A kind of impermeable structure for concrete structure and concrete pier column
By setting a combined structure of geomembrane and reinforced concrete at the bottom of the concrete structure, combined with a high-pressure closed-cell plate and a sealant layer, the problem of insufficient sealing of the seepage prevention structure in the existing technology is solved, and a highly efficient seepage prevention effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHWEST ENGINEERING CORPORATION LIMITED
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, anchoring and mechanical pressing methods have gaps in the connection, and adhesives used in adhesive bonding are prone to aging and failure, resulting in insufficient sealing of the waterproof structure and easy leakage problems.
The structure employs a combination of geomembrane and reinforced concrete. The geomembrane is pressed and fixed to the bottom surface of the concrete structure by the reinforced concrete. Combined with the laying of geomembrane on the foundation and sides, high-pressure closed-hole plates and fasteners are used to ensure airtightness, and the sealing effect is improved by sealing adhesive layers and microporous air channels.
It achieves the sealing and continuity of the seepage prevention structure, avoids leakage problems, improves the overall sealing and adaptability, and ensures the waterproof and seepage prevention effect of concrete structures.
Smart Images
Figure CN224300188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-seepage structure technology, specifically to an anti-seepage structure for concrete structures and concrete piers. Background Technology
[0002] The waterproofing structure of a concrete structure is designed to prevent moisture and harmful media from penetrating the concrete, avoiding steel corrosion, freeze-thaw damage, and chemical erosion, thereby ensuring the structure's durability and safety. In modern engineering, geomembranes are often used to achieve waterproofing. This method is widely used in water conservancy projects, underground structures, bridge piers, and other applications, and is one of the core means of extending the lifespan of structures.
[0003] In related technologies, anchoring, adhesive bonding, or mechanical pressing methods are mainly used to fix geomembranes to concrete structures. However, both anchoring and mechanical pressing methods have connection gaps, and adhesives used in adhesive bonding are prone to aging and failure. Both connection gaps and adhesive aging can lead to insufficient sealing of the seepage prevention structure, which can easily cause leakage problems. Utility Model Content
[0004] The problem solved by this invention is how to ensure the sealing of the anti-seepage structure in order to avoid leakage.
[0005] To address the aforementioned problems, this utility model provides a seepage-proof structure for concrete structures and a concrete pier.
[0006] In a first aspect, this utility model provides a seepage-proof structure for concrete structures, comprising a geomembrane and reinforced concrete sequentially arranged at the bottom of the concrete structure. The geomembrane includes a base geomembrane, a side geomembrane, and a reserved geomembrane connected sequentially. The base geomembrane is used to lay on the base surface of the concrete structure, the side geomembrane is used to lay on the bottom side of the concrete structure, and the reinforced concrete is arranged around the side geomembrane. The bottom surface of the reinforced concrete abuts against the base geomembrane, and the reserved geomembrane is laid on the top surface of the reinforced concrete.
[0007] Optionally, the seepage prevention structure for concrete structures further includes a first high-pressure closed-hole plate, a second high-pressure closed-hole plate, and a fixing member. The first high-pressure closed-hole plate is disposed between the side geomembrane and the bottom side of the concrete structure. The second high-pressure closed-hole plate is disposed between the reinforced concrete and the side geomembrane. One end of the fixing member passes sequentially through the second high-pressure closed-hole plate, the side geomembrane, and the first high-pressure closed-hole plate and is connected to the concrete structure. The other end abuts against the second high-pressure closed-hole plate.
[0008] Optionally, the fastener includes an expansion bolt and a flat iron. The flat iron is disposed on the side of the second high-pressure closed-hole plate near the reinforced concrete. One end of the expansion bolt passes sequentially through the flat iron, the second high-pressure closed-hole plate, the side geomembrane, and the first high-pressure closed-hole plate, and is connected to the concrete structure. The other end abuts against the flat iron.
[0009] Optionally, the first high-pressure closed-hole plate and the second high-pressure closed-hole plate are provided with a sealing adhesive layer at both ends in the vertical direction.
[0010] Optionally, the first high-pressure closed-hole plate and the second high-pressure closed-hole plate are provided with microporous air guide grooves at both ends in the vertical direction.
[0011] Optionally, the seepage-proof structure for concrete structures further includes a plurality of reinforcing bars, some of which are inserted into the concrete structure and others into the reinforced concrete.
