Foundation pit supporting waterproof structure and engineering prefabricated supporting structure
By designing a foundation pit support waterproof structure in deep foundation pit support, the perfect fit between the water stop baffle and the lattice column is solved, and the water leakage risk caused by the lattice column passing through the basement floor is achieved, efficient waterproofing effect is achieved, and the soil and underground buildings around the foundation pit are protected.
Patent Information
- Application Number
- CN202420743528.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-04-10
AI Technical Summary
In the deep foundation pit support, the lattice column passes through the basement floor, waterproof layer and cushion layer, resulting in a huge water leakage risk in the basement floor at the lattice column position. The prior art is difficult to fully fit the water stop baffle and lattice column, which is prone to create gaps and has a risk of water leakage.
A foundation pit support waterproof structure is designed. By connecting the end surfaces of the first lattice column and the second lattice column with the water stop baffle, the perfect fit between the water stop baffle is achieved, and a whole water stop baffle is provided between the lattice columns to avoid a large number of welds and ensure the water stop effect.
The perfect fit between the water stop baffle and the lattice column is achieved, avoiding gaps and water leakage risks, ensuring the waterproof performance of the foundation pit support structure, protecting the soil and underground buildings around the foundation pit, and enhancing the stability and bearing capacity of the structure.
Smart Images
Figure CN222782065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering waterproofing, in particular to a foundation pit supporting waterproofing structure and an engineering prefabricated supporting structure. Background Art
[0002] In the deep foundation pit support in Guangdong and other coastal areas with poor geological conditions, internal support structures are usually used. In the internal support structure, column piles need to be designed to bear the deadweight of the internal support and the upper design load. Column piles generally use lattice columns. During the basement construction process, the lattice columns need to pass through the basement floor and remain until they are removed together with the first internal support. However, since the lattice columns pass through the basement floor, waterproof layer and cushion layer, and go deep into the ground, this leads to a great risk of water leakage in the basement floor at the lattice column position, so strict waterproofing treatment is required.
[0003] In the prior art, after the internal support construction is completed, the earthwork excavation is completed, and before the bottom plate reinforcement is tied, it is necessary to weld water-stop baffles on the inside and outside of the lattice column for waterproofing. However, due to the uneven shape of the lattice column, it is difficult for the water-stop baffle to fit completely with the lattice column, which easily creates gaps and thus poses a risk of water leakage. Utility Model Content
[0004] In view of this, the utility model provides a foundation pit support waterproof structure and an engineering prefabricated support structure to solve the problem that the water stop baffle and the lattice column are difficult to fit completely together, gaps are easily generated, and there is a risk of water leakage.
[0005] In a first aspect, the utility model provides a foundation pit supporting waterproof structure, comprising:
[0006] first lattice column;
[0007] A second lattice column is spaced apart from the first lattice column;
[0008] A water stop baffle is arranged between the first lattice column and the second lattice column, one side of the water stop baffle is connected to the end face of the first lattice column, and the other side is connected to the end face of the second lattice column, the side wall of the water stop baffle protrudes from the outer surface of the first lattice column and the second lattice column, and a through hole is opened on the water stop baffle, and the through hole is arranged inside the first lattice column and the second lattice column.
[0009] Beneficial effects: This foundation pit support waterproof structure achieves perfect fit between the first lattice column and the second lattice column by connecting the end faces of the first lattice column and the second lattice column with the water stop baffle, thereby achieving continuity and integrity of the water stop baffle. In addition, a whole piece of water stop baffle is arranged between the first lattice column and the second lattice column, thereby avoiding quality problems that may exist at a large number of welds and ensuring the water stop effect. At the same time, the construction sequence of the water stop baffle is adjusted so that the fabrication and installation of the foundation pit support waterproof structure can be carried out simultaneously, thus avoiding the rust removal process and ensuring the quality and water stop effect of the foundation pit support waterproof structure.
[0010] Through holes are opened on the water stop baffle, and the through holes are arranged inside the first lattice column and the second lattice column. When concrete is injected into the grouting hole of the second lattice column, the concrete can be injected into the grouting hole of the first lattice column through the through holes.
[0011] In an optional implementation, the water stop baffle is sealedly connected to both the end surface of the first lattice column and the end surface of the second lattice column.
[0012] Beneficial effects: The water-stopping baffle is sealed and connected to the end faces of the first lattice column and the second lattice column, which can effectively prevent water leakage and ensure the waterproof performance of the foundation pit support structure, thereby protecting the soil and underground buildings around the foundation pit from water damage. At the same time, the bonding force between the water-stopping baffle and the first lattice column or the second lattice column can be enhanced, the stability and bearing capacity of the overall structure can be improved, and the risk of structural deformation or damage can be reduced.
