A pressure-type anti-buoyancy anchor waterproof structure
By introducing components such as a frustum-shaped water-retaining buffer sleeve, a drainage filling layer, and a waterproof rubber collar into the anti-buoyancy anchor, the problem of poor waterproofing effect of the anti-buoyancy anchor was solved, groundwater buffering and diversion and structural stability were improved, ensuring the smooth progress of the project construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ORDOS URBAN CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-26
AI Technical Summary
Existing anti-buoyancy anchors have poor waterproofing during installation, causing groundwater to gush upwards, affecting construction, and the lack of a buffer zone means that the impact force cannot be stopped.
A pressure-type anti-buoyancy anchor waterproof structure was designed, including a frustum-shaped water storage buffer sleeve, a drainage filling layer, an inclined water distribution pipe, and a waterproof rubber sleeve. Combined with reinforcing spiral bars, stable metal blocks, and bent metal plates, it forms a buffer, diversion, and sealing structure, enhancing waterproof performance and structural stability.
It effectively reduces groundwater seepage to the surface, improves waterproofing performance, enhances the anchor bolt's anti-buoyancy and tensile strength and structural stability, prevents water seepage, and ensures the smooth progress of project construction.
Smart Images

Figure CN224281260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-buoyancy anchor technology, specifically a pressure-type anti-buoyancy anchor waterproof structure. Background Technology
[0002] Anti-buoyancy anchors refer to various types of piles that resist the upward displacement of buildings. Unlike ordinary foundation piles, anti-buoyancy anchors have their own unique properties. When the depth of the building foundation is greater than the groundwater level, the building will be affected by the buoyancy of the groundwater and float up. In the existing technology, anti-buoyancy anchors are usually installed below the foundation slab to offset the vertical displacement of the building caused by buoyancy.
[0003] However, the current anchor installation has poor waterproofing effect, causing groundwater to gush upwards, affecting the construction and use of the project. In addition, there is no buffer zone in the middle for the groundwater to gush upwards, so the impact force of the groundwater gushing upwards is not blocked and the upward gushing trend cannot be stopped. Therefore, this utility model provides a pressure-type anti-buoyancy anchor waterproofing structure to meet people's needs. Utility Model Content
[0004] This utility model provides a pressure-type anti-buoyancy anchor waterproof structure, which can effectively solve the problems mentioned in the background art, such as poor waterproof effect during anchor installation, resulting in groundwater gushing upwards and affecting engineering construction and use, and the lack of a buffer zone for groundwater gushing upwards, resulting in insufficient obstruction of the impact force of groundwater gushing upwards and the inability to stop the upward gushing trend.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure-type anti-buoyancy anchor waterproof structure, comprising an underground base layer, a concrete cushion layer poured on top of the underground base layer, a waterproof layer provided on top of the concrete cushion layer, a concrete surface layer poured on top of the waterproof layer, a protective sleeve embedded inside the underground base layer, a prestressed threaded steel bar embedded inside the protective sleeve, and an anchor head fixedly connected to the top of the prestressed threaded steel bar.
[0006] A frustum-shaped water-storing buffer sleeve is fixedly installed on the outer wall of the middle part of the protective sleeve. The interior of the frustum-shaped water-storing buffer sleeve is filled with a drainage filling layer. Inclined water distribution pipes are symmetrically fixedly connected to both ends of the frustum-shaped water-storing buffer sleeve. A waterproof rubber collar is fitted onto the outer wall of the protective sleeve at the position above the frustum-shaped water-storing buffer sleeve.
[0007] Preferably, the top of the protective sleeve passes through the concrete pad, the waterproof layer and the concrete surface layer in sequence, and the waterproof rubber collar is located inside the waterproof layer.
[0008] Preferably, the frustum-shaped water storage buffer sleeve is located inside the underground base layer, and the two inclined water distribution pipes are symmetrically distributed on both sides of the protective sleeve. A seepage gap is left between the bottom end of the frustum-shaped water storage buffer sleeve and the outer wall of the protective sleeve.
[0009] Preferably, a pad is installed at the top of the protective sleeve, a reinforcing spiral rib is sleeved on the surface of the top of the protective sleeve, a connector is fixedly connected to the bottom of the protective sleeve, a conical guide cap is connected to the bottom of the connector, and a stabilizing metal block is fixedly installed on the outer wall of the protective sleeve above the waterproof rubber collar, and a clamping ring is fixedly connected to the bottom of the stabilizing metal block.