[0012] Optionally, the side geomembrane has a stacked geomembrane at one end near the foundation surface geomembrane.
[0013] Secondly, this utility model provides a concrete pier column, including the anti-seepage structure for concrete structures as described in the first aspect.
[0014] The beneficial effects of this utility model on the seepage prevention structure for concrete structures and concrete piers are:
[0015] By sequentially placing geomembrane and reinforced concrete at the bottom of a concrete structure, the geomembrane is pressed against the bottom surface of the concrete structure by the reinforced concrete, achieving fixation and double-layer seepage prevention, ensuring the airtightness of the seepage prevention structure. The foundation geomembrane laid on the foundation surface of the concrete structure prevents seepage from below the foundation. The side geomembrane laid on the bottom side of the concrete structure prevents seepage from the sides. The reinforced concrete surrounds the side geomembrane, with its bottom surface abutting against the foundation geomembrane, ensuring continuity of seepage prevention. Additionally, a reserved geomembrane layer laid on top of the reinforced concrete facilitates subsequent connection with the reinforced concrete during construction, improves overall airtightness and adaptability, further ensuring the airtightness of the seepage prevention structure and preventing leakage problems. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a seepage-proof structure for concrete structures provided in an embodiment of the present invention;
[0017] Figure 2 for Figure 1 Enlarged view of point A in the image.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Geomembrane; 11. Foundation surface geomembrane; 12. Side geomembrane; 13. Reserved geomembrane; 14. Stacked geomembrane; 2. Reinforced concrete; 3. Concrete structure; 31. Foundation surface; 4. First high-pressure closed-hole plate; 5. Second high-pressure closed-hole plate; 6. Fasteners; 61. Expansion bolts; 62. Flat iron; 7. Inserted reinforcing bars; 8. Sealant layer. Detailed Implementation
[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.
[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.
[0022] In the attached diagram, the Z-axis represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis representing the top and the negative direction representing the bottom; the X-axis represents the horizontal direction and is designated as the front-back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. It should be noted that the aforementioned representations of the Z-axis and X-axis are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.
[0023] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0024] To address the problems existing in the aforementioned related technologies, this utility model provides a seepage prevention structure for concrete structures and a concrete pier.
[0025] like Figure 1 As shown in the figure, an embodiment of the present invention provides a seepage prevention structure for concrete structures, including a geomembrane 1 and reinforced concrete 2 sequentially arranged at the bottom of a concrete structure 3. The geomembrane 1 includes a base surface geomembrane 11, a side surface geomembrane 12, and a reserved geomembrane 13 connected sequentially. The base surface geomembrane 11 is used to lay on the base surface 31 of the concrete structure 3. The side surface geomembrane 12 is used to lay on the bottom side of the concrete structure 3, and the reinforced concrete 2 is arranged around the side surface geomembrane 12. The bottom surface of the reinforced concrete 2 abuts against the base surface geomembrane 11, and the reserved geomembrane 13 is laid on the top surface of the reinforced concrete 2.
[0026] Specifically, geomembrane 1 uses 200g / m 3The composite geomembrane and the reinforced concrete 2 are designed according to the concrete structure 3 and the actual conditions. For example, the reinforced concrete 2 is 50cm high × 30cm thick C20 (W6F200) reinforced concrete. The concrete structure 3 can be a pier, bridge column, or other pier-like structure. The foundation surface 31 of the concrete structure 3 refers to the ground surface in contact with the concrete structure 3, such as the bottom of a lake. The geomembrane 1 and reinforced concrete 2 are sequentially installed at the bottom of the concrete structure 3, meaning that the geomembrane 1 is laid at the bottom of the concrete structure 3 first, and then the reinforced concrete 2 is installed on the outside of the geomembrane 1. The geomembrane 1 is integrally formed by connecting the foundation surface geomembrane 11, the side geomembrane 12, and the reserved geomembrane 13 in sequence. Starting from the foundation surface 31, the foundation surface geomembrane 11, the side geomembrane 12, and the reserved geomembrane 13 are laid upward along the concrete structure 3. That is, the foundation surface geomembrane 11 is laid and fixed to the foundation surface 31, and the side geomembrane 12 is laid and fixed to the bottom side of the concrete structure 3. The bottom side of the concrete structure 3 refers to the side of the concrete structure 3 that is close to the foundation surface 31 (the side opposite to the Z-axis) and in contact with the external environment. Then, reinforced concrete 2 is poured around the side geomembrane 12, and the bottom surface of the reinforced concrete 2 is made to abut against the foundation surface geomembrane 11. At the same time, the reserved geomembrane 13 is folded over so that the reserved geomembrane 13 is laid and fixed to the top surface of the reinforced concrete 2. The dimensions of the foundation geomembrane 11 and the side geomembrane 12 are set according to the actual situation and the concrete structure 3. The dimensions of the reserved geomembrane 13 are set according to the reinforced concrete 2. For example, if the dimensions of the reinforced concrete 2 are 50cm high × 30cm thick, then the length of the reserved geomembrane 13 is greater than or equal to 30cm, so that the reserved geomembrane 13 is long enough to cover the reinforced concrete 2 and ensure sealing. For example, in low-load scenarios, the reinforced concrete 2 wrapping the side geomembrane 12 can be replaced by thickened flat iron (such as -50×5) for pressing to simplify the structure.