[0013] In an optional implementation, the water stop baffle is welded to the end surface of the first lattice column and the end surface of the second lattice column.
[0014] Beneficial effects: Welding can increase the connection strength between the water stop baffle and the two lattice columns, improve the stability and bearing capacity of the overall structure, and at the same time ensure the close connection between the water stop baffle and the two lattice columns, effectively prevent water leakage, and improve the waterproof effect.
[0015] In an optional embodiment, the first lattice column and the second lattice column are coaxially arranged.
[0016] Beneficial effect: By arranging the first lattice column and the second lattice column coaxially, the first lattice column and the second lattice column can be aligned on the same axis, thereby increasing the overall stability of the structure and reducing the risk of structural deformation and damage.
[0017] In an optional embodiment, a plurality of the water stop baffles are provided at intervals along the extension direction of the first lattice column.
[0018] Beneficial effects: By setting multiple water-stop baffles at intervals, the coverage of the water-stop baffles can be effectively increased, the waterproof effect can be improved, and the possibility of water leakage can be reduced. Setting multiple water-stop baffles at intervals can also evenly distribute the water pressure to different water-stop baffles, reduce the pressure load of a single water-stop baffle, and help protect the foundation pit support structure.
[0019] In an optional embodiment, the surface where the water stop baffle is located is arranged perpendicular to the axis of the first lattice column.
[0020] Beneficial effects: Setting the water-stop baffle perpendicular to the axis of the first lattice column can effectively prevent water leakage, reduce the possibility of water seepage in the horizontal direction, and improve the water-stop effect. At the same time, the water-stop baffle is subjected to more uniform force when facing water pressure, avoiding the situation where the water-stop effect is weakened or the structure is damaged due to excessive local force.
[0021] In an optional implementation, the through hole is a circular hole, and a distance is left between the through hole and an inner wall of the first lattice column or the second lattice column.
[0022] Beneficial effect: A gap is left between the through hole and the inner wall of the first lattice column or the second lattice column to prevent moisture from rising along the inner wall of the first lattice column or the second lattice column, thereby improving the waterproof effect. Circular holes are more likely to disperse stress than holes of other shapes, avoiding stress concentration at the edge of the hole, which is beneficial to reducing the stress concentration problem of the structure.
[0023] In an optional implementation, the water stop baffle is rectangular.
[0024] Beneficial effects: The rectangular water-stop baffle is more stable than other shapes and can better withstand external water pressure or soil pressure, ensuring the stability and safety of the structure.
[0025] In an optional embodiment, it further includes a rib plate, which is arranged on the outer surface of the first lattice column or the second lattice column.
[0026] Beneficial effects: The ribbed plate is arranged on the outer surface of the first lattice column or the second lattice column to improve the bending stiffness and bearing capacity of the first lattice column or the second lattice column, and enhance the overall stability of the structure. During installation, external steel bars can be placed on the ribbed plate, which can effectively increase the bearing capacity and stability of the structure. Through the combination of steel bars and the ribbed plate, the overall force performance is improved.
[0027] In a second aspect, the utility model also provides an engineering prefabricated support structure, including a foundation pit support waterproof structure.
[0028] Beneficial effect: The prefabricated support structure of this project sets a whole water-stop baffle between the first lattice column and the second lattice column, avoiding quality problems that may exist in a large number of welds and ensuring the water-stop effect. At the same time, the construction sequence of the water-stop baffle is adjusted so that the production and installation of the foundation pit support waterproof structure can be carried out simultaneously, avoiding the rust removal process and ensuring the quality and water-stop effect of the foundation pit support waterproof structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 It is a front view of a foundation pit supporting waterproof structure in an embodiment of the utility model when the first lattice column, the second lattice column and the water stop baffle are not connected;
[0031] Figure 2 It is a front view of a foundation pit supporting waterproof structure according to an embodiment of the utility model;
[0032] Figure 3 It is a top view of a foundation pit supporting waterproof structure according to an embodiment of the utility model.
[0033] Description of reference numerals:
[0034] 1. First lattice column; 2. Second lattice column; 3. Water stop baffle; 301. Through hole. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0036] In the related art, after the internal support construction is completed, the earthwork excavation is completed, and before the bottom plate reinforcement is tied, it is necessary to weld water-stop baffles on the inside and outside of the lattice column for waterproofing. However, due to the uneven shape of the lattice column, it is difficult for the water-stop baffle to fit completely with the lattice column, which easily creates gaps and thus poses a risk of water leakage.
[0037] In order to solve the above technical problems, the following Figures 1 to 3 , describing an embodiment of the utility model.
[0038] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 3 As shown, a foundation pit supporting waterproof structure is provided, comprising a first lattice column 1, a second lattice column 2 and a water stop baffle 3.
