Supporting structure for deep foundation pit slope

Abstract

The utility model relates to the technical field of deep foundation pit supporting, in particular to a supporting structure for a deep foundation pit slope, which comprises a foundation pit body, a supporting plate is arranged on one side of the foundation pit body, a water collecting plate is welded on the outer wall of the bottom of the supporting plate, and a first positioning plate is welded on the outer wall of one side of the water collecting plate. According to the device, seepage water on the surface of the slope enters the cavity formed in the supporting plate through the drainage holes, so that collection of the seepage water on the surface of the slope is achieved, the inner diameter of the buffer holes is larger than that of the drainage holes, the seepage water can flow into the cavity quickly, and the seepage water flowing into the cavity can be filtered once through blocking of the protruding strips; along with more and more seeping water in the cavity, the seeping water is effectively filtered by a filter screen and then flows into a water collecting plate, and a worker can regularly communicate a butt joint pipe with an external water pumping pipe, so that the accumulated water in the cavity is rapidly pumped out, and the accumulated water is prevented from being gathered at the bottom of the deep foundation pit; therefore, the follow-up concrete casting of the foundation bed and the foundation bottom plate is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of deep foundation pit support, in particular to a support structure for a deep foundation pit slope. Background Art

[0002] Foundation pit support is a measure of support, reinforcement and protection adopted for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Effective technical measures must be taken to ensure the stability of the foundation pit slope, groundwater pumping and safe operation of construction machinery during the excavation of deep foundation pits to ensure the safety of construction personnel and construction machinery.

[0003] At present, during the construction process in deep foundation pits, large-scale water seepage often occurs on the slopes supported by the support body. The existing support structure cannot effectively evacuate the accumulated water, which easily leads to the accumulation of water at the bottom of the deep foundation pit, thereby affecting the subsequent casting of the foundation cushion layer and the foundation bottom plate concrete, and cannot meet people's use needs. Therefore, a support structure for the slope of deep foundation pits is urgently needed to solve the above problems. Utility Model Content

[0004] Based on the deficiencies in the prior art mentioned in the above background technology, the utility model provides a supporting structure for the slope of a deep foundation pit.

[0005] The utility model overcomes the above technical problems by adopting the following technical solutions, specifically:

[0006] A support structure for a deep foundation pit slope, comprising a foundation pit body, a support plate is arranged on one side of the foundation pit body, a water collecting plate is welded to the bottom outer wall of the support plate, and a first positioning plate is welded to the outer wall of one side of the water collecting plate;

[0007] The top outer wall of the first positioning plate is provided with first circular holes distributed at equal distances, and first fixing screws are inserted into the first circular holes;

[0008] A fixing groove is provided on the top outer wall of the supporting plate, a second positioning plate is clamped inside the fixing groove, second circular holes are provided on the top of the second positioning plate and are equally spaced, and a second fixing screw is inserted inside the second circular hole;

[0009] The second positioning plate is fixedly connected to the supporting plate via a set of the second fixing screws.

[0010] As a further solution of the utility model: a reinforcing plate is fixedly connected to the top outer wall of the water collecting plate, and the reinforcing plate is welded to the outer wall of one side of the supporting plate.

[0011] As a further solution of the utility model: a clamping plate is fixedly connected to the outer wall of one side of the support plate, and a clamping slot is opened on the outer wall of one side of the support plate. The clamping plate and the clamping slot are equidistantly and staggeredly distributed on one side of the support plate. The specifications of the clamping plate are matched with the clamping slot. The two groups of support plates are fixedly connected by clamping the clamping plate and the clamping slot with each other.

[0012] As a further solution of the utility model: both the clamping plate and the clamping slot are provided with mounting holes, and a third fixing screw is arranged inside the mounting hole.

[0013] As a further solution of the utility model: a cavity is opened inside the support plate, and drainage holes and buffer holes are opened on the outer wall of one side of the support plate at equal distances. The buffer holes are connected to the drainage holes, and the inner diameter of the buffer holes is larger than the inner diameter of the drainage holes.

[0014] As a further solution of the utility model: the bottom inner wall of the water collecting plate is provided with a convex strip, and a filter screen is provided on one side of the convex strip.

[0015] As a further solution of the utility model: a butt joint pipe is inserted into the top outer wall of the water collecting plate, a water suction pipe is fixedly connected to the bottom of the butt joint pipe, and the water suction pipe is located inside the water collecting plate.

[0016] After adopting the above structure, the utility model has the following advantages compared with the prior art:

[0017] In the utility model, by providing a support plate, a clamping plate, a clamping groove, a first positioning plate and a second positioning plate, when the staff needs to support the slope of a deep foundation pit, they can first press one group of support plates against the outer wall of one side of the slope, and then clamp the clamping plate on one side of the other group of support plates into the clamping groove opened on the side of the support plate, thereby realizing the rapid assembly of the two groups of support plates and expanding the support area of ​​the slope. After the two groups of support plates are connected, the staff assembles and clamps the second positioning plate and the support plate to fix them. Finally, the staff realizes the triple fixation of the support plate through the joint action of the first fixing screw, the second fixing screw and the third fixing screw, thereby ensuring that the support plate can stably support the slope and avoiding the collapse of the slope during the support process.

