Bin-divided deep foundation pit supporting structure adjacent to subway tunnel

Abstract

The utility model discloses a sub-warehouse deep foundation pit supporting structure adjacent to a subway tunnel, and belongs to the field of deep foundation pit supporting construction.The sub-warehouse deep foundation pit supporting structure comprises the subway tunnel, a first sub-foundation pit is arranged on one side of the subway tunnel, and a second sub-foundation pit is arranged on the side, away from the subway tunnel, of the first sub-foundation pit; a first underground diaphragm wall is arranged between the subway tunnel and the first branch foundation pit, a second underground diaphragm wall is arranged between the first branch foundation pit and the second branch foundation pit, a supporting frame is slidably connected to the interior of the second branch foundation pit, and a mounting frame is fixedly connected to the top of the supporting frame. The installation frame and the second underground diaphragm wall are supported through the supporting rod, then the sleeve rod is rotated to enable the threaded rod to move in the sleeve rod, the length of the supporting rod is adjusted, and the problem that when an existing branch bin deep foundation pit supporting structure close to the subway tunnel supports the second underground diaphragm walls with different lengths, inclined supporting rods need to be replaced, and the supporting efficiency is high is solved. And the practicability is reduced, and the practicability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of deep foundation pit support construction, and in particular to a compartmented deep foundation pit support structure adjacent to a subway tunnel. Background Art

[0002] With the acceleration of urbanization, the development and utilization of urban underground space has received more and more attention. Especially in large cities, due to the shortage of land resources, many buildings need to be built near subway lines or even close to subway tunnels. This has brought new challenges to foundation pit support technology.

[0003] In the patent with the published authorization announcement number CN214530704U, a compartment deep foundation pit support structure adjacent to the subway tunnel is provided in a deep foundation pit near the subway tunnel; the deep foundation pit includes a first sub-foundation pit and a second sub-foundation pit; a first ground-connected wall is provided between the first sub-foundation pit and the subway tunnel; a second ground-connected wall is provided between the second sub-foundation pit and the first sub-foundation pit; an underground structural bottom plate and an underground structural wall column are provided in the second sub-foundation pit; the compartment deep foundation pit support structure includes diagonal braces, bottom supports and top connectors; the bottom supports include cast-in-place concrete platforms, embedded plates and embedded steel bars; the cast-in-place concrete platforms are provided between the underground structural wall columns and the underground structural bottom plate; the embedded plates are provided on the side of the cast-in-place concrete platforms; the embedded steel bars are embedded in the cast-in-place concrete platforms; the top connectors include anchor plates and anchor bars; the diagonal braces are a lattice structure connected between the embedded plates and the anchor plates. The utility model solves the problems of excessive displacement, poor safety and insufficient horizontal support force in traditional construction of deep foundation pits close to subways.

[0004] When the above device is implemented, the second ground-connected wall is supported by diagonal braces. However, the existing compartmented deep foundation pit support structure adjacent to the subway tunnel needs to replace the diagonal braces when supporting the second ground-connected walls of different lengths, resulting in reduced practicality. Utility Model Content

[0005] In view of the deficiencies of the existing technology, the present invention provides a compartmented deep foundation pit support structure adjacent to a subway tunnel, which overcomes the deficiencies of the existing technology and aims to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a compartment deep foundation pit support structure adjacent to a subway tunnel, comprising a subway tunnel, a first sub-foundation pit being provided on one side of the subway tunnel, a second sub-foundation pit being provided on the side of the first sub-foundation pit away from the subway tunnel, a first ground-connected wall being provided between the subway tunnel and the first sub-foundation pit, a second ground-connected wall being provided between the first sub-foundation pit and the second sub-foundation pit, a support frame being slidably connected inside the second sub-foundation pit, a mounting frame being fixedly connected to the top of the support frame, a support mechanism being provided between the support frame and the mounting frame, the support mechanism comprising a support rod, the support rod being rotatably connected to the support frame, two support rods being provided, the two support rods being symmetrically distributed on the surface of the support frame, a sleeve rod being provided between the two support rods, two threaded rods being threadedly connected inside the sleeve rod, the two threaded rods being fixedly connected to the two support rods respectively, and the thread directions of the two threaded rods being opposite, a slider being slidably connected inside the mounting frame, a positioning mechanism being provided on the surface of the slider, a drainage mechanism being provided on one side of the support frame, and a protective mechanism being provided on the surface of the support frame.

[0007] As a preferred embodiment, the slider is rotatably connected to the support rod, and a sliding groove is provided on the surface of the mounting frame, and the sliding groove is adapted to the slider.