[0039] Specifically, Figure 1 and Figure 2 As shown, the first lattice column 1 and the second lattice column 2 are arranged at an interval.
[0040] Specifically, Figures 1 to 3 As shown, the water stop baffle 3 is arranged between the first lattice column 1 and the second lattice column 2, one side of the water stop baffle 3 is connected to the end face of the first lattice column 1, and the other side is connected to the end face of the second lattice column 2, the side wall of the water stop baffle 3 protrudes from the outer surface of the first lattice column 1 and the second lattice column 2, and a through hole 301 is opened on the water stop baffle 3, and the through hole 301 is arranged inside the first lattice column 1 and the second lattice column 2.
[0041] This foundation pit supporting waterproof structure connects the end faces of the first lattice column 1 and the second lattice column 2 with the water stop baffle 3, so that the water stop baffle 3 fits perfectly with the first lattice column 1 and the second lattice column 2, and realizes the continuity and integrity of the water stop baffle 3. In addition, a whole piece of water stop baffle 3 is set between the first lattice column 1 and the second lattice column 2, which avoids quality problems that may exist in a large number of welds and ensures the water stop effect. At the same time, the construction sequence of the water stop baffle 3 is adjusted so that the foundation pit supporting waterproof structure can be manufactured and installed simultaneously, avoiding the rust removal process and ensuring the quality and water stop effect of the foundation pit supporting waterproof structure.
[0042] By opening a through hole 301 on the water stop baffle 3 and arranging the through hole 301 inside the first lattice column 1 and the second lattice column 2, when concrete is injected into the grouting hole of the second lattice column 2, the concrete can pass through the through hole 301 and be injected into the grouting hole of the first lattice column 1.
[0043] Specifically, the end face of the first lattice column 1 and the water stop baffle 3 may be connected by fasteners or by welding. In the embodiment of the present application, there is no specific restriction on the connection method between the first lattice column 1 and the water stop baffle 3. Similarly, there is no specific restriction on the connection method between the second lattice column 2 and the water stop baffle 3.
[0044] Specifically, the water stop baffle 3 can be any existing baffle as needed. For example, the water stop baffle 3 can be a water stop steel plate, etc. In the embodiment of the present application, the type of the water stop baffle 3 is not specifically limited.
[0045] Specifically, the through hole 301 may also be configured as a square hole, a triangular hole, an elliptical hole, etc. In the embodiment of the present application, no specific limitation is imposed on the shape of the through hole 301 .
[0046] In one embodiment, the water stop baffle 3 is sealedly connected to the end surface of the first lattice column 1 and the end surface of the second lattice column 2 .
[0047] The water-stop baffle plate 3 is sealed and connected to the end face of the first lattice column 1 and the end face of the second lattice column 2, which can effectively prevent water leakage and ensure the waterproof performance of the foundation pit support structure, thereby protecting the soil and underground buildings around the foundation pit from water damage. At the same time, the bonding force between the water-stop baffle plate 3 and the first lattice column 1 or the second lattice column 2 can be enhanced, the stability and bearing capacity of the overall structure can be improved, and the risk of structural deformation or damage can be reduced.
[0048] In one embodiment, the water stop baffle 3 is welded to the end surface of the first lattice column 1 and the end surface of the second lattice column 2 .
[0049] Welding can increase the connection strength between the water stop baffle 3 and the lattice column, improve the stability and bearing capacity of the overall structure, and at the same time ensure a tight connection between the water stop baffle 3 and the lattice column, effectively prevent water leakage, and improve the waterproof effect.
[0050] In one embodiment, Figure 2 As shown, the first lattice column 1 and the second lattice column 2 are coaxially arranged.
[0051] The first lattice column 1 and the second lattice column 2 are coaxially arranged so that the first lattice column 1 and the second lattice column 2 can be aligned on the same axis, thereby increasing the overall stability of the structure and reducing the risk of structural deformation and damage.
[0052] In one embodiment, a plurality of water stop baffles 3 are provided at intervals along the extension direction of the first lattice column 1 .
[0053] By setting multiple water-stop baffles 3 at intervals, the coverage of the water-stop baffles 3 can be effectively increased, the waterproof effect can be improved, and the possibility of water leakage can be reduced. Setting multiple water-stop baffles 3 at intervals can also evenly distribute the water pressure to different water-stop baffles 3, reduce the pressure load of a single water-stop baffle 3, and help protect the foundation pit support structure.
[0054] In one embodiment, Figure 2 As shown, the surface where the water stop baffle 3 is located is arranged perpendicular to the axis of the first lattice column 1 .