[0010] The concrete surface layer is symmetrically fitted with bent metal plates, and the bottom end of the bent metal plates is fixedly connected with a pressure plate.
[0011] Preferably, the top and bottom ends of the reinforcing spiral rib are respectively attached to the pad and the stabilizing metal block, and the bottom end of the clamping ring is pressed tightly against the surface of the waterproof rubber collar.
[0012] The reinforcing spiral bar is located inside the concrete surface layer, and the stabilizing metal block is located at the top of the waterproof layer.
[0013] Preferably, the two bent metal plates are symmetrically distributed on both sides of the protective sleeve, and the two clamping plates are respectively attached to the two ends of the top of the stabilizing metal block.
[0014] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.
[0015] 1. The system is equipped with a frustum-shaped water-storing buffer sleeve, a drainage filling layer, an inclined water distribution pipe, and a waterproof rubber collar. The frustum-shaped water-storing buffer sleeve provides a buffer zone for groundwater to flow upwards, preventing it from seeping directly upwards along the edge of the protective sleeve. The drainage filling layer provides plastic support for the frustum-shaped water-storing buffer sleeve, improving its structural strength and preventing it from being squeezed and deformed underground. Water can flow within the drainage filling layer, while the inclined water distribution pipe diverts the outflowing water, discharging it to the sides of the anchor rod and allowing it to re-infiltrate into the underground soil, significantly reducing the amount of groundwater flowing to the surface. At the same time, the waterproof rubber collar repairs and protects the waterproof layer, sealing areas damaged during anchor rod installation and improving waterproof performance.
[0016] 2. The system is equipped with a pad, reinforcing spiral ribs, a conical guide cap, a stabilizing metal block, and a clamping ring. The reinforcing spiral ribs improve the installation stability of the top of the protective sleeve, and the stabilizing metal block also plays a corresponding reinforcing role, making the overall installation and use of the anchor bolt more stable. The structural strength between the anchor bolt and the concrete surface is enhanced, reducing the chance of damage and displacement. At the same time, the clamping ring is used to compress the waterproof rubber sleeve, improving the stability of the waterproof rubber sleeve and preventing it from being squeezed and deformed, which could lead to gaps and water seepage.
[0017] 3. It is equipped with a bent metal plate and a clamping plate, which press and stabilize the metal block, resulting in a wider range of force transmission, distributed stress, and improved overall anti-buoyancy and tensile strength of the anchor rod. Attached Figure Description
[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0019] In the attached diagram:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the installation structure of the frustum-shaped water storage buffer sleeve of this utility model;
[0022] Figure 3 This is a schematic diagram of the installation structure of the connector of this utility model;
[0023] Figure 4 This is a schematic diagram of the installation structure of the waterproof rubber collar of this utility model;
[0024] The following are the labeling elements in the diagram: 1. Underground base layer; 2. Concrete cushion layer; 3. Waterproof layer; 4. Concrete surface layer; 5. Protective sleeve; 6. Prestressed threaded steel bar; 7. Anchor head; 8. Frustum-shaped water storage buffer sleeve; 9. Drainage filling layer; 10. Inclined water distribution pipe; 11. Waterproof rubber collar; 12. Pad plate; 13. Reinforcing spiral reinforcement; 14. Connector; 15. Conical guide cap; 16. Stabilizing metal block; 17. Compression ring; 18. Bending metal plate; 19. Tightening plate. Detailed Implementation
[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0026] Example: Figure 1-4As shown, this utility model provides a technical solution, a pressure-type anti-buoyancy anchor waterproof structure, including an underground base 1, a concrete cushion 2 poured on the top of the underground base 1, a waterproof layer 3 set on the top of the concrete cushion 2, a concrete surface layer 4 poured on the top of the waterproof layer 3, a protective sleeve 5 embedded in the underground base 1, the top of the protective sleeve 5 passing through the concrete cushion 2, the waterproof layer 3 and the concrete surface layer 4 in sequence, a prestressed threaded steel bar 6 embedded in the protective sleeve 5, and an anchor head 7 fixedly connected to the top of the prestressed threaded steel bar 6.
