Supporting device and method for irregular foundation pit

Abstract

The invention relates to a supporting device and method for an irregular foundation pit, and relates to the technical field of foundation pit supporting, the supporting device comprises a plurality of foundation piles, bottom plates are arranged at the lower ends of the foundation piles, fixing mechanisms for fixing the bottom plates and the foundation piles are arranged between the bottom plates and the foundation piles, and connecting rods for connecting the two adjacent foundation piles are fixedly connected between the two adjacent foundation piles; the connecting rod is provided with a plurality of protective plates arranged in the length direction of the connecting rod, the connecting rod penetrates through the protective plates and is rotationally connected with the protective plates, each protective plate is provided with a connecting mechanism used for being connected with another protective plate, the connecting rod comprises a plurality of fixing rods and a plurality of steel wire ropes, the connecting rods and the steel wire ropes are indirectly arranged, and the steel wire ropes are fixedly connected between every two adjacent connecting rods. The protection plates are in one-to-one correspondence with the fixing rods and rotationally connected to the fixing rods, and the fixing rods located at the two ends of the connecting rod are fixedly connected to the foundation piles. The supporting effect of the supporting structure on the unsmooth foundation pit can be improved.

Description

Technical Field

[0001] This application relates to the technical field of foundation pit support, and in particular to a support device and support method for irregular foundation pits. Background Technology

[0002] Excavation pit support engineering refers to the engineering measures taken during the excavation of an excavation pit to ensure the stability of the pit walls, protect the safety of the main underground construction, and prevent damage to the surrounding environment. Its main purpose is to ensure the stability of the soil around the pit, provide sufficient space for basement construction, and protect adjacent buildings and underground pipelines from damage during the pit support and basement construction periods. Although excavation pit support is a temporary project, its importance in ensuring construction safety and the stability of the surrounding environment cannot be ignored; therefore, it requires careful consideration to ensure its quality and safety.

[0003] In related technologies, the support for foundation pits typically involves multiple piles and retaining plates. The retaining plates and piles are usually connected by welding, thereby improving the support effect and integrity of the retaining plates on the pit sidewalls. However, this type of foundation pit support is only suitable for environments with relatively smooth pit sidewalls. When there are protruding rocks on the pit sidewalls, the retaining plates and piles are difficult to adhere tightly to the pit surface due to the obstruction of the rocks, thus making this type of foundation pit support ineffective. Summary of the Invention

[0004] In order to improve the support effect of the support structure on uneven foundation pits, this application provides a support device and support method for irregular foundation pits.

[0005] Firstly, the support device for irregular foundation pits provided in this application adopts the following technical solution: A support device for irregular foundation pits includes multiple foundation piles. Each foundation pile has a base plate at its lower end. A fixing mechanism is provided between the base plate and the foundation piles to secure them. A connecting rod is fixedly connected between two adjacent foundation piles. Multiple protective plates are provided on the connecting rods along their length. The connecting rods pass through the protective plates and are rotatably connected to them. A connecting mechanism is provided on each protective plate to connect to another protective plate. Each connecting rod includes multiple fixing rods and multiple steel wire ropes. The connecting rods and steel wire ropes are indirectly connected, and the steel wire ropes are fixed between two adjacent connecting rods. Each protective plate corresponds to one of the fixing rods, and the protective plate is rotatably connected to the fixing rod. The fixing rods located at both ends of the connecting rods are fixedly connected to the foundation piles.

[0006] By adopting the above technical solution, the foundation piles can be fixed to the bottom plate by a fixing mechanism according to the shape of the pit sidewall. Then, when there are protruding rocks on the pit sidewall, the protruding rocks will abut against the protective plate, and the connecting rod will deform under the action of the wire rope, thereby changing the arrangement direction of the protective plate. This allows the protective plate rotatably connected to the connecting rod to fit better against the protruding rock. Then, multiple protective plates are connected by the connecting mechanism, thereby fixing the position of multiple protective plates. This provides better support for uneven pits and improves the support effect of the support structure on uneven pits.

[0007] Optionally, a protective rubber tube is provided between two adjacent fixed rods, the protective rubber tube is arranged around the steel wire rope, and the protective rubber tube is fixed to the fixed rod.