[0027] For example, during the laying process, the foundation geomembrane 11, the side geomembrane 12, and the reserved geomembrane 13 can be laid sequentially from the foundation surface 31 upwards along the concrete structure 3. The foundation geomembrane 11 is fixed to the foundation surface 31, and the side geomembrane 12 is fixed to the bottom side of the concrete structure 3. Then, reinforced concrete 2 is poured around the side geomembrane 12, and the bottom surface of the reinforced concrete 2 is made to abut against the foundation geomembrane 11. At the same time, the reserved geomembrane 13 is folded over so that it is laid on the top surface of the reinforced concrete 2.
[0028] In this embodiment, by sequentially placing the geomembrane 1 and reinforced concrete 2 at the bottom of the concrete structure 3, the geomembrane 1 can be pressed against the bottom surface of the concrete structure 3 by the reinforced concrete 2, achieving fixation and double-layer seepage prevention, ensuring the sealing of the seepage prevention structure. Then, the foundation surface geomembrane 11 is laid on the foundation surface 31 of the concrete structure 3 to prevent seepage from below the foundation surface to the concrete structure 3. The side geomembrane 12 is laid on the bottom side of the concrete structure 3 to prevent seepage from the side to the concrete structure 3. The reinforced concrete 2 is set around the side geomembrane 12, and the bottom surface of the reinforced concrete 2 abuts against the foundation surface geomembrane 11 to ensure the continuity of seepage prevention. At the same time, the reserved geomembrane 13 is laid on the top surface of the reinforced concrete 2, which can facilitate the connection with the reinforced concrete 2 in subsequent construction, improve the overall sealing and adaptability, further ensure the sealing of the seepage prevention structure, and avoid leakage problems.
[0029] Optionally, such as Figure 2 As shown, the seepage prevention structure for concrete structures also includes a first high-pressure closed-hole plate 4, a second high-pressure closed-hole plate 5, and a fixing member 6. The first high-pressure closed-hole plate 4 is used to be disposed between the side geomembrane 12 and the bottom side of the concrete structure 3. The second high-pressure closed-hole plate 5 is disposed between the reinforced concrete 2 and the side geomembrane 12. One end of the fixing member 6 passes sequentially through the second high-pressure closed-hole plate 5, the side geomembrane 12, and the first high-pressure closed-hole plate 4, and is connected to the concrete structure 3. The other end abuts against the second high-pressure closed-hole plate 5.
[0030] Specifically, starting from the foundation surface 31, after laying the foundation surface geomembrane 11 and the side geomembrane 12 upwards along the concrete structure 3, the side geomembrane 12 is pressed together using a first high-pressure closed-hole plate 4 and a second high-pressure closed-hole plate 5, and fixed by a fastener 6. The first high-pressure closed-hole plate 4 is positioned between the side geomembrane 12 and the bottom side of the concrete structure 3, and the second high-pressure closed-hole plate 5 is positioned between the reinforced concrete 2 and the side geomembrane 12. One end of the fastener 6 passes sequentially through the second high-pressure closed-hole plate 5, the side geomembrane 12, and the first high-pressure closed-hole plate 4, and connects to the concrete structure 3; the other end abuts against the second high-pressure closed-hole plate 5, thereby achieving fixation.
