Water seepage prevention structure for hydraulic building foundation
By combining water-locking panels with multi-layer waterproofing, the single waterproofing problem of the foundation seepage prevention structure of hydraulic structures is solved, achieving multiple waterproofing and water-locking effects and improving the waterproofing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-13
AI Technical Summary
The existing foundation seepage prevention structure of hydraulic structures lacks multiple waterproof and water-locking structures during use, resulting in poor waterproofing effect and inability to lock in water in a timely manner.
The design combines water-locking boards, positioning cones, positioning columns, absorbent fiberboard, sealing rings, and multiple waterproof layers. Through positioning, sealing, and the superposition of multiple waterproof layers, it achieves rapid positioning and multiple waterproofing effects.
It achieves multiple waterproofing and water-locking functions for the foundation of hydraulic structures, improves the waterproofing effect, and avoids leakage problems.
Smart Images

Figure CN223991362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic engineering technology, specifically to a waterproof and seepage-proof structure for hydraulic engineering foundations. Background Technology
[0002] Hydraulic structures refer to various buildings and structures used for water resource management, utilization and protection. In the construction process of hydraulic structures, it is often necessary to use the foundation waterproofing structure.
[0003] A search revealed that the announcement number is CN201857617U, entitled "A Seepage Prevention Structure and Waterproof Structure for Hydraulic Structure Foundations." This seepage prevention structure includes: a reinforced concrete lower cap fastened to the top of a water-stop curtain, a reinforced concrete upper cap connected to the foundation slab of the hydraulic structure, and water-stop plates connected to the lower and upper reinforced concrete caps respectively for cutting off horizontal and vertical permeable channels. Research and analysis revealed that while this seepage prevention structure for hydraulic structure foundations has advantages, it also has the following disadvantages to some extent.
[0004] For example, the seepage prevention and waterproofing structures of hydraulic engineering foundations mentioned above usually do not have multiple waterproof and water-locking structures during use, and usually cannot lock in a small amount of water in time after leakage occurs, which may affect the waterproofing effect of the main structure. In order to solve the above technical problems, we designed a seepage prevention and waterproofing structure for hydraulic engineering foundations. Utility Model Content
[0005] The purpose of this utility model is to provide a waterproof and seepage-proof structure for the foundation of hydraulic structures, which has the advantages of multiple waterproof structures and the ability to lock in liquids that have penetrated through, thus solving the problem of poor waterproofing effect caused by a single waterproof structure and the inability to lock in water.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and seepage-proof structure for the foundation of a hydraulic structure, comprising a water-locking plate, a first plate being provided on the top of the water-locking plate, a support being cast on the top of the first plate, a drainage groove being provided on the outer side of the top of the first plate, and a second plate being provided at the bottom of the water-locking plate.
[0007] Preferably, positioning cones are welded to the four corners of the bottom of the first plate, and positioning posts that cooperate with the positioning cones are welded to the four corners of the top of the second plate.
[0008] Preferably, a connecting groove is provided on the outer side of the first plate, and the inner cavity of the connecting groove is filled with a sealing ring.
[0009] Preferably, the top four corners of the water-locking plate are provided with positioning holes for use with positioning posts, and a water-absorbing fiberboard is embedded in the top of the water-locking plate.
[0010] Preferably, the second board includes a base board, the top of which is hot-melt connected to a first waterproof layer, the top of which is sprayed with a second waterproof layer, and the top of which is hot-melt connected to a waterproof sealing coating.
[0011] Preferably, the first waterproof layer is made of HDPE waterproof board material, the second waterproof layer is made of polymer concrete mortar spraying and pouring, and the waterproof sealing coating is made of PVC waterproof roll material.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model, through the combined use of positioning posts, positioning holes, water-absorbing fiberboard, positioning cones, connecting grooves, and base plates, allows for the following steps during use: first, the second plate is fixedly installed; then, the water-locking plate is fitted onto the top of the second plate; next, the positioning cone is inserted into the inner cavity of the positioning post for quick positioning; then, sealing mortar is poured to seal the main body; and finally, a sealing ring is fitted into the inner cavity of the connecting groove to complete the sealing of the main body. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional unfolded schematic diagram of a partial structure of this utility model;
[0016] Figure 3 This is a three-dimensional exploded view of a partial structure of the present invention.
[0017] In the diagram: 1. Water-locking board; 2. Drainage channel; 3. Support component; 4. First board; 5. Sealing ring; 6. Second board; 7. Positioning post; 8. Positioning hole; 9. Water-absorbing fiberboard; 10. Positioning cone; 11. Connecting groove; 12. Base board; 13. First waterproof layer; 14. Second waterproof layer; 15. Waterproof sealing coating. Detailed Implementation
[0018] Please see Figures 1-3 The foundation waterproofing structure of the hydraulic structure includes a water-locking plate 1, a first plate 4 on the top of the water-locking plate 1, a support member 3 cast on the top of the first plate 4, and a drainage groove 2 on the outer side of the top of the first plate 4. By setting the drainage groove 2, the water on the surface of the water-locking plate 1 can be diverted to prevent it from seeping into the interior of the water-locking plate 1. A second plate 6 is set at the bottom of the water-locking plate 1.