[0055] Setting the water stop baffle 3 perpendicular to the axis of the first lattice column 1 can effectively prevent water leakage, reduce the possibility of water seepage in the horizontal direction, and improve the water stop effect. At the same time, the water stop baffle 3 is subjected to more uniform force when facing water pressure, avoiding the situation where the water stop effect is weakened or the structure is damaged due to excessive local force.
[0056] In one embodiment, Figure 3 As shown, the through hole 301 is a circular hole, and a distance is left between the through hole 301 and the inner wall of the first lattice column 1 or the second lattice column 2 .
[0057] A gap is left between the through hole 301 and the inner wall of the first lattice column 1 or the second lattice column 2 to prevent moisture from rising along the inner wall of the first lattice column 1 or the second lattice column 2, thereby improving the waterproof effect. Circular holes are more likely to disperse stress than holes of other shapes, thus avoiding stress concentration at the edge of the hole, and thus helping to reduce the stress concentration problem of the structure.
[0058] In one embodiment, Figure 3 As shown, the water stop baffle 3 is rectangular.
[0059] The rectangular water-stop baffle 3 is more stable than other shapes and can better withstand external water pressure or soil pressure, thereby ensuring the stability and safety of the structure.
[0060] Specifically, the water stop baffle 3 can also be set to be circular, elliptical, etc. In the embodiment of the present application, the shape of the water stop baffle 3 is not specifically limited.
[0061] In one embodiment, a rib plate (not shown in the figure) is further included, and the rib plate is arranged on the outer surface of the first lattice column 1 or the second lattice column 2 .
[0062] The ribbed plate is arranged on the outer surface of the first lattice column 1 or the second lattice column 2 to improve the bending stiffness and bearing capacity of the first lattice column 1 or the second lattice column 2 and enhance the overall stability of the structure. During installation, external steel bars can be placed on the ribbed plate, which can effectively increase the bearing capacity and stability of the structure. The overall force performance is improved through the combination of steel bars and the ribbed plate.
[0063] According to an embodiment of the present utility model, on the other hand, a prefabricated engineering support structure is provided, including a foundation pit support waterproof structure.
[0064] The prefabricated support structure of this project sets a whole water-stopping baffle plate 3 between the first lattice column 1 and the second lattice column 2, avoiding quality problems that may exist in a large number of welds and ensuring the water-stopping effect. At the same time, the construction sequence of the water-stopping baffle plate 3 is adjusted so that the production and installation of the foundation pit support waterproof structure can be carried out simultaneously, avoiding the rust removal process and ensuring the quality and water-stopping effect of the foundation pit support waterproof structure.
[0065] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A foundation pit supporting waterproof structure, characterized in that: include: a first lattice column (1); A second lattice column (2) is arranged at a distance from the first lattice column (1); A water stop baffle (3) is arranged between the first lattice column (1) and the second lattice column (2); one side of the water stop baffle (3) is connected to the end face of the first lattice column (1), and the other side is connected to the end face of the second lattice column (2); the side wall of the water stop baffle (3) protrudes from the outer surface of the first lattice column (1) and the second lattice column (2); a through hole (301) is opened on the water stop baffle (3), and the through hole (301) is arranged inside the first lattice column (1) and the second lattice column (2).
2. The foundation pit supporting waterproof structure according to claim 1, characterized in that: The water stop baffle (3) is sealedly connected to the end surface of the first lattice column (1) and the end surface of the second lattice column (2).
3. The foundation pit supporting waterproof structure according to claim 2, characterized in that: The water stop baffle (3) is welded to the end surface of the first lattice column (1) and the end surface of the second lattice column (2).
4. The foundation pit supporting waterproof structure according to claim 2, characterized in that: The first lattice column (1) and the second lattice column (2) are coaxially arranged.
5. The foundation pit supporting waterproof structure according to claim 4, characterized in that: A plurality of water stop baffles (3) are arranged at intervals along the extension direction of the first lattice column (1).
6. The foundation pit supporting waterproof structure according to any one of claims 1 to 5, characterized in that: The surface where the water stop baffle (3) is located is arranged perpendicular to the axis of the first lattice column (1).
7. The foundation pit supporting waterproof structure according to any one of claims 1 to 5, characterized in that: The through hole (301) is a circular hole, and a distance is left between the through hole (301) and the inner wall of the first lattice column (1) or the second lattice column (2).
8. The foundation pit supporting waterproof structure according to any one of claims 1 to 5, characterized in that: The water stop baffle (3) is rectangular.
9. The foundation pit supporting waterproof structure according to any one of claims 1 to 5, characterized in that: It also comprises a rib plate, which is arranged on the outer surface of the first lattice column (1) or the second lattice column (2).
10. An engineering prefabricated support structure, characterized in that: include: The foundation pit supporting waterproof structure according to any one of claims 1 to 9.