Anti-leakage structure

Abstract

The utility model discloses an anti-seepage structure, which relates to the technical field of building construction, and comprises a drainage part, which comprises a diversion pipeline and a drainage pipeline which are both communicated with a cut-off groove, and the diversion pipeline is laid in a foundation pit side wall water seepage area, so that seepage water in the foundation pit side wall water seepage area is gathered through the diversion pipeline and flows into the cut-off groove; accumulated water gathered by the water intercepting groove is discharged through a water discharging pipeline; and the waterproof part comprises a steel plate curtain covering the outer side of the foundation pit side wall water seepage area, and the collapse part between the foundation pit side wall water seepage area and the steel plate curtain is filled with waterproof concrete. According to the anti-seepage structure, the drainage part discharges seepage water in time, seepage of water flow into a building is reduced, the waterproof part blocks a large amount of seepage water through the steel plate curtain, the anti-seepage structure with double barriers is formed through the synergistic effect of drainage and prevention of the drainage part and the waterproof part, and the problem that a traditional single waterproof structure is prone to failure is solved; the reliability of water seepage prevention of the anti-seepage structure is improved, and the quality of anti-seepage construction is ensured.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a leak-proof structure. Background Technology

[0002] During the construction of a certain project, when the foundation pit of the underground garage was being excavated, an unknown source of water leakage occurred on the side wall of the foundation pit support. The water flow was large and fast. Due to the influence of the water flow, the soil on the nearby side wall had collapsed, which in turn affected the construction of the waterproof guide wall and the waterproof membrane. However, because the side wall was too damp and had cavities, the construction quality of the conventional masonry waterproof guide wall could not be guaranteed.

[0003] Therefore, ensuring the quality of anti-seepage construction is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide a leak-proof structure to ensure the quality of leak-proof construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A leak-proof structure, comprising:

[0007] The drainage section includes a guide pipe and a drainage pipe, both of which are connected to the intercepting trough. The guide pipe is laid in the seepage area of ​​the foundation pit sidewall so that the seepage water in the seepage area of ​​the foundation pit sidewall flows into the intercepting trough through the guide pipe and is discharged through the drainage pipe.

[0008] The waterproof section includes a steel plate curtain covering the outside of the seepage area on the sidewall of the foundation pit, and the collapsed area between the seepage area on the sidewall of the foundation pit and the steel plate curtain is filled with waterproof concrete.

[0009] Optionally, in the above-mentioned anti-seepage structure, a water guide groove is provided in the seepage area of ​​the foundation pit sidewall, and the guide pipe is laid in the water guide groove; and / or, the diameter of the water guide groove is not less than 50mm.

[0010] Optionally, in the above-mentioned anti-leakage structure, the water interception trough is welded from steel plates.

[0011] Optionally, in the above-mentioned anti-seepage structure, the waterproof part is further provided with a fixed support column, one end of which extends into the seepage area of ​​the foundation pit sidewall, and the other end of which is connected to the steel plate curtain.

[0012] Optionally, in the above-mentioned anti-leakage structure, the fixing support is made of expansion bolts, the spacing between two adjacent expansion bolts is 650mm-750mm, and the expansion bolts are arranged in a staggered pattern.

[0013] Optionally, in the above-mentioned anti-seepage structure, the waterproof part includes a waterproof membrane, which is attached to the side of the steel curtain away from the seepage area of ​​the foundation pit sidewall.

[0014] Optionally, in the above-mentioned anti-leakage structure, the waterproof part further includes a waterproof base layer disposed between the steel plate curtain and the waterproof membrane, and the waterproof membrane is attached to the steel plate curtain through the waterproof base layer.

[0015] Optionally, in the above-mentioned anti-seepage structure, the waterproof base layer includes a wire mesh, which is welded and fixed to the steel plate curtain, and cement mortar with an interface agent is laid on the wire mesh.

[0016] Optionally, in the above-mentioned anti-seepage structure, the waterproof part is further provided with expanding foam filling the seepage area of ​​the foundation pit sidewall and the steel plate curtain, and the expanding foam is located at the bottom and side of the steel plate curtain.

[0017] Optionally, in the above-mentioned anti-seepage structure, the steel plate curtain is made of multiple steel plates welded together; and / or, the thickness of the steel plate is 2.5mm-3.5mm.