[0008] By adopting the above technical solution, the slider is limited by the slide groove, and the slider slides inside the slide groove to adjust the support position of the support rod on the mounting bracket, which can better adjust the support position of the mounting bracket.

[0009] As a preferred embodiment, the positioning mechanism includes a bolt, which is threadedly connected to the slider, and a plurality of mounting holes are opened on the surface of the mounting frame, and the plurality of mounting holes are evenly distributed on the surface of the mounting frame, and the mounting holes are adapted to the bolts.

[0010] By adopting the above technical solution, the bolt is limited by the mounting hole, and the bolt is rotated to pass through the mounting frame and enter the interior of the slider to position the slider, which can better position the slider.

[0011] As a preferred embodiment, the drainage mechanism includes a water pump, which is fixedly connected to the second ground connection wall. The input end of the water pump passes through the second ground connection wall and is connected to the interior of the first sub-foundation pit. The water pump is fixedly connected to a delivery pipe on the side away from the second ground connection wall.

[0012] By adopting the above technical solution, the accumulated water inside the first sub-foundation pit is sucked into the delivery pipe through the input end of the water pump, and then the delivery pipe transports the accumulated water, which can better clean the accumulated water inside the first sub-foundation pit.

[0013] As a preferred embodiment, the protective mechanism comprises a wear-resistant layer, the wear-resistant layer is fixedly connected to the support frame, the side of the wear-resistant layer away from the support frame is fixedly connected with an anti-oxidation layer, the wear-resistant layer is made of aluminum oxide, and the anti-oxidation layer is made of ceramic material.

[0014] By adopting the above technical solution, the wear-resistant layer is made of aluminum oxide, the anti-oxidation layer is made of ceramic material, the wear-resistant layer strengthens the wear resistance of the support frame, and the anti-oxidation layer strengthens the oxidation resistance of the support frame, so that the support frame can be better protected.

[0015] As a preferred embodiment, the bottom of the first sub-foundation pit is funnel-shaped.

[0016] By adopting the above technical solution, the bottom of the first sub-foundation pit is funnel-shaped, so that the accumulated water inside the first sub-foundation pit can be better collected.

[0017] As a preferred embodiment, a controller is fixedly connected to the surface of the second ground-connected wall, and the controller is electrically connected to the water pump.

[0018] By adopting the above technical solution, the controller is electrically connected to the water pump, and the controller controls the switch of the water pump, so that the switch of the water pump can be better controlled.

[0019] Beneficial effects of this application:

[0020] 1. This compartmented deep foundation pit support structure adjacent to a subway tunnel is provided with support rods, threaded rods, and sleeve rods. The support rods are used to support the mounting frame and the second ground connection wall. The sleeve rods are then rotated to move the threaded rods inside the sleeve rods to adjust the length of the support rods. This avoids the problem of reduced practicality caused by the need to replace diagonal support rods when supporting second ground connection walls of different lengths in the existing compartmented deep foundation pit support structure adjacent to a subway tunnel, thereby improving practicality.

[0021] 2. This kind of compartment deep foundation pit support structure adjacent to the subway tunnel, by setting bolts and mounting holes, limits the slider through the slide groove, and then the slider slides inside the slide groove to adjust the support position of the support rod on the mounting frame, and then limits the bolt by the mounting hole, and then the bolt is rotated to pass through the mounting frame into the interior of the slider to position the slider, avoiding the problem of the existing compartment deep foundation pit support structure adjacent to the subway tunnel that the support position of the diagonal support rod cannot be adjusted, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of this application;

[0023] Figure 2 This is a schematic diagram of the second foundation pit structure of this application;

[0024] Figure 3 This is a schematic diagram of the support structure of this application;

[0025] Figure 4 This is a schematic diagram of the protection organization structure of this application.