[0008] By adopting the above technical solution, the protective rubber tube can protect the wire rope and reduce the occurrence of wire rope wear.

[0009] Optionally, the fixing mechanism includes a fixing block disposed at the lower end of the foundation pile, the foundation pile being hinged to the fixing block, a fixing bolt being threaded onto the fixing block, the shank of the fixing bolt passing through the fixing block and threaded onto the base plate, and the fixing mechanism also including an adjusting component for adjusting the angle between the foundation pile and the base plate.

[0010] By adopting the above technical solution, the fixing bolt can be threaded onto the fixing block or detached from the fixing block by rotating the fixing bolt, thereby quickly fixing or disassembling the foundation pile on the fixing block. At the same time, the position of the foundation pile can be adjusted by adjusting the component, thereby adjusting the inclination of the foundation pile.

[0011] Optionally, the adjusting assembly includes an adjusting ring fixed to the side wall of the foundation pile. A threaded post, a rotating rod, and a threaded cylinder are provided between the adjusting ring and the fixed block. One end of the threaded post is hinged to the fixed block, one end of the rotating rod is hinged to the adjusting ring, and the threaded cylinder is placed between the rotating rod and the threaded post. The threaded post, the rotating rod, and the threaded cylinder are coaxially arranged. One end of the threaded cylinder is threaded to the threaded post, and the other end of the threaded cylinder is rotatably connected to the rotating rod.

[0012] By adopting the above technical solution, the threaded cylinder can be rotated to move along its own axis, thereby changing the length of the threaded column on the threaded cylinder. This can cause the adjusting ring to tilt, thus changing the inclination of the foundation pile.

[0013] Optionally, the connecting mechanism includes a ring fixed to the guard plate, a plurality of sliders slidably connected to the ring, and a locking component on the slider for connecting and fixing the slider on another guard plate.

[0014] By adopting the above technical solution, the fixed position of the slider on different protective plates can be changed by sliding the slider on the ring. Thus, the position of the slider can be flexibly changed according to the condition of the foundation pit, so that the fixing of the slider is more in line with the actual condition of the foundation pit.

[0015] Optionally, the locking assembly includes a limiting ring connected to the slider and a connecting rope connected to the slider, wherein a locking hook is provided at the end of the connecting rope away from the slider, and a spring is provided between the locking hook and the connecting rope for connecting the two.

[0016] By adopting the above technical solution, the locking hook on the slider of one guard plate can be hooked onto the other guard plate, and the connecting rope can be reinforced by the tension of the spring. In this way, the two guard plates can be fixed and the protruding rock can be supported by the connecting rope, thereby improving the restraining effect of this support structure on the rock.

[0017] Optionally, the connecting rope is provided with an adjusting block, one end of the connecting rope is inserted into and fixed to the adjusting block, the adjusting block is provided with an adjusting hole, the connecting rope passes out from the adjusting hole and is slidably connected in the adjusting hole, and a locking bolt is threaded on the adjusting block, the shank of the locking bolt is placed in the adjusting hole and presses the connecting rope against the side wall of the adjusting hole.

[0018] By adopting the above technical solution, the connecting rope can be fixed to the adjusting block by rotating the locking bolt or the locking bolt can be removed from fixing the connecting rope. Thus, the length of the connecting rope can be changed by changing the length of the connecting rope passing through the adjusting hole.

[0019] Optionally, the limiting ring is made of stainless steel.

[0020] By adopting the above technical solution, the occurrence of rust on the locking hook on the limiting ring can be reduced, thereby improving the stability of the locking hook on the limiting ring.

[0021] Optionally, a turntable is rotatably connected to the slider, and the limiting ring and the connecting rope are both fixed to the turntable.

[0022] By adopting the above technical solution, the direction of the limiting ring can be adjusted by the turntable, thereby making the connection between the locking hook and the limiting ring more secure.

