Protecting and adjusting device for underground gas pipeline near foundation pit
By setting up an adjustable support in the gas pipeline trench and using arc-shaped pallets and stud structures to support the gas pipeline, the problem of pipe bending and sinking during foundation pit construction is solved, and safety during construction is improved and reduced. Post-maintenance requirements.
Patent Information
- Application Number
- CN202421103000.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During the construction of the foundation pit, the gas pipeline buried in the foundation causes earth settlement and horizontal displacement due to weak foundation conditions, resulting in the pipe bend and sinking, which poses safety risks and requires later repair, adjustment and maintenance.
Design a protective adjustment device for underground gas pipelines in the foundation pit, including setting an adjustable supporter at equal intervals in the pipeline grooves, supporting the gas pipelines with arc-shaped pallets and stud structures, and maintaining the pipelines by adjusting the height of the supporters original position to prevent bend and sinking.
It effectively avoids the bending and sinking problems caused by foundation pit construction of gas pipelines, improves the safety of pipelines, and reduces the needs for later maintenance.
Smart Images
Figure CN222209294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building construction, in particular to a protective regulating device for underground gas pipelines near foundation pits. Background Art
[0002] The foundation pit is a temporary project, and its function is to provide a space for the foundation masonry work to be carried out in the position specified in the design. When excavating the foundation pit, attention should be paid to preventing problems such as slope instability, base uplift, sand liquefaction, retaining structure instability, and soil penetration damage.
[0003] When the gas pipeline buried in the foundation is close to the foundation pit and cannot be diverted, it is necessary to use excavators and other equipment to dig at the location of the gas pipeline. After digging out the gas pipeline, a protective structure is set up on its outside to avoid affecting the safety of the gas pipeline during the foundation pit construction.
[0004] At present, the protective structure of the gas pipeline only considers external protection. When encountering soft foundation conditions, the settlement or horizontal displacement of the earth around the foundation pit is relatively large, which will cause the gas pipeline to bend and sink. The safety risk is relatively high and needs to be repaired, adjusted and maintained later. Utility Model Content
[0005] In order to solve the above problems, the utility model proposes a protective regulating device for underground gas pipelines near foundation pits.
[0006] The technical scheme of the utility model is: a protective adjustment device for underground gas pipelines near foundation pits, comprising a plurality of adjustable supports arranged in pipeline grooves at equal intervals, the adjustable supports comprising a base, an arc-shaped support plate and a stud, the base comprising a bottom plate and a support block arranged in the middle of the bottom plate, the bottom plate being a square plate, the center of the support block being vertically provided with a threaded hole, the lower end of the stud being inserted into the threaded hole, the size of the arc-shaped drag plate being matched with the size of the gas pipeline, a support seat being provided in the middle of the bottom surface of the arc-shaped drag plate, a circular chamber being provided in the middle of the bottom surface of the support seat, the upper end of the stud being rotatably sleeved in the circular chamber, and a fixing nut being provided on the upper part of the stud;
[0007] The gas pipeline is matched and inserted between the arc-shaped supporting plates at the upper ends of each adjustable supporting device, and the gas pipeline is arranged horizontally.
[0008] Preferably, a rotating block with a diameter larger than that of the stud is provided at the upper end of the stud, the rotating block and the stud are coaxially arranged, the rotating matching block is inserted into the circular chamber, an annular limiting plate is fixedly connected to the port of the circular chamber, the stud passes through the middle hole of the annular limiting plate, and the size of the middle hole is larger than that of the stud.
[0009] Preferably, a locking nut is rotatably mounted on the lower portion of the stud.
[0010] Preferably, an upper reinforcing plate is provided between the arc-shaped supporting plate and the supporting seat, and a plurality of lower reinforcing plates are evenly distributed between the bottom plate and the supporting block, and both the upper reinforcing plate and the lower reinforcing plate are triangular plates.
[0011] Preferably, a concrete base is provided on the bottom surface of the pipeline groove, and the adjustable support is placed in the middle of the concrete base, with its base horizontally supported on the surface of the concrete base.