[0026] Numbers in the figure: 1. Subway tunnel; 2. Drainage mechanism; 21. Water pump; 22. Delivery pipe; 3. Support mechanism; 31. Support rod; 32. Threaded rod; 33. Sleeve rod; 4. Protection mechanism; 41. Wear-resistant layer; 42. Anti-oxidation layer; 5. Positioning mechanism; 51. Bolt; 52. Mounting hole; 6. Slide groove; 7. Slider; 8. Support frame; 9. First sub-foundation pit; 10. Second sub-foundation pit; 11. First ground-connected wall; 12. Second ground-connected wall; 13. Mounting frame; 14. Controller. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0028] Reference Figure 1-Figure 3 A compartment deep foundation pit support structure adjacent to a subway tunnel includes a subway tunnel 1, a first sub-foundation pit 9 is provided on one side of the subway tunnel 1, a second sub-foundation pit 10 is provided on the side of the first sub-foundation pit 9 away from the subway tunnel 1, a first ground-connected wall 11 is provided between the subway tunnel 1 and the first sub-foundation pit 9, a second ground-connected wall 12 is provided between the first sub-foundation pit 9 and the second sub-foundation pit 10, a support frame 8 is slidably connected to the interior of the second sub-foundation pit 10, a mounting frame 13 is fixedly connected to the top of the support frame 8, a support mechanism 3 is provided between the support frame 8 and the mounting frame 13, the support mechanism 3 includes a support rod 31, the support rod 31 is rotatably connected to the support frame 8, and the support rod 31 has two The two support rods 31 are symmetrically distributed on the surface of the support frame 8. A sleeve rod 33 is provided between the two support rods 31. The sleeve rod 33 is internally threadedly connected to two threaded rods 32. The two threaded rods 32 are fixedly connected to the two support rods 31 respectively. The thread directions of the two threaded rods 32 are opposite. The interior of the mounting frame 13 is slidably connected with a slider 7. The slider 7 is rotatably connected to the support rod 31. A slide groove 6 is provided on the surface of the mounting frame 13, and the slide groove 6 is adapted to the slider 7. The slider 7 is limited by the slide groove 6, and then the slider 7 slides inside the slide groove 6 to adjust the support position of the support rod 31 on the mounting frame 13, so as to better adjust the support position of the mounting frame 13.

[0029] Reference Figure 2-Figure 3A positioning mechanism 5 is provided on the surface of the slider 7, and the positioning mechanism 5 includes a bolt 51. The bolt 51 is threadedly connected to the slider 7. A plurality of mounting holes 52 are opened on the surface of the mounting frame 13. The plurality of mounting holes 52 are evenly distributed on the surface of the mounting frame 13, and the mounting holes 52 are adapted to the bolts 51; the bolts 51 are limited by the mounting holes 52, and then the bolts 51 are rotated to make the bolts 51 pass through the mounting frame 13 and enter the interior of the slider 7 to position the slider 7, so that the slider 7 can be better positioned.

[0030] Reference Figure 1-Figure 3 A drainage mechanism 2 is provided on one side of the support frame 8, and the drainage mechanism 2 includes a water pump 21. The water pump 21 is fixedly connected to the second ground-connected wall 12. The input end of the water pump 21 passes through the second ground-connected wall 12 and is communicated with the interior of the first sub-foundation pit 9. The side of the water pump 21 away from the second ground-connected wall 12 is fixedly connected with a delivery pipe 22; the accumulated water inside the first sub-foundation pit 9 is sucked into the delivery pipe 22 through the input end of the water pump 21, and then the accumulated water is transported by the delivery pipe 22, which can better clean the accumulated water inside the first sub-foundation pit 9.

[0031] Reference Figure 4 A protective mechanism 4 is provided on the surface of the support frame 8, and the protective mechanism 4 has a wear-resistant layer 41. The wear-resistant layer 41 is fixedly connected to the support frame 8, and an anti-oxidation layer 42 is fixedly connected to the side of the wear-resistant layer 41 away from the support frame 8. The wear-resistant layer 41 is made of aluminum oxide, and the anti-oxidation layer 42 is made of ceramic. By making the wear-resistant layer 41 of aluminum oxide and the anti-oxidation layer 42 of ceramic, and strengthening the wear resistance of the support frame 8 by the wear-resistant layer 41, and strengthening the anti-oxidation property of the support frame 8 by the anti-oxidation layer 42, the support frame 8 can be better protected.

[0032] Reference Figure 1 The bottom of the first sub-foundation pit 9 is funnel-shaped; because the bottom of the first sub-foundation pit 9 is funnel-shaped, the accumulated water inside the first sub-foundation pit 9 can be better collected.

[0033] Reference Figure 2 A controller 14 is fixedly connected to the surface of the second ground-connected wall 12, and the controller 14 is electrically connected to the water pump 21; by electrically connecting the controller 14 to the water pump 21, the controller 14 controls the switch of the water pump 21, which can better control the switch of the water pump 21.