[0031] Optionally, as shown in Figure 2, the fastener 6 includes an expansion bolt 61 and a flat iron 62. The flat iron 62 is disposed on the side of the second high-pressure closed-hole plate 5 near the reinforced concrete 2. One end of the expansion bolt 61 passes sequentially through the flat iron 62, the second high-pressure closed-hole plate 5, the side geomembrane 12, and the first high-pressure closed-hole plate 4, and is connected to the concrete structure 3. The other end abuts against the flat iron 62.
[0032] Specifically, the fastener 6 includes expansion bolts 61 and flat iron 62. The types of expansion bolts 61 and flat iron 62 can be set according to actual conditions. For example, M6 expansion bolts or stainless steel anchors and -40×3 flat iron can be used. The flat iron 62 is located on the side of the second high-pressure closed-hole plate 5 near the reinforced concrete 2 to compact the second high-pressure closed-hole plate 5 when the expansion bolts 61 are tightened, and to protect the sealing of the bolt holes. One end of the expansion bolt 61 passes sequentially through the flat iron 62, the second high-pressure closed-hole plate 5, the side geomembrane 12, and the first high-pressure closed-hole plate 4, and connects to the concrete structure 3. The other end abuts against the flat iron 62, thereby achieving fixation after tightening. The bolt hole positions can be positioned using a robotic arm to improve installation accuracy and efficiency.
[0033] Optionally, such as Figure 1 As shown in Figure 2, the first high-pressure closed-hole plate 4 and the second high-pressure closed-hole plate 5 are provided with a sealing layer 8 at both ends in the vertical direction.
[0034] Specifically, after the foundation surface geomembrane 11 and the side geomembrane 12 are pressed together using the first high-pressure closed-hole plate 4 and the second high-pressure closed-hole plate 5, and fixed with the fasteners 6, sealant is applied to the joints and the two ends of the first high-pressure closed-hole plate 4 and the second high-pressure closed-hole plate 5 in the vertical direction to form a sealant layer 8. The thickness of the sealant layer 8 must be greater than or equal to 2 cm, and the material of the sealant layer 8 can be selected according to the actual situation, for example, polyurethane sealant or silicone sealant. Here, "vertical direction" refers to the vertical direction, i.e., the Z-axis direction, and "two ends of the vertical direction" refers to the two ends of the vertical direction, i.e., the two ends of the Z-axis direction.
[0035] Optionally, the first high-pressure closed-hole plate 4 and the second high-pressure closed-hole plate 5 are provided with microporous air guide grooves at both ends in the vertical direction.
[0036] Specifically, the first high-pressure closed-hole plate 4 and the second high-pressure closed-hole plate 5 are provided with microporous air guide grooves at both ends in the vertical direction. After sealing with sealant, the air in the sealant layer 8 is discharged through the microporous air guide grooves, thereby improving the sealing performance. Here, the vertical direction refers to the vertical direction, that is, the Z-axis direction, and the two ends in the vertical direction refer to the two ends in the vertical direction, that is, the two ends in the Z-axis direction.
[0037] Optionally, such as Figure 1 As shown, the seepage prevention structure for concrete structures also includes a plurality of reinforcing bars 7, some of which are inserted into the concrete structure 3 and others into the reinforced concrete 2.
[0038] Specifically, multiple reinforcing bars 7 can be Φ12 "7" type reinforcing bars. Starting from the foundation surface 31, after laying the foundation surface geomembrane 11 and side geomembrane 12 upward along the concrete structure 3, a part of the reinforcing bar 7 is inserted into the concrete structure 3. The insertion depth must be greater than or equal to 15cm, and a φ8 steel mesh (20cm×20cm spacing) is set. The other part of the reinforcing bar 7 and the φ8 steel mesh are used for pouring to obtain reinforced concrete 2.
[0039] Optionally, such as Figure 1 As shown, the side geomembrane 12 has a stacked geomembrane 14 at one end near the foundation surface geomembrane 11.
[0040] Specifically, the side geomembrane 12 is provided with a stacked geomembrane 14 at one end near the foundation surface geomembrane 11. The stacked geomembrane 14 is made up of geomembranes of a preset length. The preset length can be set according to the actual situation, such as 50cm, to ensure the extensibility of the side geomembrane 12 and to prevent the side geomembrane 12 from being stretched during the pouring of reinforced concrete 2, settlement of reinforced concrete 2, or ground vibration, thereby ensuring the sealing performance.
