Temporary plugging system for multi-layer underground structure
By combining temporary blocking partition walls and automatic pressure relief systems in the underground structure, the problems of large thickness of concrete partition walls, waste of materials and difficult construction are solved, and automatic pressure relief of soil and water pressure and construction quality are achieved.
Patent Information
- Application Number
- CN202422231244.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In the existing temporary sealing system for underground structures, the concrete partition walls are relatively thick, material waste is serious and construction is difficult, making it difficult to ensure construction quality and waterproofing effect.
The temporary sealing partition wall is combined with an automatic pressure relief system. By leaving shear grooves and brick walls between the concrete partition wall and the enclosure structure, and setting drainage pipes and pressure relief components in the concrete partition wall, the automatic pressure relief system opens the total valve to relieve pressure after the construction is completed, reducing water and soil pressure.
Effectively reduce soil and water pressure, reduce partition wall thickness, save materials, reduce construction difficulty, and ensure construction quality and connection quality.
Smart Images
Figure CN223202394U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of temporary blocking of the main part of underground structure, specifically relates to a temporary blocking system for multi-layer underground structure Background Art
[0002] At present, underground projects are generally constructed and operated in phases. The first operational section is often constructed earlier, and the later operational section cannot be constructed simultaneously with the first operational section due to various reasons. The first construction section needs to reserve connection conditions for the later construction section. At the same time, to prevent water and soil from invading the first construction section and affecting operation, temporary retaining walls need to be set up at the first and second construction sections to resist water and soil pressure on the soil side. Currently, most temporary retaining walls are simple concrete walls, set close to the outer retaining structure. For underground multi-story structures, temporary concrete walls are set thicker to resist external water and soil pressure, and more concrete and steel are used. During the later construction of the structure, more chiseling is required and construction is difficult, which wastes materials and makes it difficult to ensure construction quality. It is easy to cause water leakage and safety hazards at the interfaces of short-term and long-term structures.
[0003] Therefore, it is very necessary to develop a temporary sealing system for underground multi-layer structures that can reduce external water pressure and thus thin the concrete temporary sealing partition wall, save materials, reduce the difficulty of later construction drawings, and ensure the quality of later construction. Summary of the Invention
[0004] The utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a temporary blocking system for a multi-layer underground structure.
[0005] The technical solution adopted by the present invention to solve this problem is:
[0006] A temporary blocking system for a multi-layer underground structure, comprising a temporary blocking partition wall and an automatic pressure relief system, wherein:
[0007] Temporary blocking partition wall, which includes a concrete partition wall set up at the end of the previous construction for temporary blocking, with a certain distance reserved between the concrete partition wall and the surrounding structure for setting the shear groove of the layer plate, and a brick wall set in the gap between the concrete partition wall and the surrounding structure;
[0008] The automatic pressure relief system comprises a drainage pipe which penetrates a concrete partition wall and ends at the inside of a brick wall, wherein a pressure relief assembly is arranged on the drainage pipe.
[0009] In the above technical solution, the drainage pipe passes through the concrete partition wall from the interior of the temporary blocking partition wall structure in a horizontal direction and is buried in the brick wall. The end portion of the drainage pipe buried in the brick wall is provided with a sieve hole.
[0010] In the above technical solution, the specification of the sieve hole is Φ30mm@150mm.
[0011] In the above technical solution, the drainage pipe is located above the floor plate, and is arranged at a position 100 mm away from the floor plate on the concrete partition wall.
[0012] In the above technical solution, the drainage pipe is a Φ150mm steel pipe.
[0013] In the above technical solution, the drainage pipe is provided with a water-stop flange at the location of the concrete partition wall.
[0014] In the above technical solution, the water-stop flange ring is 100 mm wide and ≥8 mm thick.
[0015] In the above technical solution, the welding surface between the water-stop flange and the drain pipe is provided with water-swelling water-stop glue.
[0016] In the above technical solution, the pressure relief assembly includes a main valve, a filter cleaning plug, a pressure gauge and a pressure relief ball valve which are sequentially arranged on the drain pipe in a direction away from the temporary blocking partition wall.