[0027] A frustum-shaped water-storing buffer sleeve 8 is fixedly installed on the outer wall of the middle part of the protective sleeve 5. The interior of the frustum-shaped water-storing buffer sleeve 8 is filled with a drainage filling layer 9, which is made of drainage stones. Inclined water distribution pipes 10 are symmetrically fixedly connected to both ends of the frustum-shaped water-storing buffer sleeve 8. The frustum-shaped water-storing buffer sleeve 8 is located inside the underground base layer 1. The two inclined water distribution pipes 10 are symmetrically distributed on both sides of the protective sleeve 5. A seepage gap is left between the bottom end of the frustum-shaped water-storing buffer sleeve 8 and the outer wall of the protective sleeve 5, allowing groundwater to enter the interior of the frustum-shaped water-storing buffer sleeve 8 through the gap when it rises. A waterproof rubber collar 11 is fitted onto the outer wall of the protective sleeve 5 above the frustum-shaped water-storing buffer sleeve 8. Inside the waterproof layer 3, a frustum-shaped water-storing buffer sleeve 8 provides a buffer zone for groundwater to flow upward, preventing groundwater from seeping directly upward along the edge of the protective sleeve 5. The drainage filling layer 9 provides plastic support for the frustum-shaped water-storing buffer sleeve 8, improving its structural strength and preventing it from being squeezed and deformed underground. Water can flow inside the drainage filling layer 9, while the inclined water distribution pipe 10 diverts the flowing water to the far sides of the anchor rod, allowing it to re-infiltrate into the underground soil, thus significantly reducing the amount of groundwater flowing to the surface. At the same time, the waterproof rubber collar 11 repairs and protects the waterproof layer 3, sealing the area damaged by the anchor rod during installation, thereby improving the waterproof performance.
[0028] A pad 12 is installed at the top of the protective sleeve 5. A reinforcing spiral rib 13 is fitted onto the surface of the top of the protective sleeve 5. A connector 14 is fixedly connected to the bottom of the protective sleeve 5. A conical guide cap 15 is connected to the bottom of the connector 14. A stabilizing metal block 16 is fixedly installed on the surface wall of the protective sleeve 5 above the waterproof rubber collar 11. The top and bottom of the reinforcing spiral rib 13 are respectively attached to the pad 12 and the stabilizing metal block 16. The bottom of the clamping ring 17 is pressed tightly against the surface of the waterproof rubber collar 11. The reinforcing spiral rib 13 is located inside the concrete surface layer 4, providing stability. The metal round block 16 is located at the top of the waterproof layer 3. The bottom end of the stabilizing metal round block 16 is fixedly connected to the clamping ring 17. The installation stability of the top of the protective sleeve 5 is improved by reinforcing the spiral rib 13, and the stabilizing metal round block 16 also plays a corresponding reinforcing role, making the anchor rod more stable when it is installed and used. The structural strength between it and the concrete surface layer 4 is enhanced, reducing the chance of damage and displacement. At the same time, the clamping ring 17 is used to press the waterproof rubber collar 11, which improves the stability of the waterproof rubber collar 11 and prevents it from being squeezed and deformed, causing gaps and water seepage.
[0029] Bending metal plates 18 are symmetrically installed inside the concrete surface layer 4. A pressure plate 19 is fixedly connected to the bottom end of the bending metal plate 18. Two bending metal plates 18 are symmetrically distributed on both sides of the protective sleeve 5. Two pressure plates 19 are respectively attached to the two ends of the top of the stabilizing metal block 16. The bending metal plates 18 and the pressure plates 19 play a role in pressing and stabilizing the stabilizing metal block 16, which has a wider range of force transmission, disperses the stress, and improves the overall anti-buoyancy and tensile strength of the anchor rod.
[0030] The working principle and usage process of this utility model: The anchor rod is inserted and installed underground, the pad plate 12 is tightly attached to the concrete surface layer 4, the prestressed threaded steel bar 6 and the stabilizing metal round block 16 are both poured inside the concrete surface layer 4, which improves the stability of the protective sleeve 5, so that the anchor rod as a whole will not move easily. Two bent metal plates 18 are symmetrically placed on both sides of the protective sleeve 5, and when placed, two clamping plates 19 are tightly attached to the top of the stabilizing metal round block 16. Thus, when the concrete surface layer 4 is poured, the bent metal plates 18 and clamping plates 19 are wrapped, which plays a role in force distribution protection for the stabilizing metal round block 16 and the anchor rod as a whole. After the anchor rod is subjected to force, the stress is transmitted. The bent metal plates 18 increase the range of stress transmission and action, thereby improving the overall anti-buoyancy and tensile strength of the anchor rod.