[0018] In the utility model, by providing drainage holes, buffer holes, air, water collecting plates and suction pipes, water seepage may occur in the slope during the long-term support of the slope by the support plate. At this time, the groundwater seeping from the slope will flow into the drainage holes through the buffer holes, and enter the cavity opened in the support plate through the drainage holes, thereby collecting the water seepage on the slope surface. The inner diameter of the buffer hole is larger than the drainage hole, which can accelerate the flow of seepage water into the cavity. The seepage water flowing into the cavity will be filtered once through the obstruction of the convex strips. Subsequently, as more and more water seeps into the cavity, it will flow into the water collecting plate after effective filtration through the filter net. The staff can regularly connect the butt joint pipe with the external pumping pipe, thereby realizing the rapid extraction of water accumulated in the cavity, avoiding the accumulation of water at the bottom of the deep foundation pit, thereby affecting the subsequent casting of concrete for the foundation cushion layer and the foundation bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the combined structure of the support plate of the utility model.

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 4 It is a schematic diagram of the end face cross-sectional structure of the utility model.

[0023] Figure 5 It is a schematic diagram of the split structure of the support plate of the utility model.

[0024] In the figure: 1. foundation pit body; 2. support plate; 3. reinforcement plate; 4. water collecting plate; 6. first fixing screw; 7. butt pipe; 8. first positioning plate; 9. second positioning plate; 10. second fixing screw; 11. drainage hole; 12. third fixing screw; 13. buffer hole; 14. cavity; 15. convex strip; 16. filter screen; 17. water suction pipe; 18. clamping plate; 19. clamping groove; 20. installation hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 5In the embodiment of the utility model, the supporting structure for the deep foundation pit slope includes a foundation pit body 1, a supporting plate 2 is arranged on one side of the foundation pit body 1, a water collecting plate 4 is welded to the bottom outer wall of the supporting plate 2, and a first positioning plate 8 is welded to the outer wall of one side of the water collecting plate 4;

[0027] The top outer wall of the first positioning plate 8 is provided with first circular holes distributed at equal distances, and the first fixing screws 6 are inserted into the first circular holes;

[0028] A fixing groove is provided on the top outer wall of the support plate 2, and a second positioning plate 9 is clamped inside the fixing groove. Second circular holes distributed at equal distances are provided on the top of the second positioning plate 9, and a second fixing screw 10 is inserted inside the second circular hole.

[0029] The second positioning plate 9 is fixedly connected to the supporting plate 2 via a set of second fixing screws 10 .

[0030] Preferably, the top outer wall of the water collecting plate 4 is fixedly connected with a reinforcing plate 3, and the reinforcing plate 3 is welded to one side outer wall of the supporting plate 2, thereby ensuring the overall strength of the supporting plate 2.

[0031] Preferably, a clamping plate 18 is fixedly connected to the outer wall of one side of the support plate 2, and a clamping groove 19 is opened on the outer wall of one side of the support plate 2. The clamping plate 18 and the clamping groove 19 are equidistantly and staggeredly distributed on one side of the support plate 2, and the specifications of the clamping plate 18 are adapted to the clamping groove 19. The two groups of support plates 2 are fixedly connected to each other through the clamping plate 18 and the clamping groove 19, and the clamping plate 18 on one side of the other group of support plates 2 is clamped into the clamping groove 19 opened on one side of the support plate 2, thereby realizing the rapid assembly of the two groups of support plates 2 and expanding the support area of ​​the slope.

[0032] Preferably, both the clamping plate 18 and the clamping slot 19 are provided with a mounting hole 20 , and a third fixing screw 12 is disposed inside the mounting hole 20 .

[0033] Preferably, a cavity 14 is opened inside the support plate 2, and drainage holes 11 and buffer holes 13 are opened on the outer wall of one side of the support plate 2 at equal distances. The buffer hole 13 is connected to the drainage hole 11, and the inner diameter of the buffer hole 13 is larger than the inner diameter of the drainage hole 11. During the long-term support of the slope by the support plate 2, water seepage will occur in the slope. At this time, the groundwater seeping from the slope will flow into the drainage hole 11 through the buffer hole 13, and enter the cavity 14 opened inside the support plate 2 through the drainage hole 11, thereby realizing the collection of water seepage on the surface of the slope. The inner diameter of the buffer hole 13 is larger than the drainage hole 11, which can accelerate the flow of seepage water into the cavity 14.

[0034] Preferably, the bottom inner wall of the water collecting plate 4 is provided with a convex strip 15, and a filter net 16 is provided on one side of the convex strip 15. The seepage water flowing into the cavity 14 will be filtered once through the obstruction of the convex strip 15. Then, as more and more water seeps into the cavity 14, it will flow into the water collecting plate 4 after being effectively filtered by the filter net 16.