[0017] In the above technical solution, the thickness of the shear groove is half the thickness of the layer plate, and the width is consistent with the width of the brick wall.
[0018] The advantages and positive effects of the utility model are:
[0019] 1. After the main structure is completed, this new system automatically releases pressure when the main valve is opened and the pressure exceeds a certain value. Once the water level outside the structure rises and the lateral water pressure exceeds the set value, the system automatically releases groundwater outside the structure, thereby reducing the water pressure that the temporary blocking wall would otherwise bear. Because the external water pressure is relieved, the temporary blocking wall can be appropriately thinned, reducing the difficulty of later structural connection and ensuring construction quality.
[0020] 2. The utility model can effectively reduce the water pressure outside the temporary structure, reduce the water and soil pressure acting on the temporary partition wall, reduce the thickness of the partition wall, reduce waste materials, save costs, reduce the difficulty of later chiseling, and ensure construction quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structures described herein and are not necessarily drawn to scale.
[0022] Figure 1 It is a structural diagram of the utility model;
[0023] The markings in the figure are: 1. Brick wall; 2. Concrete partition wall; 3. Drain pipe; 4. Sieve hole; 5. Water stop flange; 6. Shear groove; 7. Water-expanding water stop adhesive; 8. Main valve; 9. Filter cleaning plug; 10. Pressure gauge; 11. Pressure relief ball valve. DETAILED DESCRIPTION
[0024] First, it should be noted that the specific structure, features, and advantages of the present invention will be described in detail below by way of example. However, all descriptions are for illustration only and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the drawings, can still be combined or deleted in any way between these technical features (or their equivalents), thereby obtaining more other embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplifying the drawings, the same or similar technical features may be marked in only one place in the same drawing.
[0025] In this utility model, unless otherwise specified or limited, the terms "installation", "setting", "connection", "fixation", "screw connection" and the like should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Unless otherwise specified, those skilled in the art can understand the specific meanings of the above terms in this utility model according to the specific circumstances. The utility model will be described in detail below with reference to the accompanying drawings. Example 1
[0026] A temporary blocking system for a multi-story underground structure includes a temporary blocking partition wall and an automatic pressure relief system; the temporary blocking partition wall includes a concrete partition wall 2 set at the end of the previous construction for temporary blocking, a certain distance is reserved between the concrete partition wall 2 and the surrounding structure for setting the shear groove 6 of the layer plate, and a brick wall 1 is set in the gap between the concrete partition wall 2 and the surrounding structure; the automatic pressure relief system includes a drainage pipe 3 that passes through the concrete partition wall 2 and ends at the inside of the brick wall 1, and the drainage pipe 3 is provided with a pressure relief component.
[0027] In this embodiment, the temporary blocking system for multi-layer underground structures includes a temporary blocking partition wall and an automatic pressure relief system, wherein:
[0028] The temporary blocking wall consists of a brick wall 1 and a temporary blocking concrete wall 2. Specifically, the temporary blocking concrete wall 2 is installed at the end of the previous construction phase. A waterproof protective brick wall is installed on one side of the concrete wall 2 to protect the previously constructed waterproof layer. A certain distance is reserved between the concrete wall 2 and the surrounding structure for the installation of the shear groove 6. The brick wall 1 is installed in the gap between the surrounding structure and the concrete 2 to protect the previously constructed main structure and external waterproof layer.
[0029] The automatic pressure relief system includes a drain pipe, waterstop flange, valve, steel pipe, pressure gauge, pressure relief ball valve, and filter cleaning plug. Specifically, a drain pipe 3 is installed below the concrete partition wall 2, 100 mm from the floor slab. It is typically located above the structural floor slab, but can also be located above the intermediate floor slab as needed. One side of the drain pipe 3 passes through the concrete partition wall 2, with the end embedded in the autoclaved sand-lime brick wall 1 and equipped with a sieve 4. A waterstop flange is welded to the drain pipe where it passes through the concrete partition wall 2. Water-expandable waterstop adhesive is applied to the weld surface between the flange and the drain pipe. The drain pipe 3 is a 150 mm diameter (t=5) steel pipe. A main valve 8, filter cleaning plug 9, pressure gauge 10, and automatic pressure relief ball valve 11 are installed on its upper surface.