[0018] Compared with existing technologies, the anti-seepage structure provided by this utility model includes a drainage section comprising a water interception trough, a diversion pipe, and a drainage pipe. Both the diversion pipe and the drainage pipe are connected to the water interception trough. The diversion pipe is laid in the seepage area of ​​the foundation pit sidewall, allowing water leaking from this area to flow into the water interception trough. The leaked water is temporarily stored in the water interception trough, preventing it from spreading. The water interception trough is then connected to the drainage pipe, allowing water in the trough to be discharged promptly through the drainage pipe, reducing water infiltration into the building. Simultaneously, the steel of the waterproof section... The steel plate curtain covers the outside of the seepage zone on the sidewall of the foundation pit, and the collapsed area between the seepage zone and the steel plate curtain is further filled with waterproof concrete. The steel plate curtain blocks a large amount of seepage water and prevents structural damage caused by external water and soil pressure. It has high structural strength. Therefore, through the synergistic effect of drainage and waterproofing, a double-barrier seepage prevention structure is formed, which solves the problem of easy failure of traditional single waterproofing, improves the reliability of seepage prevention structure, ensures the quality of seepage prevention construction, and guarantees the construction quality of subsequent stages. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the anti-leakage structure disclosed in the embodiments of this utility model;

[0021] Figure 2 This is a schematic diagram of the anti-leakage structure disclosed in another embodiment of the present invention.

[0022] Figure label:

[0023] 100 is the steel plate curtain, 200 is the drainage pipe, 300 is the expansion bolt, 400 is the waterproof membrane, 500 is the expanding foam, and 600 is the waterproof base layer. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The core of this utility model lies in providing a seepage-proof structure to ensure the quality of seepage-proof construction.

[0030] like Figure 1 As shown in the figure, this utility model embodiment discloses a leak-proof structure, including a drainage section and a waterproof section. The drainage section includes a diversion pipe, a drainage pipe 200, and a intercepting trough. The diversion pipe and the drainage pipe 200 are connected to the intercepting trough. The diversion pipe is laid in the seepage area of ​​the foundation pit sidewall. Water seeping from the seepage area of ​​the foundation pit sidewall is collected in the intercepting trough through the diversion pipe and temporarily stored there. The water in the intercepting trough is then discharged through the drainage pipe 200. Meanwhile, the waterproofing section is equipped with a steel plate curtain 100, which is located on the outside of the foundation pit sidewall and covers the seepage area. However, if the seepage flow is large and the seepage area of ​​the foundation pit sidewall collapses, waterproof concrete is used to fill the collapsed space. This not only strengthens the structural strength of the wall and prevents further collapse, but also further improves the waterproofing effect and prevents structural damage caused by seepage. Therefore, the seepage-proof structure provided in this embodiment forms a synergistic effect of drainage and waterproofing. The drainage section reduces water seepage into the building from the source, while the waterproofing section blocks water from seeping out of the wall, forming a double barrier of drainage and waterproofing. This solves the problem of traditional single waterproofing, such as using only wall bricks as waterproof guide walls or simply laying waterproof membrane on the wall surface, which is prone to failure. It improves the reliability of the seepage-proof structure, effectively prevents leakage in the basement exterior walls, ensures the quality of seepage-proof construction, guarantees the construction quality of subsequent stages, reduces the cost of later maintenance, facilitates construction, and saves construction time.

[0031] In one specific embodiment, debris, silt, and sand in the existing seepage-affected area are first cleaned up. Then, using an electric pick or small construction machinery, a grooved drainage channel is excavated in the seepage area on the sidewall of the foundation pit. The drainage pipe used to guide the seepage to the intercepting trench is then laid in the drainage channel. This makes the laying path of the drainage pipe clear and orderly. Because the drainage pipe is laid in the drainage channel, the channel protects the drainage pipe, reducing the possibility of external damage to the drainage pipe and helping to improve the service life of the drainage pipe. Meanwhile, the diameter of the excavated water channel should not be less than 50mm, so that a larger diameter diversion pipe can be laid. For example, the diversion pipe can be made of 50mm PVC (Polyvinylchlorid) pipe, so that the diversion pipe has sufficient drainage capacity and the large amount of seepage water can be discharged into the intercepting trench in time through the diversion pipe. Of course, it is understandable that those skilled in the art can select the diameter and material parameters of the diversion pipe according to actual needs, and adjust the diameter of the excavated water channel according to the diameter of the diversion pipe.