[0023] Second aspect A support method for irregular foundation pits, utilizing the aforementioned support device for irregular foundation pits, includes the following steps: S1. Place the base plate at the edge of the bottom of the foundation pit, and then fix the foundation piles to the base plate using a fixing mechanism; S2. Make the guard plate come into contact with the protruding rock, and at the same time, the connecting rod deforms under the action of the wire rope, so that the guard plate is pressed tightly against the protruding rock; S3. Multiple guard plates are connected to each other through a connecting mechanism, thereby fixing the positions of the multiple guard plates.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Multiple protective plates can be connected by a connecting mechanism, thereby fixing the position of the multiple protective plates, thus providing better support for uneven foundation pits and improving the support effect of the support structure on uneven foundation pits. 2. It can quickly fix or remove the foundation pile on the fixing block, and the position of the foundation pile can be adjusted by adjusting the component, thereby adjusting the inclination of the foundation pile; 3. By hooking the locking hook on the slider of one guard plate to the other guard plate and reinforcing the connecting rope with the tension of the spring, the two guard plates can be fixed and the protruding rock can be supported by the connecting rope, thereby improving the rock restraint effect of this support structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the steel wire rope according to an embodiment of this application; Figure 4 yes Figure 1 A magnified view of part B in the diagram.

[0026] In the diagram, 1. Foundation pile; 2. Base plate; 3. Fixing mechanism; 31. Fixing block; 32. Fixing bolt; 33. Adjusting assembly; 331. Adjusting ring; 332. Threaded column; 333. Rotating rod; 334. Threaded cylinder; 4. Connecting rod; 41. Fixing rod; 42. Wire rope; 5. Connecting mechanism; 51. Ring; 52. Sliding block; 521. Turntable; 53. Locking assembly; 531. Limiting ring; 532. Connecting rope; 533. Locking hook; 534. Spring; 6. Protective rubber tube; 7. Adjusting block; 71. Adjusting hole; 72. Locking bolt; 9. Protective plate. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.

[0028] First aspect A support device for irregular foundation pits, referring to Figure 1 and Figure 2 The system includes multiple foundation piles 1, which are configured as two in this embodiment. The two foundation piles 1 are provided with the same base plate 2 at their lower ends. The base plate 2 is rectangular and has multiple threaded holes. A fixing mechanism 3 is provided between the base plate 2 and the foundation piles 1 to fix the two together.

[0029] The fixing mechanism 3 includes a fixing block 31 disposed at the lower end of the foundation pile 1. The fixing block 31 has a triangular cross-section, and its apex is hinged to the lower end face of the foundation pile 1. Four fixing bolts 32 are threaded onto the fixing block 31. The shank of each fixing bolt 32 passes through the fixing block 31 and is threaded into a threaded hole on the base plate 2. Thus, by rotating the fixing bolts 32, the fixing bolts 32 can be disengaged from the base plate 2, thereby releasing the fixing of the fixing block 31 to the base plate 2.

[0030] The fixing mechanism 3 includes an adjusting assembly 33 for adjusting the angle between the foundation pile 1 and the base plate 2. The adjusting assembly 33 includes an adjusting ring 331 fixedly connected to the side wall of the foundation pile 1, and a threaded post 332 is provided between the adjusting ring 331 and the fixing block 31. There are two threaded posts 332, and the fixing block 31 is placed between the two threaded posts 332. One end of the threaded post 332 is hinged to the adjusting ring 331, and the other end of the threaded post 332 is threadedly connected to a threaded cylinder 334. The end of the threaded cylinder 334 away from the threaded post 332 is rotatably connected to a rotating rod 333, and the end of the rotating rod 333 away from the threaded cylinder 334 is hinged to the fixing block 31. The threaded post 332, the rotating rod 333, and the threaded cylinder 334 are coaxially arranged.

[0031] Therefore, by rotating the threaded cylinder 334, the threaded cylinder 334 can be moved along the length of the threaded column 332, which can drive the adjusting ring 331 to tilt, thereby changing the inclination of the foundation pile 1.

[0032] Reference Figure 1 and Figure 3 Multiple connecting rods 4 are fixedly connected between two foundation piles 1. The multiple connecting rods 4 are arranged parallel to each other. Each connecting rod 4 is provided with multiple protective plates 9 arranged along the length of the connecting rod 4. The connecting rod 4 includes multiple fixed rods 41 and multiple steel wire ropes 42. The steel wire ropes 42 are made of stainless steel. In order to protect the steel wire ropes 42, a protective rubber tube 6 is provided between two adjacent fixed rods 41. The protective rubber tube 6 is arranged around the steel wire rope 42 and is fixedly connected to the fixed rod 41.

