Underground engineering waterproof device
By adopting a design that combines concrete retaining walls with brick masonry in the waterproofing device of underground engineering, and utilizing components such as steel mesh and structural columns, the problem of difficult dismantling of concrete walls was solved, achieving simplified dismantling and structural rationality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI PROJECT MANAGEMENT CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-05-19
AI Technical Summary
The existing waterproofing devices in underground engineering projects are difficult to dismantle in the temporary sealing measures, which makes it difficult to break down and restore the retaining wall when connecting and reconnecting them.
The structural design adopts a combination of concrete retaining walls and brick masonry, and uses steel mesh, structural columns, ring beams and other components, which are fixed and connected by wire ties to form a reasonable and compact waterproof device, reducing the difficulty of disassembly.
This simplified the dismantling process without breaking the sealed area, improving the dismantling efficiency and structural rationality of waterproofing devices in underground engineering.
Smart Images
Figure CN224259462U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building waterproofing technology, and more specifically, it relates to a waterproofing device for underground engineering. Background Technology
[0002] Underground projects are usually located below the groundwater level. Waterproofing devices can effectively prevent groundwater from seeping into the project through cracks and pores in the concrete structure, thus avoiding leakage and ensuring the normal use of the underground project. Existing waterproofing devices for underground projects often use concrete walls for waterproofing. In temporary sealing measures, when underground connections are needed later, the retaining wall of the sealed area needs to be broken down and then restored to its original position. However, concrete walls are difficult to dismantle. Therefore, a waterproofing device for underground projects is proposed. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a waterproofing device for underground engineering. The lower part uses a concrete retaining wall for waterproofing, and the upper part uses brick masonry for isolation, thereby reducing the difficulty of dismantling. This solves the problem mentioned in the background art that in temporary sealing measures, when subsequent underground connection is needed, the retaining wall of the sealed area needs to be broken down and then restored to its original position. However, concrete walls are difficult to dismantle.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproofing device for underground engineering, comprising a concrete retaining wall, a brick wall on the top surface of the concrete retaining wall, two structural columns and a ring beam inside the brick wall, two steel meshes inside the concrete retaining wall, each steel mesh including multiple vertical and horizontal bars, multiple tie bars between the two steel meshes, a first steel cage inside the structural column including four first reinforcing bars and multiple first stirrups, multiple tie bars inside the structural column, and a second steel cage inside the ring beam including four second reinforcing bars and multiple second stirrups.
[0005] As a preferred embodiment of this utility model, the plurality of vertical ribs and the plurality of horizontal ribs are arranged in a mesh structure, and the plurality of vertical ribs and the plurality of horizontal ribs are fixedly connected by tie wires.
[0006] As a preferred embodiment of this utility model, the diameter of each of the plurality of vertical ribs is 16 mm, the vertical distance between the plurality of vertical ribs is 150 mm, the diameter of each of the plurality of horizontal ribs is 12 mm, and the horizontal distance between the plurality of horizontal ribs is 200 mm.
[0007] As a preferred embodiment of this utility model, the diameter of each of the multiple tie rods is 8 mm, the vertical distance and horizontal distance of the multiple tie rods are both 600 mm, and the multiple tie rods are arranged in a quincunx pattern.
[0008] As a preferred embodiment of this utility model, the vertical distance between the plurality of first stirrups is greater than 100 mm, and the vertical distance between the plurality of first stirrups is less than 200 mm.
[0009] As a preferred embodiment of this utility model, the diameter of each of the multiple tie bars is 8 mm, the ends of the multiple tie bars are at a 180-degree angle, the vertical distance between the multiple tie bars is no more than 500 mm, and the multiple tie bars are no less than one-fifth of the brick wall length and no less than 700 mm.
[0010] As a preferred embodiment of this utility model, the vertical distance between the plurality of second stirrups is 200 mm.
[0011] This utility model provides a waterproofing device for underground engineering, which has the following beneficial effects:
[0012] The underground engineering waterproofing device uses a concrete retaining wall for waterproofing at the bottom and brick masonry for isolation at the top, which reduces the difficulty of dismantling and solves the problem that when underground connections are needed in the future, the retaining wall in the blocked area needs to be broken down and then restored to its original position. However, the concrete wall is difficult to dismantle.
[0013] 2. The waterproofing device for this underground project has a reasonable and compact structural design and good performance. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an underground engineering waterproofing device according to the present invention.
[0015] Figure 2 This is a schematic cross-sectional view (1-1) of a waterproofing device for underground engineering according to this utility model.
[0016] Figure 3 This is a schematic cross-sectional view (2-2) of a waterproofing device for underground engineering according to this utility model.
[0017] Figure 4 This is a schematic diagram of a 3-3 cross-section of an underground engineering waterproofing device according to the present invention.