[0030] After the main structure is completed, the main valve 8 can be opened and set to automatically release pressure when the pressure exceeds a certain value. When the water level outside the structure rises and the lateral water pressure exceeds the set value, the groundwater outside the structure is automatically released, reducing the water pressure that the temporary blocking wall should have borne. This multi-story underground structure temporary blocking system can reduce the water pressure outside the temporary blocking wall through the automatic pressure relief system, thereby optimizing the thickness of the temporary blocking wall, saving materials and reducing costs. At the same time, it also reserves shear grooves to reduce the difficulty of chiseling out the temporary blocking wall later, speeding up the project progress and ensuring the quality of the connection between the new and old structures.
[0031] Furthermore, in this embodiment, it can be considered that the drainage pipe 3 passes through the concrete partition wall 2 from the interior of the temporary blocking partition wall structure in the horizontal direction and is buried in the interior of the brick wall 1. The end portion of the drainage pipe 3 buried in the brick wall 1 is provided with a sieve hole 4, such as Figure 1 As shown, the drainage pipe 3 is buried under the concrete partition wall 2 and the autoclaved lime sand brick wall 1, and a steel pipe reserved sieve hole is set at the autoclaved lime sand brick wall 1. The specification of the sieve hole 4 is preferably 30mm in diameter and 150mm in spacing.
[0032] Furthermore, in this embodiment, it can also be considered that the drainage pipe 3 is located above the floor plate, and the drainage pipe 3 is arranged at a position of the concrete partition wall 2 100 mm away from the floor plate.
[0033] Furthermore, in this embodiment, it can also be considered that the drainage pipe 3 generally adopts a steel pipe with a diameter of 150 mm (t=5 mm), and its diameter can also be adjusted according to the surrounding groundwater level.
[0034] Furthermore, in this embodiment, it is also possible to consider burying the drainage pipe 3 under the concrete partition wall 2 and the brick wall 1, and setting a water stop flange 5 at the position of the concrete partition wall 2. The specifications of the water stop flange 5 are preferably a ring width of 100mm and a thickness ≥8mm.
[0035] Furthermore, in this embodiment, it can also be considered that the welding surface of the water stop flange 5 and the drain pipe 3 is provided with a water-swelling water stop glue 7, such as Figure 1 As shown, a water-swelling water-stop adhesive 7 is provided behind the water-stop flange 5 welded to the drain pipe 3 .
[0036] Furthermore, in this embodiment, the pressure relief assembly includes a main valve 8, a filter cleaning plug 9, a pressure gauge 10 and a pressure relief ball valve 11 which are sequentially arranged on the drain pipe 3 in a direction away from the temporary blocking wall. Figure 1 As shown, drain pipe 3 and the valve 8, filter cleaning plug 9, pressure gauge 10, and pressure relief ball valve 11 sequentially installed on drain pipe 3 within the structure constitute an automatic pressure relief system. After the main structure is completed, the main valve 8 can be opened and set to automatically release pressure when the pressure exceeds a certain level. When the water level outside the structure rises and the side water pressure exceeds the specified value, the groundwater outside the structure is automatically discharged, reducing the water pressure that the temporary blocking wall should have borne.
[0037] Furthermore, in this embodiment, it can also be considered that the shear groove 6 as the layer plate has a thickness generally half of the structural layer plate and a width consistent with the brick wall 1, generally 200 mm; its specific setting size can also be changed according to project needs. Example 2
[0038] A working method of the temporary blocking system for a multi-layer underground structure described in the first embodiment of the second embodiment is divided into a temporary blocking stage, an automatic pressure relief stage, and a temporary blocking partition wall removal stage according to the order before and after construction, wherein:
[0039] S1. In the temporary blocking stage, the following steps are included:
[0040] S101. Construction of temporary blocking partition wall
[0041] A temporary blocking concrete partition wall 2 is set up at the end of the early construction. A certain distance is reserved between the concrete partition wall 2 and the enclosure structure for setting the layer shear groove 6. A brick wall 1 is set up in the gap between the enclosure structure and the concrete partition wall 2.