[0031] When the anchor rod penetrates the ground, it can easily damage the waterproof layer 3. During installation, the waterproof rubber collar 11 presses tightly against the damaged area of the waterproof layer 3, acting as a seal. The compression ring 17 is also pressed against the top of the waterproof rubber collar 11, shaping it and preventing it from being deformed after installation, thus ensuring proper sealing. As the conical guide cap 15 at the bottom of the anchor rod continues to penetrate the soil, it will reach the location of groundwater. Water will then rise along the edge gaps of the protective sleeve 5, and the frustum-shaped water-retaining buffer sleeve 8 will intercept the rising groundwater midway. When groundwater surges upward, it enters the interior of the frustum-shaped water storage buffer sleeve 8 through the seepage gap between the frustum-shaped water storage buffer sleeve 8 and the protective sleeve 5. The frustum-shaped water storage buffer sleeve 8 plays a certain buffering role for the surging groundwater, reducing the impact force of the surge. The groundwater flows inside the drainage filling layer 9, and the inclined water distribution pipe 10 plays a diversion and guiding role for the groundwater, causing it to seep downward into the underground soil of the anchor rod, thereby reducing the surge of groundwater. In addition, the waterproof rubber collar 11 also plays a waterproof role, so that the groundwater will not continuously seep to the surface.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A pressure-type anti-buoyancy anchor waterproof structure, comprising an underground base layer (1), characterized in that: The underground base (1) is topped with a concrete cushion layer (2), the top of the concrete cushion layer (2) is provided with a waterproof layer (3), the top of the waterproof layer (3) is topped with a concrete surface layer (4), a protective sleeve (5) is embedded inside the underground base (1), a prestressed threaded steel bar (6) is embedded inside the protective sleeve (5), and an anchor head (7) is fixedly connected to the top of the prestressed threaded steel bar (6). A frustum-shaped water-storing buffer sleeve (8) is fixedly installed on the outer wall of the middle part of the protective sleeve (5). A drain filling layer (9) is installed inside the frustum-shaped water-storing buffer sleeve (8). Inclined water distribution pipes (10) are symmetrically fixedly connected to both ends of the frustum-shaped water-storing buffer sleeve (8). A waterproof rubber collar (11) is sleeved on the outer wall of the protective sleeve (5) above the frustum-shaped water-storing buffer sleeve (8).
2. The pressure-type anti-buoyancy anchor waterproof structure according to claim 1, characterized in that, The top of the protective sleeve (5) passes through the concrete pad (2), the waterproof layer (3) and the concrete surface layer (4) in sequence, and the waterproof rubber collar (11) is located inside the waterproof layer (3).
3. The pressure-type anti-buoyancy anchor waterproof structure according to claim 1, characterized in that, The frustum-shaped water storage buffer sleeve (8) is located inside the underground base layer (1). The two inclined water distribution pipes (10) are symmetrically distributed on both sides of the protective sleeve (5). A seepage gap is left between the bottom end of the frustum-shaped water storage buffer sleeve (8) and the surface wall of the protective sleeve (5).
4. The pressure-type anti-buoyancy anchor waterproof structure according to claim 1, characterized in that, The top of the protective sleeve (5) is fitted with a pad (12), the surface of the top of the protective sleeve (5) is fitted with a reinforcing spiral rib (13), the bottom of the protective sleeve (5) is fixedly connected with a connector (14), the bottom of the connector (14) is connected with a conical guide cap (15), the outer wall of the protective sleeve (5) is fixedly installed with a stabilizing metal block (16) above the waterproof rubber collar (11), and the bottom of the stabilizing metal block (16) is fixedly connected with a clamping ring (17). A bent metal plate (18) is symmetrically installed inside the concrete surface layer (4), and a pressure plate (19) is fixedly connected to the bottom end of the bent metal plate (18).
5. The pressure-type anti-buoyancy anchor waterproof structure according to claim 4, characterized in that, The top and bottom ends of the reinforcing spiral rib (13) are respectively attached to the pad (12) and the stabilizing metal block (16), and the bottom end of the clamping ring (17) is pressed tightly against the surface of the waterproof rubber collar (11). The reinforcing spiral bar (13) is located inside the concrete surface layer (4), and the stabilizing metal block (16) is located at the top of the waterproof layer (3).
6. The pressure-type anti-buoyancy anchor waterproof structure according to claim 4, characterized in that, Two bent metal plates (18) are symmetrically distributed on both sides of the protective sleeve (5), and two clamping plates (19) are respectively attached to the two ends of the top of the stabilizing metal block (16).