[0012] Preferably, retaining walls are provided on both sides of the pipeline groove, the retaining walls are built on a concrete base, and a movable cover plate is provided between the upper ends of the retaining walls. Grooves are provided at the upper corners of the retaining walls, and both sides of the movable cover plate are respectively inserted into the two grooves.
[0013] Preferably, a concrete slope is provided between the retaining wall and the outer side of the concrete base.
[0014] Preferably, the upper support of the retaining wall is provided with a cross brace, and pads are provided at both ends of the support rod.
[0015] The beneficial technical effects of the utility model are:
[0016] The utility model provides a more stable concrete base on the bottom surface of the excavated pipeline trench, and arranges adjustable supports at equal intervals on the concrete base, and the gas pipeline is dragged by the arc-shaped supporting plates at the upper ends of these supports. When the gas pipeline has a tendency to bend and sink, the gas pipeline can be adjusted to its original position in time by adjusting the height of the arc-shaped supporting plates, thereby avoiding damage to the structure of the gas pipeline itself and ensuring the safety of the gas pipeline during foundation pit construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the main structure of the adjustable support;
[0019] Figure 3 It is a schematic diagram of the structure of a gas pipeline and an adjustable support from a top view;
[0020] Figure 4 yes Figure 3 AA section structure schematic diagram.
[0021] In the figure, 01. adjustable support, 11. arc-shaped support plate, 111. support seat, 112. circular chamber, 113. annular limit plate, 12. stud, 121. fixing nut, 122. rotating block, 131. bottom plate, 132. support block, 133. threaded hole, 14. locking nut, 151. upper reinforcement plate, 152. lower reinforcement plate, 21. concrete base, 22. retaining wall, 23. movable cover plate, 24. concrete slope, 25. cross brace, 31. gas pipeline. DETAILED DESCRIPTION
[0022] Example 1, see the attached specification Figure 1-4 , a protective and regulating device for an underground gas pipeline in a foundation pit, comprising a plurality of adjustable supports 01 arranged in a pipeline groove at equal intervals, the adjustable support 01 comprising a base, an arc-shaped support plate 11 and a stud 12, the base comprising a bottom plate 131 and a circular support block 132 arranged in the middle of the bottom plate 131, the center of the support block 132 being provided with a threaded hole 133, the lower end of the stud 12 being inserted into the threaded hole 133, the stud 12 being able to adjust its own height by rotating in the threaded hole 133, a support seat 111 being provided in the middle of the bottom surface of the arc-shaped drag plate, the support seat 111 being able to play a role in reinforcing the arc-shaped support plate 11, a circular chamber 112 being provided in the middle of the bottom surface of the support seat 111, the upper end of the stud 12 being rotatably sleeved in the circular chamber 112, and a fixing nut 121 being provided at the upper part of the stud 12, when the height is adjusted by rotating the stud 12, its upper end is rotated in the circular chamber 112, so as to realize the height adjustment of the arc-shaped support plate 11.
[0023] The gas pipeline is matched and inserted between the arc-shaped supporting plates 11 at the upper ends of the adjustable supporting devices.
[0024] A rotating block 122 with a diameter larger than that of the stud 12 is provided at the upper end of the stud 12. The rotating block 122 is inserted into the circular chamber 112. An annular limiting plate 113 is fixedly connected to the port of the circular chamber 112. The stud 12 passes through the middle hole of the annular limiting plate 113. The annular limiting plate 113 limits the rotating block 122 in the circular chamber 112 to prevent the stud 12 and the arc-shaped support plate 11 from slipping.
[0025] A locking nut 14 is rotatably mounted on the lower portion of the stud 12 , and the stud 12 and the support seat 111 are locked by the locking nut 14 .
[0026] An upper reinforcing plate 151 is provided between the arc-shaped support plate 11 and the support seat 111, and a plurality of lower reinforcing plates 152 are evenly distributed between the bottom plate 131 and the support block 132. The reinforcing plates improve the stability of the entire adjustable support 01 so that it has sufficient strength to support the gas pipeline 31.