[0033] Fixed rods 41 located at both ends of the connecting rod 4 are fixedly connected to the foundation pile 1. The connecting rod 4 and the wire rope 42 are indirectly connected, and the wire rope 42 is fixedly connected between two adjacent connecting rods 4. The guard plate 9 corresponds one-to-one with the fixed rod 41. The guard plate 9 is rotatably connected to the fixed rod 41, thereby the connecting rod 4 is rotatably connected to the guard plate 9 through its own fixed rod 41. The guard plate 9 is provided with a connecting mechanism 5 for connecting another guard plate 9.

[0034] Reference Figure 1 and Figure 4 The connecting mechanism 5 includes a ring 51, which is fixedly connected to the guard plate 9. Multiple sliders 52 are slidably connected to the ring 51. A turntable 521 is rotatably connected to the side of the slider 52 away from the guard plate 9. The turntable 521 is provided with a locking assembly 53 for connecting and fixing the slider 52 on another guard plate 9.

[0035] The locking assembly 53 includes a limiting ring 531 fixedly connected to the end face of the turntable 521 and a connecting rope 532 fixedly connected to the slider 52 at one end. The end of the connecting rope 532 away from the slider 52 is provided with a locking hook 533, and a spring 534 is provided between the locking hook 533 and the connecting rope 532 for connecting the two.

[0036] Thus, by sliding the slider 52 on the ring 51, the fixed position of the slider 52 on different guard plates 9 can be changed. Then, the locking hook 533 on the slider 52 of one guard plate 9 can be hooked onto the other guard plate 9, and the connecting rope 532 can be reinforced by the tension of the spring 534. Thus, the two guard plates 9 can be fixed and the protruding rocks can be supported by the connecting rope 532.

[0037] In order to enable the spring 534 in the hook to play a better connecting role, the connecting rope 532 is provided with an adjusting block 7. One end of the connecting rope 532 is inserted into and fixedly connected to the adjusting block 7. The adjusting block 7 is provided with an adjusting hole 71. At the same time, the connecting rope 532 passes out from the adjusting hole 71 and is slidably connected in the adjusting hole 71.

[0038] The adjusting block 7 is threaded with a locking bolt 72. The rod of the locking bolt 72 is placed inside the adjusting hole 71 and presses the connecting rope 532 against the inner wall of the adjusting hole 71, thereby restricting the sliding of the connecting rope 532 inside the adjusting hole 71.

[0039] Therefore, the connecting rope 532 can be fixed to the adjusting block 7 by rotating the locking bolt 72 or the locking bolt 72 can be removed from fixing the connecting rope 532. Thus, the length of the connecting rope 532 can be changed by changing the length of the connecting rope 532 passing through the adjusting hole 71.

[0040] Second aspect This invention provides a support method for irregular foundation pits, utilizing a support device for irregular foundation pits as described in the first aspect, comprising the following steps: S1. Place the base plate 2 at the edge of the bottom of the foundation pit, and then fix the foundation pile 1 to the base plate 2 through the fixing mechanism 3; S2, make the guard plate 9 come into contact with the protruding rock, and at the same time, the connecting rod 4 deforms under the action of the wire rope 42, so that the guard plate 9 is pressed tightly against the protruding rock; S3. Multiple guard plates 9 are connected to each other by the connecting mechanism 5, thereby fixing the position of the multiple guard plates 9.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A support device for irregular foundation pits, comprising a plurality of foundation piles (1), characterized in that, The lower end of the foundation pile (1) is provided with a base plate (2), and a fixing mechanism (3) for fixing the two is provided between the base plate (2) and the foundation pile (1). A connecting rod (4) for connecting the two is fixedly connected between two adjacent foundation piles (1). Multiple protective plates (9) are provided on the connecting rod (4) along the length direction of the connecting rod (4). The connecting rod (4) passes through the protective plate (9) and is rotatably connected to the protective plate (9). The protective plate (9) is provided for connecting another protective plate (9). The connecting mechanism (5) includes a plurality of fixed rods (41) and a plurality of steel wire ropes (42). The connecting rods (4) and the steel wire ropes (42) are indirectly arranged and the steel wire ropes (42) are fixed between two adjacent connecting rods (4). The guard plate (9) corresponds one-to-one with the fixed rods (41) and the guard plate (9) is rotatably connected to the fixed rods (41). The fixed rods (41) located at both ends of the connecting rods (4) are fixed to the foundation piles (1).