[0018] In the diagram: 1. Concrete retaining wall; 2. Brick wall; 3. Structural column; 4. Ring beam; 5. Steel mesh; 51. Vertical reinforcement; 52. Horizontal reinforcement; 6. Tie bar; 7. First steel cage; 71. First main reinforcement; 72. First stirrup; 8. Tie bar; 9. Second steel cage; 91. Second main reinforcement; 92. Second stirrup. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figures 1 to 4This utility model provides a technical solution: a waterproofing device for underground engineering, including a concrete retaining wall 1, a brick wall 2 on the top surface of the concrete retaining wall 1, two structural columns 3 and a ring beam 4 inside the brick wall 2, two steel meshes 5 inside the concrete retaining wall 1, each steel mesh 5 including multiple vertical bars 51 and horizontal bars 52, multiple tie bars 6 between the two steel meshes 5, a first steel cage 7 inside the structural columns 3, the first steel cage 7 including four first reinforcing bars 71 and multiple first stirrups 72, multiple tie bars 8 inside the structural columns 3, and a second steel cage 9 inside the ring beam 4, the second steel cage 9 including four second reinforcing bars 91 and multiple second stirrups 92, the multiple vertical bars 51 and multiple horizontal bars 52 arranged in a mesh structure, and the multiple vertical bars 51 and multiple horizontal bars 52 are fixed together by wire ties. The connection is as follows: the diameter of the multiple vertical bars 51 is 16 mm, the vertical distance between the multiple vertical bars 51 is 150 mm, the diameter of the multiple horizontal bars 52 is 12 mm, the horizontal distance between the multiple horizontal bars 52 is 200 mm, the diameter of the multiple tie bars 6 is 8 mm, the vertical and horizontal distance between the multiple tie bars 6 is 600 mm, the multiple tie bars 6 are arranged in a quincunx pattern, the vertical distance between the multiple first stirrups 72 is greater than 100 mm, the vertical distance between the multiple first stirrups 72 is less than 200 mm, the diameter of the multiple tie bars 8 is 8 mm, the ends of the multiple tie bars 8 are at a 180-degree angle, the vertical distance between the multiple tie bars 8 is not greater than 500 mm, the length of the multiple tie bars 8 is not less than one-fifth of the length of the brick wall 2 and not less than 700 mm, and the vertical distance between the multiple second stirrups 92 is 200 mm.
[0023] This invention first involves laying out lines and leveling the ground, then cleaning and roughening the surface. Next, the steel mesh 5 of the concrete retaining wall 1 is tied. The first vertical reinforcement 51 starts 50mm from the edge of the concrete retaining wall 1, and the vertical reinforcement uses straight thread connections. The spacing of the vertical reinforcement is controlled to be 150mm. The first horizontal reinforcement 52 starts 50mm from the floor surface. First, ensure the spacing of the horizontal reinforcement 52 is 200 mm. The horizontal reinforcement 52 and vertical reinforcement 51 are securely tied with binding wire. The binding hooks must not be straight; use a figure-eight knot. All binding wire ends should be bent towards the inside of the wall. The horizontal reinforcement 52 is lapped. After the reinforcement mesh 5 of the concrete retaining wall 1 is tied, tie the tie bars 6. The hooks of the tie bars 6 must be hooked at the intersections of the reinforcement mesh 5, arranged in a quincunx pattern with a bi-directional spacing of 600 mm. Tie the reinforcement protective layer spacers. Use fine aggregate concrete spacers on the outside of the exterior wall, and plastic spacers on the inside of the exterior and interior walls. Secure the plastic spacers to the horizontal reinforcement 52, arranged in a quincunx pattern with a bi-directional spacing of 600 mm. Then, tie the reinforcement of the structural column 3 and ring beam 4. The four first reinforcing bars 71 and multiple first stirrups 72 of the structural column 3 are fixed with binding wire. The minimum vertical distance between the first stirrups 72 of the structural column 3 is greater than 100 mm. The maximum vertical distance between the first stirrups 72 is less than 200 mm. The reinforcement work is carried out in accordance with the existing building codes. The four second reinforcing bars 91 and multiple second stirrups 92 of the ring beam 4 are fixed by tie wire. After the reinforcement binding work of the concrete retaining wall 1, structural column 3 and ring beam 4 is completed, the formwork is erected and poured. After the concrete is cured, the brick wall 2 is built. A tie bar 8 is set along the length of every two layers of blocks. The tie bar 8 is installed by rebar planting. Grade A special rebar planting adhesive is used. The holes must be cleaned before the adhesive is injected and the rebar is planted. The planting depth is not less than 100 mm. Through the above process, the lower part is waterproofed by concrete retaining wall and the upper part is isolated by brick masonry, which reduces the difficulty of dismantling. It solves the problem that when underground connection is needed later, the retaining wall of the blocked area needs to be broken and then restored to its original position. However, the concrete wall is difficult to dismantle.