[0027] When the adjusting device of this embodiment is used: a pipeline groove is dug out by segmented excavation, and the excavation depth of the pipeline groove is greater than the burial depth of the gas pipeline 31, and then an adjustable supporter 01 is placed between the bottom surface of the pipeline groove and the gas pipeline, and the stud 12 is rotated by driving the fixing nut 121. The stud 12 rotates in the threaded hole 133 to increase the height, and the upper end of the stud 12 rotates in the circular chamber 112 to push the arc-shaped support plate 11 upward, so that the arc-shaped support plate 11 is tightly pressed against the bottom of the gas pipeline to support the gas pipeline. When the gas pipeline tends to bend and sink due to foundation pit construction, the gas pipeline can be adjusted to its original position in time by adjusting the height of the arc-shaped support plate 11 to avoid damage to the structure of the gas pipeline itself.
[0028] Example 2, see the attached specification Figure 1 In the first embodiment, a concrete base 21 is provided on the bottom surface of the pipeline groove, and the adjustable support 01 is placed in the middle of the concrete base 21. The concrete base 21 has better stability and can provide stable support for the adjustable support 01.
[0029] Retaining walls 22 are provided on both sides of the pipeline trench. The retaining walls 22 are built on a concrete base 21, and a movable cover plate 23 is provided between the upper ends of the retaining walls 22. A concrete slope 24 is provided between the retaining wall 22 and the outer side of the concrete base 21. The lateral force of the outer soil on the retaining wall 22 is resisted by the concrete slope. A cross brace 25 is provided on the upper part of the retaining wall 22 to support the two retaining walls 22 laterally. The internal and external reinforcement method can effectively improve the protective strength of the retaining wall 22.
Claims
1. A protective and regulating device for underground gas pipelines in foundation pits, characterized by: The invention comprises a plurality of adjustable supports which are arranged in a pipeline groove at equal intervals. The adjustable supports comprise a base, an arc-shaped support plate and a stud. The base comprises a bottom plate and a support block arranged in the middle of the bottom plate. A threaded hole is arranged at the center of the support block. The lower end of the stud is inserted into the threaded hole. A support seat is arranged in the middle of the bottom surface of the arc-shaped support plate. A circular chamber is arranged in the middle of the bottom surface of the support seat. The upper end of the stud is rotatably inserted into the circular chamber. A fixing nut is arranged at the upper part of the stud. The gas pipeline is matched and inserted between the arc-shaped supporting plates at the upper ends of each adjustable supporting device.
2. The protective and regulating device for underground gas pipelines near foundation pits according to claim 1 is characterized in that: The upper end of the stud is provided with a rotating block with a diameter larger than that of the stud. The rotating block is inserted into the circular chamber. An annular limiting plate is fixedly connected to the port of the circular chamber. The stud passes through the middle hole of the annular limiting plate.
3. The protective and regulating device for underground gas pipelines near foundation pits according to claim 2 is characterized in that: The lower part of the stud is rotatably sleeved with a locking nut.
4. The protective and regulating device for underground gas pipelines near foundation pits according to claim 1 is characterized in that: An upper reinforcing plate is arranged between the arc-shaped supporting plate and the supporting seat, and a plurality of lower reinforcing plates are evenly distributed between the bottom plate and the supporting block.
5. The protective and regulating device for underground gas pipelines near foundation pits according to claim 1 is characterized in that: The bottom surface of the pipeline groove is provided with a concrete base, and the adjustable supporter is placed in the middle of the concrete base.
6. The protective and regulating device for underground gas pipelines near foundation pits according to claim 5 is characterized in that: Retaining walls are arranged on both sides of the pipeline trench. The retaining walls are built on a concrete base, and movable cover plates are arranged between the upper ends of the retaining walls.
7. The protective and regulating device for underground gas pipelines near foundation pits according to claim 6 is characterized in that: A concrete slope is arranged between the retaining wall and the outer side of the concrete base.
8. The protective and regulating device for underground gas pipelines near foundation pits according to claim 6 is characterized by: The upper support of the retaining wall is provided with a transverse brace.