Isolation columns, fixed between the stabilizing rings; and

[0023] An airbag, fixed on the outer wall of the isolation column, between the stabilizing rings and connected to the communicating pipe inside one of the stabilizing rings.

[0024] Further, preferably, the interception component includes:

[0025] An interception column, with a round hole opened at its middle position;

[0026] An installation column, vertically fixed on the interception column;

[0027] A piston, slidably arranged inside the installation column; and

[0028] A connecting piece, with one end fixed to the lower end face of the piston and the other end clamped in the clamping groove of the sliding column.

[0029] Further, preferably, the side wall of the piston near the top is provided with a ventilation hole. After the pipeline is installed, the piston is located at the round hole opened in the interception column for blocking gas. At this time, the ventilation hole and the round hole do not form an intersecting position.

[0030] Compared with the prior art, the present invention provides a protection device for preventing uneven settlement of ultra-large diameter pipelines caused by soil movement and site seismic liquefaction, and has the following beneficial effects:

[0031] In the present invention, the stable component sleeved on the outer wall of the pipeline can provide preliminary protection for the pipeline, avoiding damage caused by the direct long-term contact between the pipeline and the soil. And the pressure of the gas in the storage tank can be detected by the detection table on the storage tank, so as to judge whether the soil has subsided. When inspection is needed, by opening the protective cover plate, it is possible to quickly determine whether the airbag has inflated, so as to determine the location of soil subsidence, which is convenient for filling and repair. And when part of the soil subsides, the sliding column in the induction component at the subsidence position slides through the pressing spring, thereby opening the intercepting component, enabling the gas in the storage tank to enter the inside of the airbag, causing the airbag to inflate, and thus assisting in supporting the pipeline by squeezing the soil, avoiding local settlement of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall schematic diagram of a protection device for preventing uneven settlement of ultra-large diameter pipelines caused by soil movement and site seismic liquefaction;

[0033] Figure 2 It is an overall top view schematic diagram of a protection device for preventing uneven settlement of ultra-large diameter pipelines caused by soil movement and site seismic liquefaction;

[0034] Figure 3 It is a schematic diagram of the intercepting component of a protection device for preventing uneven settlement of ultra-large diameter pipelines caused by soil movement and site seismic liquefaction;

[0035] In the figure: 1, chassis; 2, induction component; 3, pipeline; 4, stable component; 5, storage tank; 6, intercepting component; 7, protective cover plate; 21, fixed column; 22, sliding column; 41, stable ring; 42, isolation column; 43, airbag; 51, air inlet; 52, detection table; 71, handle; 61, intercepting column; 62, mounting column; 63, connecting piece; 64, piston; 65, ventilation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Referring to Figures 1 to 3 , the present invention provides a technical solution: a protection device for preventing uneven settlement of ultra-large diameter pipelines caused by soil movement and site seismic liquefaction, including:

[0037] The chassis 1, configured to be multiple, is embedded in the soil;

[0038] The induction component 2 is symmetrically fixed in the chassis 1;

[0039] The pipeline 3 is installed on multiple chassis 1;

[0040] A plurality of stabilizing components 4 are configured to be sleeved on the pipeline 3; and

[0041] A settlement prevention component is installed in the soil body and is connected to the stabilizing component 4.

[0042] It should be noted that the stabilizing component 4 sleeved on the outer wall of the pipeline 3 can provide preliminary protection for the pipeline, preventing the pipeline 3 from being damaged due to long-term contact with the soil body, and extending the service life of the pipeline.

[0043] As a preferred embodiment, the sensing component 2 includes:

[0044] A fixed column 21 is fixed in the chassis 1;

[0045] A sliding column 22 is slidably arranged in the fixed column 21; and

[0046] A pressing spring is sleeved on the sliding column 22 and is located inside the fixed column 21.

[0047] That is to say, when part of the soil body subsides, the sliding column 22 in the sensing component 2 at the subsidence position slides through the pressing spring, so as to judge the subsidence position of the soil body.

[0048] As a preferred embodiment, one end of the sliding column 22 extends out of the bottom of the fixed column 21 and is fixed with a support plate. When the support plate is not stressed, the pressing spring drives it to slide away from the fixed column 21. The other end of the sliding column 22 extends out of the top of the fixed column 21 and is provided with a clamping groove.

[0049] As a preferred embodiment, the settlement prevention component includes:

[0050] A storage box 5 is placed in the soil body, and an air inlet 51 is opened at the middle position of its top. Pressure gauges 52 are symmetrically installed on both sides of the air inlet 51, and both of the two pressure gauges 52 are pressure gauges;

[0051] A protective cover plate 7 is erected above the storage box 5 and is limited by the soil body. A handle 71 is opened on the protective cover plate 7 for easy taking and placing of the protective cover plate 7; and

[0052] A cut-off component 6 is symmetrically installed on both sides of the stabilizing component 4 and is connected to the storage box 5 through a hose.

[0053] It should be noted that the pressure of the gas inside the storage box 5 needs to be greater than the force required to support the pipeline 3. That is to say, when the gas in the storage box 5 enters the stabilizing component 4, its pressure can still support the pipeline 3.