[0019] Please see Figure 2The four corners of the bottom of the first plate 4 are welded with positioning cones 10, and the four corners of the top of the second plate 6 are welded with positioning posts 7 that cooperate with the positioning cones 10. By setting the positioning posts 7, it is easy to position the positioning cones 10 when they are inserted.
[0020] Please see Figure 3 A connecting groove 11 is provided on the outer side of the first plate 4. The inner cavity of the connecting groove 11 is filled with a sealing ring 5. By setting the sealing ring 5, the connection between the first plate 4 and the water-locking plate 1 can be sealed, thereby preventing external moisture from seeping in from the joint.
[0021] Please see Figure 2 The top four corners of the water-locking plate 1 are provided with positioning holes 8 that cooperate with the positioning posts 7, and the top of the water-locking plate 1 is embedded with a water-absorbing fiberboard 9.
[0022] Please see Figure 3 The second board 6 includes a base board 12, and a first waterproof layer 13 is hot-melt connected to the top of the base board 12. By setting the first waterproof layer 13, it can play a bidirectional superposition effect by splicing with the second waterproof layer 14, thereby improving the composite waterproof performance of the main body. The top of the first waterproof layer 13 is sprayed with the second waterproof layer 14, and the top of the second waterproof layer 14 is hot-melt connected with the waterproof sealing coating 15. By setting the waterproof sealing coating 15, external moisture can be blocked to prevent it from seeping into other structures through the second board 6.
[0023] Please see Figure 2 The first waterproof layer 13 is made of HDPE waterproof board material, the second waterproof layer 14 is made of polymer concrete mortar spraying and pouring, and the waterproof sealing coating 15 is made of PVC waterproof roll material.
[0024] In use, the user first fixes and installs the second plate 6, then puts the water-locking plate 1 on top of the second plate 6, and then inserts the positioning cone 10 into the inner cavity of the positioning column 7 to achieve a quick positioning effect. Then, the sealing mortar is poured to complete the sealing of the main body. Then, the sealing ring 5 is put into the inner cavity of the connecting groove 11 to complete the sealing of the main body. By setting the first waterproof layer 13, it can play a bidirectional superposition effect by splicing the second waterproof layer 14, thereby improving the composite waterproof performance of the main body. By setting the waterproof sealing coating 15, it can block external moisture and prevent it from seeping into other structures through the second plate 6.
[0025] In summary, this waterproofing structure for hydraulic engineering foundations, through the combined use of positioning columns 7, positioning holes 8, water-absorbing fiberboard 9, positioning cones 10, connecting grooves 11, and base plate 12, solves the problem of poor waterproofing effect caused by a single waterproofing structure and its inability to lock in water.
Claims
1. A water retaining structure for a foundation of a hydraulic construction, comprising a water retaining sheet (1), characterized in that: The top of the water locking plate (1) is provided with a first plate (4), the top of the first plate (4) is cast with a support (3), the outer side of the top of the first plate (4) is provided with a drainage groove (2), and the bottom of the water locking plate (1) is provided with a second plate (6).
2. The hydraulic structure foundation waterproof seepage structure according to claim 1, characterized in that: The four corners of the bottom of the first plate (4) are welded with positioning cones (10), and the four corners of the top of the second plate (6) are welded with positioning columns (7) used in cooperation with the positioning cones (10).
3. The hydraulic structure foundation waterproof seepage structure according to claim 1, characterized in that: The outer side of the first plate (4) is provided with a connecting groove (11), and the inner cavity of the connecting groove (11) is filled with a sealing rubber ring (5).
4. The hydraulic structure foundation waterproof seepage structure according to claim 2, characterized in that: The four corners of the top of the water locking plate (1) are provided with positioning holes (8) used in cooperation with the positioning columns (7), and the top of the water locking plate (1) is embedded with a water absorption value fiber plate (9).
5. The hydraulic structure foundation waterproof seepage structure according to claim 1, characterized in that: The second plate (6) comprises a base plate (12), the top of the base plate (12) is hot-melt connected with a first waterproof layer (13), the top of the first waterproof layer (13) is sprayed with a second waterproof layer (14), and the top of the second waterproof layer (14) is hot-melt connected with a waterproof sealing coating (15).
6. The hydraulic structure foundation waterproof seepage structure according to claim 5, characterized in that: The first waterproof layer (13) is made of HDPE waterproof plate material, the second waterproof layer (14) is made of polymer concrete mortar spraying and pouring, and the waterproof sealing coating (15) is made of PVC waterproof coiled material.