Detachable foundation pit water retaining device
Through the combined structure of channel steel and water barrier, the problems of slow construction and poor waterproofing capabilities of foundation pit water barrier devices are solved, and the foundation pit water barrier effect is achieved with rapid installation, high stability and strong safety.
Patent Information
- Application Number
- CN202521127221.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2035-06-04
AI Technical Summary
The existing foundation pit waterproofing device has a long construction period, is time-consuming and labor-intensive to remove, and is insufficient waterproofing ability. It is easily washed out when rainfall is heavy, and its stability and safety are poor.
The combined structure of channel steel and water barrier is adopted. The channel steel is symmetrically arranged. The water barrier is fixed on the side of its phase and is fixedly connected by steel bars and pads. The channel steel is inserted into the ground, combining the support plate and safety guardrail to improve stability and integrity.
It improves construction efficiency, has good stability, strong waterproofing ability, low collapse risk, saves material costs and is highly safe.
Smart Images

Figure CN223135161U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit support, and specifically discloses a detachable foundation pit water retaining device. Background Technique
[0002] The foundation pit water retaining device is a temporary engineering facility used to prevent rainwater from entering the foundation pit and affecting the construction. It belongs to an important part of the foundation pit enclosure structure. Its core function is to ensure the stability and safety during the foundation pit construction process through physical barriers or structural optimization, and it is widely used in fields such as construction projects, municipal engineering, transportation infrastructure, and water conservancy projects.
[0003] At present, two methods are often used for foundation pit water retaining: constructing a water retaining weir by bricklaying, stacking bricks around the foundation pit, and constructing a wall through plastering with cement mortar; constructing an earth cofferdam by piling up soil, filling with materials such as clay, sand and gravel, and block stones to form a wall, and laying an anti-seepage membrane or geotextile on the surface.
[0004] However, both of the above two methods have disadvantages: The construction period of the bricklaying method is long. After the project is completed, manual demolition of the wall is required, which is time-consuming and laborious and wastes materials; when using the piling up soil method, the earth cofferdam is easily washed away in heavy rain, and the waterproof ability and reliability are poor. Content of the Utility Model
[0005] According to the above deficiencies in the prior art, the utility model provides a detachable foundation pit water retaining device, which does not require the construction of a wall, the construction is fast, simple, has good stability and waterproof ability, low collapse risk, and high safety.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] The detachable foundation pit water retaining device includes channel steels. There are two channel steels symmetrically arranged, and the openings of the two channel steels face away from each other. Water retaining plates are fixedly arranged on the opposite sides of the two channel steels. A number of cushion plates are fixedly arranged at intervals on the upper end surfaces of the two channel steels. Reserve holes are penetrated through the middle of the number of cushion plates. Reinforcing bars are penetrated and fixedly arranged in the number of reserve holes. The number of reinforcing bars are arranged in parallel. The diameter of the reinforcing bars is adapted to the diameter of the reserve holes. The bottoms of the number of reinforcing bars are inserted into the ground.
[0008] Further, the water retaining plate includes a top plate and a bottom plate respectively arranged at the top and the bottom, and the top plate and the bottom plate are arranged in parallel.
[0009] Further, the width of the bottom plate is greater than the width of the top plate.
[0010] Further, the water retaining plate further includes vertical plates and a number of support plates. The vertical plates are fixedly connected to the opposite sides of the two channel steels. The number of support plates are evenly and fixedly arranged at intervals on the opposite sides of the two vertical plates.
[0011] Furthermore, the cross-section of the support plate is generally in a right-angled triangle structure. The lower end surface of the support plate is fixedly connected to the upper end surface of the bottom plate, and the width of the support plate is adapted to the width of the bottom plate.
[0012] Furthermore, the cushion plate is generally in a cuboid structure. The two sides of the lower end surface of the cushion plate are respectively fixedly connected to the upper end surfaces of the two top plates.
[0013] Furthermore, there are two cushion plates, and there are also two reserved holes and steel bars provided correspondingly.
[0014] Furthermore, an anchor is fixedly arranged in the middle of the upper end surface of the cushion plate in cooperation with the steel bar. The steel bar passes through and is fixedly connected to the anchor, and the steel bar and the cushion plate are fixedly connected through the anchor.