[0024] The specific usage and function of this embodiment: First, the foundation is leveled and cleaned, and then roughened. Next, the steel mesh 5 of the concrete retaining wall 1 is tied. The first vertical reinforcement 51 starts 50mm from the side of the concrete retaining wall 1, and the vertical reinforcement is connected using straight threads. The spacing of the vertical reinforcement is controlled to be 150mm. The first horizontal reinforcement 52 starts 50mm from the floor surface. First, ensure that the spacing of the horizontal reinforcement 52 is 200 mm. The horizontal reinforcement 52 and the vertical reinforcement 51 are tied firmly with binding wire. The binding knots should not be tied in a straight line, but should be tied in a figure-eight knot. All binding wire ends should be bent towards the inside of the wall. The horizontal reinforcement 52 should be lapped. After the reinforcement mesh 5 of the concrete retaining wall 1 is tied, tie the tie bar 6. The hook of the tie bar 6 must be hooked at the intersection of the reinforcement mesh 5, arranged in a quincunx pattern, with a bi-directional spacing of 600 mm. Tie the reinforcement protective layer spacers. Use fine stone concrete spacers on the outside of the outer wall, and use plastic spacers on the inside of the outer wall and the inner wall. Clip the plastic spacers onto the horizontal reinforcement 52. The spacers are arranged in a quincunx pattern with a bi-directional spacing of 600 mm.
[0025] Then, the reinforcement of the structural column 3 and the ring beam 4 is tied. The four first reinforcing bars 71 and multiple first stirrups 72 of the structural column 3 are fixed with tie wire. The minimum vertical distance between the first stirrups 72 of the structural column 3 is greater than 100 mm, and the maximum vertical distance between multiple first stirrups 72 is less than 200 mm. The reinforcement is carried out in accordance with the existing building codes. The four second reinforcing bars 91 and multiple second stirrups 92 of the ring beam 4 are fixed with tie wire.
[0026] After completing the reinforcement binding of concrete retaining wall 1, structural column 3 and ring beam 4, formwork is erected and poured. After the concrete has cured, brick wall 2 is built. A tie bar 8 is set along the length of every two layers of blocks. The tie bar 8 is installed by rebar installation. Grade A special rebar installation adhesive is used. The holes must be cleaned before the adhesive is injected and the rebar is installed. The rebar installation depth is not less than 100 mm.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A waterproofing device for underground engineering, comprising a concrete retaining wall (1), characterized in that: The top surface of the concrete retaining wall (1) is provided with a brick wall (2). Inside the brick wall (2) are two structural columns (3) and a ring beam (4). Inside the concrete retaining wall (1) are two steel meshes (5). Each of the two steel meshes (5) includes multiple vertical bars (51) and horizontal bars (52). Multiple tie bars (6) are provided between the two steel meshes (5). Inside the structural column (3) is a first steel cage (7). The first steel cage (7) includes four first reinforcing bars (71) and multiple first stirrups (72). Inside the structural column (3) are also multiple tie bars (8). Inside the ring beam (4) is a second steel cage (9). The second steel cage (9) includes four second reinforcing bars (91) and multiple second stirrups (92).
2. The waterproofing device for underground engineering according to claim 1, characterized in that: The multiple vertical ribs (51) and multiple horizontal ribs (52) are arranged in a mesh structure, and the multiple vertical ribs (51) and multiple horizontal ribs (52) are fixedly connected by tie wires.
3. The waterproofing device for underground engineering according to claim 1, characterized in that: The diameter of each of the multiple vertical ribs (51) is 16 mm, the vertical distance between the multiple vertical ribs (51) is 150 mm, the diameter of each of the multiple horizontal ribs (52) is 12 mm, and the horizontal distance between the multiple horizontal ribs (52) is 200 mm.
4. The waterproofing device for underground engineering according to claim 1, characterized in that: The diameter of each of the multiple tie rods (6) is 8 mm, the vertical distance and the horizontal distance of the multiple tie rods (6) are both 600 mm, and the multiple tie rods (6) are arranged in a plum blossom pattern.
5. The waterproofing device for underground engineering according to claim 1, characterized in that: The vertical distance between the plurality of first stirrups (72) is greater than 100 mm, and the vertical distance between the plurality of first stirrups (72) is less than 200 mm.
6. The waterproofing device for underground engineering according to claim 1, characterized in that: The diameter of each of the tie bars (8) is 8 mm. The ends of the tie bars (8) are at a 180-degree angle. The vertical distance between the tie bars (8) is no more than 500 mm. The tie bars (8) are no less than one-fifth of the length of the brick wall (2) and no less than 700 mm.
7. The waterproofing device for underground engineering according to claim 1, characterized in that: The vertical spacing between the multiple second stirrups (92) is 200 mm.