[0054] As a preferred embodiment, the stabilizing component 4 includes:

[0055] A stabilizing ring 41 sleeved on the pipeline 3 and located at the welding position of the pipeline 3. A communicating pipe is fixed inside it, and the communicating pipe is connected to the intercepting component 6;

[0056] Isolation columns 42 fixed between the stabilizing rings 41; and

[0057] An airbag 43 fixed on the outer wall of the isolation column 42, located between the stabilizing rings 41, and connected to the communicating pipe inside one of the stabilizing rings 41.

[0058] As a preferred embodiment, the intercepting component 6 includes:

[0059] An intercepting column 61 with a round hole opened at its middle position;

[0060] Mounting columns 62 vertically fixed on the intercepting column 61;

[0061] A piston 64 slidably disposed inside the mounting column 62; and

[0062] A connecting member 63, one end of which is fixed to the lower end surface of the piston 64, and the other end of which is clamped in the clamping groove of the sliding column 22.

[0063] As a preferred embodiment, a ventilation hole 65 is opened on the side wall of the piston 64 near the top. After the pipeline 3 is installed, the piston 64 is located at the round hole opened in the intercepting column 61 for blocking gas. At this time, the ventilation hole 65 and the round hole do not form an intersecting position.

[0064] That is to say, when the sliding column 22 slides by pressing the spring, the piston 64 is driven to slide downward through the connecting member 63, so that the ventilation hole 65 intersects with the round hole. At this time, the gas in the storage tank 5 enters the airbag 43 through the intersecting ventilation hole 65 and round hole, causing it to expand.

[0065] Specifically, during use, first, a pit is dug in the soil mass, and then the chassis 1 and the sensing component 2 are placed in the pit of the soil mass. After that, the pipe 3 sleeved with the stabilizing component 4 is placed on the chassis 1. At this time, due to the gravity of the pipe 3, the sliding column 22 and the pressing spring are compressed, so that the ventilation hole 65 in the intercepting component 6 and the round hole do not form an intersecting position, sealing the airbag 43. Then, the storage tank 5 is connected to the intercepting component 6, and gas is filled into the storage tank 5. At this time, the hose between the storage tank 5 and the intercepting component 6 is filled with gas to prevent it from being sealed when the soil mass is buried. After that, the storage tank 5 is partitioned by the protective cover plate 7. When inspection is needed, by opening the protective cover plate 7, it can be quickly determined whether the airbag 43 is inflated, so as to determine the position of the sunken soil mass, which is convenient for filling and repair. And when part of the soil mass sinks, the sliding column 22 in the sensing component 2 at the sunken position slides through the pressing spring, thus opening the intercepting component 6, enabling the gas in the storage tank 5 to enter the inside of the airbag 43, causing the airbag 43 to expand, so as to assist in supporting the pipe 3 by squeezing the soil mass and prevent local settlement of the pipe 3.

[0066] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A protection device for preventing uneven settlement of an extra-large diameter pipeline caused by soil movement and site seismic liquefaction, characterized in that: It includes: A chassis (1), configured in multiple numbers and embedded in the soil; An induction component (2), symmetrically fixed inside the chassis (1); A pipeline (3), installed on multiple chassis (1); A stabilizing component (4), configured in multiple numbers and sleeved on the pipeline (3); An anti-settlement component, installed in the soil and connected to the stabilizing component (4); The induction component (2) includes: A fixed column (21), fixed inside the chassis (1); A sliding column (22), slidably arranged inside the fixed column (21); A pressing spring, sleeved on the sliding column (22) and located inside the fixed column (21); One end of the sliding column (22) extends out of the bottom of the fixed column (21) and is fixed with a support plate. When the support plate is not stressed, the pressing spring drives it to slide away from the fixed column (21). The other end of the sliding column (22) extends out of the top of the fixed column (21) and is provided with a clamping groove; The anti-settlement component includes: A storage box (5), placed in the soil, with an air inlet (51) opened at the middle position of the top. Pressure gauges (52) are symmetrically installed on both sides of the air inlet (51), and both of the two pressure gauges (52) are pressure detection gauges; A protective cover plate (7), erected above the storage box (5) and limited by the soil. A handle (71) is opened on the protective cover plate (7) for easy taking and placing of the protective cover plate (7); An interception component (6), symmetrically installed on both sides of the stabilizing component (4) and communicated with the storage box (5) through a hose; The stabilizing component (4) includes: A stabilizing ring (41), sleeved on the pipeline (3) and located at the welding position of the pipeline (3). A communicating pipe is fixed inside, and the communicating pipe is connected to the interception component (6); Isolation columns (42), fixed between the stabilizing rings (41); An airbag (43), fixed on the outer wall of the isolation column (42) and located between the stabilizing rings (41), and connected to the communicating pipe inside one of the stabilizing rings (41); The interception component (6) includes: An interception column (61), with a round hole opened at the middle position; An installation column (62), vertically fixed on the interception column (61); A piston (64), slidably arranged inside the installation column (62); A connecting piece (63), one end of which is fixed on the lower end face of the piston (64), and the other end is clamped in the clamping groove of the sliding column (22).

2. The protection device for preventing uneven settlement of an extra-large diameter pipeline caused by soil movement and site seismic liquefaction according to claim 1, characterized in that: A ventilation hole (65) is opened on the side wall of the piston (64) near the top, and after the pipeline (3) is installed, the piston (64) is located at the round hole opened in the interception column (61) for blocking gas.

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