[0015] Furthermore, a safety guardrail is fixedly arranged on the upper end surfaces of the two cushion plates, and the safety guardrail is arranged between the two steel bars.
[0016] Furthermore, the safety guardrail is located directly above the space between the two channel steels, and the width of the safety guardrail is adapted to the distance between the two steel bars.
[0017] The beneficial effects of the present utility model are as follows:
[0018] By arranging the channel steels, the present utility model can improve the efficiency of the installation construction process, is convenient for later demolition, has good stability, does not waste raw materials, and saves costs; by installing the water baffle on the opposite sides of the two channel steels, it can effectively prevent water from flowing into the foundation pit; by fixedly connecting the steel bar and the cushion plate, the channel steel can be effectively fixed, and the integrity is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a structural schematic diagram of the present utility model;
[0020] Figure 2 is the present utility model Figure 1 in the A-A cross-sectional view;
[0021] Figure 3 is a structural schematic diagram of the water baffle of the present utility model;
[0022] Figure 4 is a structural schematic diagram of the cushion plate and the reserved hole of the present utility model.
[0023] In the figure: 1, channel steel; 2, steel bar; 3, cushion plate; 4, reserved hole; 5, anchor; 6, water baffle; 7, safety guardrail; 8, top plate; 9, bottom plate; 10, vertical plate; 11, support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The present utility model will be specifically described and explained below in conjunction with the drawings.
[0025] Example 1
[0026] As Figures 1-4 shown, the detachable foundation pit water retaining device includes two channel steels 1 which are symmetrically arranged, and the openings of the two channel steels 1 face away from each other. Water retaining plates 6 are fixedly arranged on the opposite sides of the two channel steels 1. A number of cushion plates 3 are fixedly arranged at intervals on the upper end faces of the two channel steels 1. Reserved holes 4 are formed through the middle parts of the number of cushion plates 3. Steel bars 2 are penetrated and fixedly arranged in the number of reserved holes 4. The number of steel bars 2 are arranged in parallel. The diameter of the steel bars 2 is adapted to the diameter of the reserved holes 4. The bottoms of the number of steel bars 2 are inserted into the ground.
[0027] The opposite sides of the two channel steels 1 and the opposite sides of the two water retaining plates 6 are welded; by arranging the channel steels 1, the efficiency of the installation and construction process can be improved, and it is convenient for later demolition, with good stability, no waste of raw materials, and cost savings; by installing the water retaining plates 6 on the opposite sides of the two channel steels 1, water can be effectively prevented from flowing into the foundation pit; by fixedly connecting the steel bars 2 and the cushion plates 3, the channel steels 1 can be effectively fixed, and the integrity is good.
[0028] The water retaining plate 6 includes a top plate 8 and a bottom plate 9 respectively arranged at the top and the bottom, and the top plate 8 and the bottom plate 9 are arranged in parallel.
[0029] The width of the bottom plate 9 is greater than the width of the top plate 8.
[0030] Through the above settings, by arranging the top plate 8 and the bottom plate 9, and the width of the bottom plate 9 is greater than the width of the top plate 8, the stability of the water retaining plate 6 can be ensured, and further the stability of the device can be ensured.
[0031] The water retaining plate 6 further includes vertical plates 10 and a number of support plates 11. The vertical plates 10 are fixedly connected to the opposite sides of the two channel steels 1. The number of support plates 11 are evenly and fixedly arranged at intervals on the opposite sides of the two vertical plates 10.
[0032] The cross section of the support plate 11 is generally in a right triangle structure. The lower end face of the support plate 11 is fixedly connected to the upper end face of the bottom plate 9, and the width of the support plate 11 is adapted to the width of the bottom plate 9.
[0033] Through the above settings, by arranging a number of support plates 11 on the opposite sides of the two channel steels 1, and the cross section of the support plate 11 is generally in a right triangle structure, the stability of the water retaining plate 6 can be further ensured, and further the stability of the device can be ensured.
[0034] The cushion plate 3 is generally in a cuboid structure. The two sides of the lower end face of the cushion plate 3 are respectively fixedly connected to the upper end faces of the two top plates 8.