[0042] S102. Construction of automatic pressure relief system
[0043] A drainage pipe 3 with a pressure relief component is installed in the temporary blocking partition wall. The drainage pipe 3 passes through the partition wall 2 and ends inside the brick wall 1.
[0044] S2. In the automatic pressure relief stage, the main valve 8 on the drainage pipe 3 can be opened and set to automatically release the pressure when the pressure exceeds a certain value. When the water pressure outside the structure exceeds the value, the groundwater outside the structure is automatically released to reduce the water pressure that the temporary blocking wall should bear;
[0045] S3. During the stage of removing the temporary blocking partition wall, the reserved layer plate shear groove 6 can reduce the difficulty of removing the temporary blocking partition wall in the later stage, thereby ensuring the connection quality of the new and old structures.
[0046] In summary, the utility model provides a multi-layer underground structure temporary sealing system that can effectively reduce the water pressure outside the temporary structure, reduce the water and soil pressure acting on the temporary partition wall, reduce the thickness of the partition wall, reduce waste materials, save costs, reduce the difficulty of later excavation, and ensure construction quality.
[0047] The above embodiments provide a detailed description of the present invention. However, the contents described are merely preferred embodiments of the present invention and should not be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of the patent application of the present invention.
Claims
1. A temporary plugging system for multi-layer underground structures, characterized by: It includes temporary blocking walls and automatic pressure relief systems, including: A temporary blocking partition wall, comprising a concrete partition wall (2) for temporary blocking set at the end of the previous construction, a certain distance between the concrete partition wall (2) and the enclosure structure for setting a shear groove (6) of the layer plate, and a brick wall (1) set in the gap between the concrete partition wall (2) and the enclosure structure; An automatic pressure relief system comprises a drainage pipe (3) that penetrates a concrete partition wall (2) and ends at the interior of a brick wall (1); a pressure relief component is provided on the drainage pipe (3).
2. A temporary blocking system for a multi-layer underground structure according to claim 1, characterized in that: The drainage pipe (3) passes through the concrete partition wall (2) from the inside of the structure in a horizontal direction and is embedded in the brick wall (1). The end portion of the drainage pipe (3) embedded in the brick wall (1) is provided with a sieve hole (4).
3. A temporary blocking system for a multi-layer underground structure according to claim 2, characterized in that: The specification of the sieve hole (4) is Φ30mm@150mm.
4. A temporary plugging system for a multi-layer underground structure according to claim 2, characterized in that: The drainage pipe (3) is located above the layer plate, and the drainage pipe (3) is arranged at a position of the concrete partition wall (2) 100 mm away from the layer plate.
5. The temporary blocking system for a multi-layer underground structure according to claim 2, characterized in that: The drainage pipe (3) is a Φ150mm steel pipe.
6. A temporary blocking system for a multi-layer underground structure according to claim 2, characterized in that: The drainage pipe (3) is provided with a water-stop flange (5) at a location located on the concrete partition wall (2).
7. A temporary blocking system for a multi-layer underground structure according to claim 6, characterized in that: The water stop flange (5) has a ring width of 100 mm and a thickness of ≥8 mm.
8. The temporary blocking system for a multi-layer underground structure according to claim 6, characterized in that: The welding surface between the water-stop flange (5) and the drainage pipe (3) is provided with a water-swelling water-stop adhesive (7).
9. A temporary blocking system for a multi-layer underground structure according to any one of claims 1 to 8, characterized in that: The pressure relief assembly comprises a main valve (8), a filter cleaning plug (9), a pressure gauge (10), and a pressure relief ball valve (11), which are sequentially arranged on the drainage pipe (3) in a direction away from the temporary blocking partition wall.
10. The temporary blocking system for a multi-layer underground structure according to claim 1, characterized in that: The thickness of the shear groove (6) is half the thickness of the layer plate, and the width is consistent with the width of the brick wall (1).