[0041] For example, during installation, the base geomembrane 11, the side geomembrane 12, and the reserved geomembrane 13 are laid sequentially from the base surface 31 upwards along the concrete structure 3. The base geomembrane 11 is fixed to the base surface 31, and the side geomembrane 12 is fixed to the bottom side of the concrete structure 3. The side geomembrane 12 is then pressed tightly using the first high-pressure closed-hole plate 4 and the second high-pressure closed-hole plate 5, and fixed with the fastener 6. Then, a portion of the reinforcing bar 7 is inserted into the concrete structure 3, with the insertion depth being greater than or equal to the required depth. The concrete is 15cm thick and φ8 steel mesh (20cm×20cm spacing) is set. The concrete is poured through the other part of the reinforcing bar 7 and the φ8 steel mesh to obtain reinforced concrete 2. Then, the reserved geomembrane 13 is laid on the top surface of the reinforced concrete 2. The joints and the two ends of the first high pressure closed hole plate 4 and the second high pressure closed hole plate 5 in the vertical direction are sealed with sealant to form a sealant layer 8. Finally, the air in the sealant layer 8 is discharged through the microporous air guide grooves of the first high pressure closed hole plate 4 and the second high pressure closed hole plate 5.
[0042] This utility model provides a concrete pier column, including the seepage prevention structure for concrete structures as described above.
[0043] The beneficial effects of the concrete pier column in this embodiment compared to the prior art are the same as those of the above-mentioned anti-seepage structure for concrete structures, and will not be repeated here.
[0044] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A seepage-proof structure for concrete structures, characterized in that, The structure includes a geomembrane (1) and reinforced concrete (2) sequentially arranged at the bottom of a concrete structure (3). The geomembrane (1) includes a base geomembrane (11), a side geomembrane (12), and a reserved geomembrane (13) sequentially connected. The base geomembrane (11) is used to lay on the base surface (31) of the concrete structure (3). The side geomembrane (12) is used to lay on the bottom side of the concrete structure (3). The reinforced concrete (2) is arranged around the side geomembrane (12). The bottom surface of the reinforced concrete (2) abuts against the base geomembrane (11). The reserved geomembrane (13) is laid on the top surface of the reinforced concrete (2).
2. The seepage-proof structure for concrete structures according to claim 1, characterized in that, It also includes a first high-pressure closed-hole plate (4), a second high-pressure closed-hole plate (5), and a fastener (6). The first high-pressure closed-hole plate (4) is used to be disposed between the side geomembrane (12) and the bottom side of the concrete structure (3). The second high-pressure closed-hole plate (5) is disposed between the reinforced concrete (2) and the side geomembrane (12). One end of the fastener (6) passes through the second high-pressure closed-hole plate (5), the side geomembrane (12), and the first high-pressure closed-hole plate (4) in sequence and is connected to the concrete structure (3). The other end abuts against the second high-pressure closed-hole plate (5).
3. The seepage-proof structure for concrete structures according to claim 2, characterized in that, The fastener (6) includes an expansion bolt (61) and a flat iron (62). The flat iron (62) is located on the side of the second high-pressure closed-hole plate (5) near the reinforced concrete (2). One end of the expansion bolt (61) passes through the flat iron (62), the second high-pressure closed-hole plate (5), the side geomembrane (12), and the first high-pressure closed-hole plate (4) in sequence and is connected to the concrete structure (3). The other end abuts against the flat iron (62).
4. The seepage-proof structure for concrete structures according to claim 2, characterized in that, The first high-pressure closed-hole plate (4) and the second high-pressure closed-hole plate (5) are provided with a sealing adhesive layer (8) at both ends in the vertical direction.
5. The seepage-proof structure for concrete structures according to claim 4, characterized in that, The first high-pressure closed-hole plate (4) and the second high-pressure closed-hole plate (5) are provided with microporous air guide grooves at both ends in the vertical direction.
6. The seepage-proof structure for concrete structures according to claim 1, characterized in that, It also includes a plurality of reinforcing bars (7), one part of which is used to be inserted into the concrete structure (3) and the other part is used to be inserted into the reinforced concrete (2).
7. The seepage-proof structure for concrete structures according to claim 1, characterized in that, The side geomembrane (12) has a stacked geomembrane (14) at one end near the foundation surface geomembrane (11).
8. A concrete pier, characterized in that, Including the waterproofing structure for concrete structures as described in any one of claims 1 to 7.