[0032] The water interception trough in the anti-seepage structure provided in this embodiment is welded from steel plates. The water interception trough made of welded steel plates has good rigidity, high structural strength, and corrosion resistance. It is not easy to suffer structural damage during the entire construction process and later operation. It has a long service life in anti-seepage projects, ensuring that the anti-seepage structure provided in this embodiment has high reliability. The water interception trough made of welded steel plates also has excellent anti-seepage ability, thereby avoiding the problem of water temporarily stored in the water interception trough seeping out again, ensuring that the water in the water interception trough can be discharged to the outside of the wall through the drainage pipe 200.

[0033] like Figure 1 As shown, the waterproofing part also includes a fixed support column. One end of the fixed support column extends into the wall of the seepage area of ​​the foundation pit sidewall, and the fixed support column is firmly fixed to the seepage area of ​​the foundation pit sidewall. The other end is connected to the steel plate curtain 100. In this way, the steel plate curtain 100 is installed and fixed to the seepage area of ​​the foundation pit sidewall through the fixed support column, covering the seepage area of ​​the foundation pit sidewall and preventing water from continuously seeping outward.

[0034] like Figure 2As shown, the fixed supports are constructed using expansion bolts 300. One end of each expansion bolt 300, with a sleeve, is inserted into the sidewall of the foundation pit. Tightening the nut causes the sleeve to expand, increasing its diameter and firmly fixing the expansion bolt 300 to the pit sidewall. Multiple expansion bolts 300 are used, with a spacing of 650mm-750mm between adjacent bolts, arranged in a staggered pattern. This ensures a more even distribution of the bolts, effectively distributing the load and improving the overall stability of the structure. This arrangement increases the contact area between the expansion bolts 300 and the pit sidewall, as well as the steel curtain wall 100, enhancing tensile and shear strength, especially under heavy loads. The evenly distributed bolts reduce localized stress concentration, lowering the risk of structural damage. They can withstand complex loads in multiple directions, ensuring structural safety under various stress conditions. Furthermore, under dynamic loads such as earthquakes, the staggered arrangement effectively absorbs and disperses stress, enhancing seismic resistance. This arrangement also provides more adjustment space during construction, facilitating installation and subsequent maintenance. Alternatively, those skilled in the art may design other methods for fixing the support pillars, such as embedding one end of a steel bar into the side wall of the foundation pit, or using steel columns, etc., which will not be listed in this article.

[0035] The seepage-proof structure provided in this embodiment also includes a waterproof membrane 400. The waterproof membrane 400 is attached to the side of the steel curtain 100 away from the seepage area of ​​the foundation pit sidewall. The waterproof membrane 400 has good flexibility and can adapt to the deformation and cracks of the building structure. The waterproof membrane 400 further waterproofs the structure, effectively preventing leakage, effectively isolating humid air, and preventing the wall from getting damp and moldy. Moreover, the waterproof membrane 400 is simple to construct and can be laid quickly, which helps to speed up the construction of the project. The waterproof membrane 400 can be made of TPO (thermoplastic polyolefin) waterproof membrane, PVC (polyvinyl chloride) waterproof membrane, or butyl rubber waterproof membrane, etc., which will not be described in detail here.

[0036] like Figure 2 As shown, the waterproof base layer 600 between the steel curtain 100 and the waterproof membrane 400 means that the waterproof membrane 400 is bonded and fixed to the surface of the steel curtain 100 through the waterproof base layer 600. The addition of the waterproof base layer 600 between the steel curtain 100 and the waterproof membrane 400 not only further enhances the water-proofing capability of the anti-seepage structure provided in this embodiment, but also further improves the overall structural strength. Moreover, the waterproof base layer 600 makes it easier for the waterproof membrane 400 to adhere to the steel curtain 100, improving the adhesion of the waterproof base layer 600 and making it less likely to fall off.