[0035] There are two cushion plates 3, and there are two reserved holes 4 and steel bars 2 which are arranged in cooperation.
[0036] An anchor 5 is fixedly arranged at the middle of the upper end surface of the backing plate 3 in cooperation with the steel bar 2. The steel bar 2 penetrates and is fixedly connected to the anchor 5, and the steel bar 2 and the backing plate 3 are fixedly connected through the anchor 5. The steel bar 2, the backing plate 3 and the anchor 5 are fixedly connected to form a whole, which can effectively fix the channel steel 1.
[0037] Safety guardrails 7 are fixedly arranged on the upper end surfaces of the two backing plates 3, and the safety guardrails 7 are arranged between the two steel bars 2.
[0038] The safety guardrails 7 are located directly above the space between the two channel steels 1, and the width of the safety guardrails 7 is adapted to the distance between the two steel bars 2.
[0039] Through the above settings, the upper end surfaces of the two backing plates 3 can provide a support platform for the safety guardrails 7, facilitating the installation of the safety guardrails 7.
Claims
1. A detachable foundation pit water retaining device, including a channel steel (1), characterized in that, There are two channel steels (1) symmetrically arranged, and the openings of the two channel steels (1) face away from each other. Water baffle plates (6) are fixedly arranged on the opposite sides of the two channel steels (1). A number of cushion plates (3) are fixedly arranged at intervals on the upper end surfaces of the two channel steels (1). Reserve holes (4) are formed through the middle parts of the number of cushion plates (3). Reinforcing bars (2) are inserted through and fixedly arranged in the number of reserve holes (4). The number of reinforcing bars (2) are arranged in parallel. The diameter of the reinforcing bars (2) is adapted to the diameter of the reserve holes (4). The bottoms of the number of reinforcing bars (2) are inserted into the ground.
2. The detachable foundation pit water retaining device according to claim 1, characterized in that, The water baffle plate (6) includes a top plate (8) and a bottom plate (9) respectively arranged at the top and the bottom, and the top plate (8) and the bottom plate (9) are arranged in parallel.
3. The detachable foundation pit water retaining device according to claim 2, wherein, The width of the bottom plate (9) is greater than the width of the top plate (8).
4. The detachable foundation pit water retaining device according to claim 3, characterized in that, The water baffle plate (6) further includes a vertical plate (10) and a number of support plates (11). The vertical plate (10) is fixedly connected to the opposite sides of the two channel steels (1). The number of support plates (11) are evenly and fixedly arranged at intervals on the opposite sides of the two vertical plates (10).
5. The detachable foundation pit water retaining device according to claim 4, wherein The cross section of the support plate (11) is in an overall right triangle structure. The lower end surface of the support plate (11) is fixedly connected to the upper end surface of the bottom plate (9), and the width of the support plate (11) is adapted to the width of the bottom plate (9).
6. The detachable foundation pit water retaining device according to claim 2, wherein The cushion plate (3) is in an overall cuboid structure. The two sides of the lower end surface of the cushion plate (3) are respectively fixedly connected to the upper end surfaces of the two top plates (8).
7. The detachable foundation pit water retaining device according to claim 1, characterized in that, There are two cushion plates (3), and there are two reserve holes (4) and two reinforcing bars (2) arranged in cooperation.
8. The detachable foundation pit water retaining device according to claim 7, characterized in that, An anchor (5) is fixedly arranged on the upper end surface of the cushion plate (3) in cooperation with the reinforcing bar (2). The reinforcing bar (2) is inserted through and fixedly connected to the anchor (5). The reinforcing bar (2) and the cushion plate (3) are fixedly connected through the anchor (5).
9. The detachable foundation pit water retaining device according to claim 7, characterized in that, A safety guardrail (7) is fixedly arranged on the upper end surfaces of the two cushion plates (3). The safety guardrail (7) is arranged between the two reinforcing bars (2).
10. The detachable foundation pit water retaining device according to claim 9, characterized in that, The safety guardrail (7) is located directly above the space between the two channel steels (1), and the width of the safety guardrail (7) is adapted to the distance between the two reinforcing bars (2).