[0034] Working principle: The foundation pit is divided into a first sub-foundation pit 9 and a second sub-foundation pit 10 by the first ground-connected wall 11 and the second ground-connected wall 12, and the accumulated water inside the first sub-foundation pit 9 is sucked into the delivery pipe 22 by the input end of the water pump 21, and the accumulated water is transported by the delivery pipe 22, and then the wear-resistant layer 41 is made of alumina material, and the anti-oxidation layer 42 is made of ceramic material, and the wear-resistant layer 41 strengthens the wear resistance of the support frame 8, and the anti-oxidation layer 42 strengthens the anti-oxidation property of the support frame 8, and then the chute 6 limits the slider 7, and then the slider 7 slides inside the slide groove 6 to adjust the support position of the support rod 31 on the mounting frame 13, and then the mounting hole 52 limits the bolt 51, and then the bolt 51 is rotated to make the bolt 51 pass through the mounting frame 13 and enter the interior of the slider 7 to position the slider 7, and then the support rod 31 supports the mounting frame 13 and the second ground connecting wall 12, and then the sleeve rod 33 is rotated to make the threaded rod 32 move inside the sleeve rod 33 to adjust the length of the support rod 31.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A compartmented deep foundation pit support structure adjacent to a subway tunnel, comprising a subway tunnel (1), characterized in that: A first sub-foundation pit (9) is provided on one side of the subway tunnel (1), a second sub-foundation pit (10) is provided on the side of the first sub-foundation pit (9) away from the subway tunnel (1), a first ground connection wall (11) is provided between the subway tunnel (1) and the first sub-foundation pit (9), a second ground connection wall (12) is provided between the first sub-foundation pit (9) and the second sub-foundation pit (10), a support frame (8) is slidably connected to the interior of the second sub-foundation pit (10), a mounting frame (13) is fixedly connected to the top of the support frame (8), a support mechanism (3) is provided between the support frame (8) and the mounting frame (13), the support mechanism (3) comprises a support rod (31), and the support rod (31) is connected to the mounting frame (13). The support frame (8) is rotatably connected, and two support rods (31) are provided. The two support rods (31) are symmetrically distributed on the surface of the support frame (8). A sleeve rod (33) is provided between the two support rods (31). The sleeve rod (33) is internally threadedly connected to two threaded rods (32). The two threaded rods (32) are respectively fixedly connected to the two support rods (31). The thread directions of the two threaded rods (32) are opposite. The interior of the mounting frame (13) is slidably connected to a slider (7). A positioning mechanism (5) is provided on the surface of the slider (7). A drainage mechanism (2) is provided on one side of the support frame (8). A protection mechanism (4) is provided on the surface of the support frame (8).

2. The compartmented deep foundation pit support structure adjacent to a subway tunnel according to claim 1 is characterized in that: The slider (7) is rotatably connected to the support rod (31), and a slide groove (6) is provided on the surface of the mounting frame (13), and the slide groove (6) is adapted to the slider (7).

3. The compartmented deep foundation pit support structure adjacent to a subway tunnel according to claim 1 is characterized in that: The positioning mechanism (5) includes a bolt (51), the bolt (51) is threadedly connected to the slider (7), and a surface of the mounting frame (13) is provided with a plurality of mounting holes (52), the plurality of mounting holes (52) are evenly distributed on the surface of the mounting frame (13), and the mounting holes (52) are adapted to the bolt (51).

4. The compartmented deep foundation pit support structure adjacent to a subway tunnel according to claim 1 is characterized in that: The drainage mechanism (2) comprises a water pump (21), the water pump (21) being fixedly connected to the second ground connection wall (12), the input end of the water pump (21) passing through the second ground connection wall (12) and communicating with the interior of the first sub-foundation pit (9), and a delivery pipe (22) being fixedly connected to the side of the water pump (21) away from the second ground connection wall (12).

5. The compartmented deep foundation pit support structure adjacent to a subway tunnel according to claim 1 is characterized in that: The protective mechanism (4) comprises a wear-resistant layer (41), the wear-resistant layer (41) being fixedly connected to the support frame (8), and an anti-oxidation layer (42) being fixedly connected to a side of the wear-resistant layer (41) away from the support frame (8), the wear-resistant layer (41) being made of aluminum oxide, and the anti-oxidation layer (42) being made of ceramic.

6. The compartmented deep foundation pit support structure adjacent to a subway tunnel according to claim 1, characterized in that: The bottom of the first foundation pit (9) is funnel-shaped.

7. The compartmented deep foundation pit support structure adjacent to a subway tunnel according to claim 4, characterized in that: A controller (14) is fixedly connected to the surface of the second ground connection wall (12), and the controller (14) is electrically connected to the water pump (21).

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