[0037] Specifically, the waterproof base layer 600 provided in this embodiment includes a wire mesh, which is fixed to the steel curtain 100 by welding. After the wire mesh is firmly welded, cement mortar with an interface agent is applied to the wire mesh. The cement mortar evenly covers the entire wire mesh, thus forming the waterproof base layer 600. This solves the problem that the surface of the steel curtain 100 is smooth and it is not easy to stick the waterproof membrane 400, and enhances the adhesion of the waterproof membrane 400, so that the waterproof membrane 400 is firmly bonded to the steel curtain 100.

[0038] In another specific embodiment, the waterproofing section is also provided with expanding foam 500. The expanding foam 500 fills the space between the seepage area of ​​the foundation pit sidewall and the steel curtain 100. The expanding foam 500 is distributed at the bottom and sides of the steel curtain 100. By filling the edge gaps of the steel curtain 100 with expanding foam 500, the space covered by the steel curtain 100 in the seepage area of ​​the foundation pit sidewall is sealed, preventing the seeping water from seeping out of the wall along the gaps at the bottom and sides of the steel curtain 100, thus achieving a good sealing effect. In addition, the expanding foam 500 also has an adhesive and fixing function, which is beneficial to the stability of the steel curtain 100 after it is laid.

[0039] The steel plate curtain 100 of the seepage-proof structure provided in this embodiment is made of multiple welded steel plates. The manufacturing method of welding multiple steel plates reduces construction costs, and the steel plates can be sourced locally without customization, saving costs and time and improving construction efficiency. The thickness of the steel plates used is 2.5mm-3.5mm, such as 2.5mm, 2.8mm, 3mm, or 3.5mm. If the thickness of the steel plates is less than this range, the welded steel plate curtain 100 will be thin, and the overall structural strength will be insufficient, making it prone to damage during construction or later operation. If the thickness of the steel plates is greater than this range, although the welded steel plate curtain 100 has higher structural strength and meets the strength requirements of the seepage-proof structure, it increases the manufacturing cost of the steel plate curtain 100, which is not conducive to cost savings in the overall project.

[0040] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A leak-proof structure, characterized in that, include: The drainage section includes a guide pipe and a drainage pipe, both of which are connected to the intercepting trough. The guide pipe is laid in the seepage area of ​​the foundation pit sidewall so that the seepage water in the seepage area of ​​the foundation pit sidewall flows into the intercepting trough through the guide pipe and is discharged through the drainage pipe. The waterproof section includes a steel plate curtain covering the outside of the seepage area on the sidewall of the foundation pit, and the collapsed area between the seepage area on the sidewall of the foundation pit and the steel plate curtain is filled with waterproof concrete.

2. The leak-proof structure according to claim 1, characterized in that, A water guide channel is provided in the seepage zone of the foundation pit sidewall, and the guide pipe is laid in the water guide channel; and / or, the diameter of the water guide channel is not less than 50mm.

3. The leak-proof structure according to claim 1, characterized in that, The intercepting channel is welded from steel plates.

4. The leak-proof structure according to claim 1, characterized in that, The waterproof section is also equipped with a fixed support column, one end of which extends into the seepage area of ​​the foundation pit sidewall, and the other end of which is connected to the steel plate curtain.

5. The anti-leakage structure according to claim 4, characterized in that, The fixed support is made of expansion bolts, and the spacing between two adjacent expansion bolts is 650mm-750mm, and the expansion bolts are arranged in a staggered pattern.

6. The leak-proof structure according to claim 1, characterized in that, The waterproofing section includes a waterproof membrane, which is attached to the side of the steel curtain away from the seepage area of ​​the foundation pit sidewall.

7. The leak-proof structure according to claim 6, characterized in that, The waterproof section also includes a waterproof base layer disposed between the steel plate curtain and the waterproof membrane, and the waterproof membrane is attached to the steel plate curtain through the waterproof base layer.

8. The leak-proof structure according to claim 7, characterized in that, The waterproof base layer includes a wire mesh, which is welded and fixed to the steel plate curtain, and cement mortar with an interface agent is laid on the wire mesh.

9. The leak-proof structure according to claim 1, characterized in that, The waterproof section is also provided with expanding foam filling the seepage area of ​​the foundation pit sidewall and the steel plate curtain, and the expanding foam is located at the bottom and sides of the steel plate curtain.

10. The leak-proof structure according to any one of claims 1-9, characterized in that, The steel plate curtain is made of multiple steel plates welded together; and / or, the thickness of the steel plates is 2.5mm-3.5mm.

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