[0035] Preferably, a docking pipe 7 is inserted into the top outer wall of the water collecting plate 4, and a suction pipe 17 is fixedly connected to the bottom of the docking pipe 7. The suction pipe 17 is located inside the water collecting plate 4. The staff can regularly connect the docking pipe 7 with the external pumping pipe, so as to quickly extract the accumulated water in the cavity 14 and avoid the accumulated water from accumulating at the bottom of the deep foundation pit, thereby affecting the subsequent concrete casting of the foundation cushion layer and the foundation bottom plate.

[0036] Working principle: When the staff needs to support the deep foundation pit slope, they can first press a group of support plates 2 against the outer wall of one side of the slope, and then clamp the clamping plate 18 on one side of the other group of support plates 2 into the clamping groove 19 opened on one side of the support plate 2, so as to realize the rapid assembly of the two groups of support plates 2 and expand the support area of ​​the slope. After the two groups of support plates 2 are connected, the staff will assemble and clamp the second positioning plate 9 with the support plate 2. Finally, the staff realizes the triple fixation of the support plate 2 through the joint action of the first fixing screw 6, the second fixing screw 10 and the third fixing screw 12, so as to ensure that the support plate 2 can stably support the slope and avoid the collapse of the slope during the support process. In the process, water seepage may occur on the slope. At this time, groundwater seeping from the slope will flow into the drainage hole 11 through the buffer hole 13, and enter the cavity 14 opened in the support plate 2 through the drainage hole 11, so as to collect the water seepage on the slope surface. The inner diameter of the buffer hole 13 is larger than the drainage hole 11, which can accelerate the flow of water into the cavity 14. The water seeping into the cavity 14 will be blocked by the convex strip 15 for one filtration. Then, as more and more water seeps into the cavity 14, it will be effectively filtered by the filter net 16 and flow into the water collecting plate 4. The staff can regularly connect the butt joint pipe 7 with the external pumping pipe, so as to realize the rapid extraction of the accumulated water in the cavity 14 and avoid the accumulation of accumulated water at the bottom of the deep foundation pit, thereby affecting the subsequent casting of concrete for the foundation cushion layer and the foundation bottom plate.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A supporting structure for a deep foundation pit slope, comprising a foundation pit body (1), characterized in that: A support plate (2) is provided on one side of the foundation pit body (1), a water collecting plate (4) is welded to the bottom outer wall of the support plate (2), and a first positioning plate (8) is welded to the outer wall of one side of the water collecting plate (4); The top outer wall of the first positioning plate (8) is provided with first circular holes distributed at equal distances, and the first fixing screws (6) are inserted into the first circular holes; The top outer wall of the support plate (2) is provided with a fixing groove, a second positioning plate (9) is clamped inside the fixing groove, the top of the second positioning plate (9) is provided with second circular holes distributed at equal distances, and a second fixing screw (10) is inserted inside the second circular hole; The second positioning plate (9) is fixedly connected to the supporting plate (2) via a set of second fixing screws (10).

2. The supporting structure for deep foundation pit slope according to claim 1, characterized in that: A reinforcing plate (3) is fixedly connected to the top outer wall of the water collecting plate (4), and the reinforcing plate (3) is welded to an outer wall of one side of the supporting plate (2).

3. The supporting structure for deep foundation pit slope according to claim 2, characterized in that: A clamping plate (18) is fixedly connected to the outer wall of one side of the support plate (2); a clamping groove (19) is provided on the outer wall of one side of the support plate (2); the clamping plate (18) and the clamping groove (19) are staggered and distributed at equal distances on one side of the support plate (2); the specification of the clamping plate (18) is compatible with the clamping groove (19); two groups of the support plates (2) are clamped to each other through the clamping plate (18) and the clamping groove (19) to form a fixed connection.

4. The supporting structure for deep foundation pit slope according to claim 3, characterized in that: The clamping plate (18) and the clamping slot (19) are both provided with a mounting hole (20), and a third fixing screw (12) is arranged inside the mounting hole (20).

5. The supporting structure for deep foundation pit slope according to claim 4, characterized in that: A cavity (14) is provided inside the support plate (2), and drainage holes (11) and buffer holes (13) are provided on an outer wall of one side of the support plate (2) at equal distances. The buffer holes (13) are connected to the drainage holes (11), and the inner diameter of the buffer holes (13) is larger than the inner diameter of the drainage holes (11).

6. The supporting structure for deep foundation pit slope according to claim 5, characterized in that: The bottom inner wall of the water collecting plate (4) is provided with a convex strip (15), and a filter screen (16) is provided on one side of the convex strip (15).

7. The supporting structure for deep foundation pit slope according to claim 6, characterized in that: A butt joint pipe (7) is inserted into the top outer wall of the water collecting plate (4), a water suction pipe (17) is fixedly connected to the bottom of the butt joint pipe (7), and the water suction pipe (17) is located inside the water collecting plate (4).

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