2. The support device for irregular foundation pits according to claim 1, characterized in that, A protective rubber tube (6) is provided between two adjacent fixed rods (41), the protective rubber tube (6) is arranged around the steel wire rope (42), and the protective rubber tube (6) is fixed to the fixed rod (41).

3. The support device for irregular foundation pits according to claim 1, characterized in that, The fixing mechanism (3) includes a fixing block (31) disposed at the lower end of the foundation pile (1), the foundation pile (1) is hinged to the fixing block (31), a fixing bolt (32) is threadedly connected to the fixing block (31), the shank of the fixing bolt (32) passes through the fixing block (31) and is threadedly connected to the base plate (2), and the fixing mechanism (3) also includes an adjusting component (33) for adjusting the angle between the foundation pile (1) and the base plate (2).

4. A support device for irregular foundation pits according to claim 3, characterized in that, The adjusting assembly (33) includes an adjusting ring (331) fixed to the side wall of the foundation pile (1). A threaded post (332), a rotating rod (333), and a threaded cylinder (334) are provided between the adjusting ring (331) and the fixed block (31). One end of the threaded post (332) is hinged to the adjusting ring (331), and one end of the rotating rod (333) is hinged to the fixed block (31). The threaded cylinder (334) is placed between the rotating rod (333) and the threaded post (332). The threaded post (332), the rotating rod (333), and the threaded cylinder (334) are coaxially arranged. One end of the threaded cylinder (334) is threaded to the threaded post (332), and the other end of the threaded cylinder (334) is rotatably connected to the rotating rod (333).

5. A support device for irregular foundation pits according to claim 1, characterized in that, The connecting mechanism (5) includes a ring (51) fixed to the guard plate (9), and a plurality of sliders (52) are slidably connected to the ring (51). Each slider (52) is provided with a locking assembly (53) for connecting and fixing the slider (52) on another guard plate (9).

6. A support device for irregular foundation pits according to claim 5, characterized in that, The locking assembly (53) includes a limiting ring (531) connected to the slider (52) and a connecting rope (532) connected to the slider (52). A locking hook (533) is provided at one end of the connecting rope (532) away from the slider (52). A spring (534) is provided between the locking hook (533) and the connecting rope (532) for connecting the two.

7. A support device for irregular foundation pits according to claim 6, characterized in that, The connecting rope (532) is provided with an adjusting block (7). One end of the connecting rope (532) is inserted into and fixed to the adjusting block (7). The adjusting block (7) is provided with an adjusting hole (71). The connecting rope (532) passes out from the adjusting hole (71) and is slidably connected in the adjusting hole (71). The adjusting block (7) is threaded with a locking bolt (72). The rod of the locking bolt (72) is placed in the adjusting hole (71) and presses the connecting rope (532) against the side wall of the adjusting hole (71).

8. A support device for irregular foundation pits according to claim 6, characterized in that, The limiting ring (531) is made of stainless steel.

9. A support device for irregular foundation pits according to claim 7, characterized in that, A turntable (521) is rotatably connected to the slider (52), and the limiting ring (531) and the connecting rope (532) are both fixed to the turntable (521).

10. A support method for irregular foundation pits, characterized in that, The support device for irregular foundation pits as described in claim 1 includes the following steps: S1. Place the base plate (2) at the edge of the bottom of the foundation pit, and then fix the foundation pile (1) to the base plate (2) through the fixing mechanism (3); S2, make the guard plate (9) come into contact with the protruding rock, and at the same time the connecting rod (4) deforms under the action of the wire rope (42), so that the guard plate (9) is pressed against the protruding rock; S3. Multiple guard plates (9) are connected to each other by the connecting mechanism (5), thereby fixing the position of the multiple guard plates (9).

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