Underground waterproof anti-floating anchor rod structure

By installing waterproof membrane, waterproof pipe and waterproof filler between the anchor pile and the anchor nut, and adding a waterproof layer between the anchor pad and the external building, the sealing problem between the anchor nut and the anchor pile is solved, and the high-efficiency waterproof effect of the anti-buoyancy anchor is achieved.

CN224325773UActive Publication Date: 2026-06-05BEIJING UNI CONSTR GRP CO LTD THIRD DEV & CONSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING UNI CONSTR GRP CO LTD THIRD DEV & CONSTR CO LTD
Filing Date
2025-06-15
Publication Date
2026-06-05

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Abstract

The utility model discloses an underground waterproof anti -floating anchor rod structure, including anchor rod stake, anchor rod backing plate and anchor rod nut, be provided with waterproof roll between anchor rod backing plate with anchor rod nut, the upper end of anchor rod stake is provided with waterproof pipe, the bottom of waterproof pipe with waterproof roll is closely abuts, waterproof filler is grouted in waterproof pipe, and waterproof filler with waterproof roll is combined. The utility model can realize the sealing between anchor rod stake and anchor rod nut to improve the overall waterproof effect of anti -floating anchor rod.
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Description

Technical Field

[0001] This utility model relates to the field of anti-buoyancy anchors, and in particular to an underground waterproof anti-buoyancy anchor structure. Background Technology

[0002] Anti-buoyancy anchors are engineering measures used to resist the buoyancy of groundwater on buildings or structures. They are commonly used in underground structures such as basements, underground garages, and subway stations, especially in areas with high groundwater levels. By connecting the structure to deeper, more stable strata, anti-buoyancy anchors effectively transfer buoyancy to these stable layers, thus preventing the structure from rising or moving due to groundwater buoyancy.

[0003] Anti-buoyancy anchors in related technologies typically include anchor piles, anchor plates, and anchor nuts. The anchor pile passes through the anchor plate, and the anchor nut is threaded onto the anchor pile. After the anchor pile is fixed to the external building, the anchor plate is placed on the anchor pile, and then the anchor nut is placed on the anchor pile and tightened to ensure that the anchor plate is in close contact with the building surface.

[0004] To improve the waterproofing effect of anchor piles, waterproof membrane is typically laid on the external structure and then placed over the anchor pad to enhance the waterproofing between the anchor nut and the anchor pad. However, the seal between the anchor nut and the anchor pile is relatively poor, posing a risk of leakage and affecting the overall waterproofing effect of the anti-buoyancy anchor, which needs improvement. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an underground waterproof and anti-buoyancy anchor structure that can improve the overall waterproof effect of the anti-buoyancy anchor.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an underground waterproof and anti-buoyancy anchor structure, including an anchor pile, an anchor pad, and an anchor nut, wherein a waterproof membrane is provided between the anchor pad and the anchor nut, a waterproof pipe is sleeved on the upper end of the anchor pile, the bottom of the waterproof pipe is tightly abutting against the waterproof membrane, and waterproof filler is injected into the waterproof pipe, and the waterproof filler is combined with the waterproof membrane.

[0007] Optionally, the bottom of the waterproof pipe is integrally formed with an annular sealing flange, and the bottom of the sealing flange is provided with an adhesive layer, which is bonded and fixed to the waterproof membrane.

[0008] Optionally, a sealing ring is fitted onto the upper end of the anchor pile. The sealing ring is located above the waterproof filler and is in close contact with the inner wall of the waterproof pipe. The sealing ring is made of a water-swellable material.

[0009] Optionally, the upper end of the anchor pile and the inner wall of the waterproof pipe are respectively provided with annular sealing grooves, and the inner and outer sides of the sealing ring are tightly inserted into the corresponding sealing grooves.

[0010] Optionally, a waterproof layer is provided between the anchor plate and the external building.

[0011] Optionally, the area of ​​the waterproof layer is larger than the area of ​​the anchor plate, and the waterproof layer is combined with the waterproof membrane.

[0012] Optionally, the edge of the anchor plate is provided with a guide slope.

[0013] In summary, this utility model has the following beneficial effects:

[0014] The anchor pile and anchor nut are sealed with sealant to improve the sealing effect and thus enhance the overall waterproof performance of the anti-buoyancy anchor. Simultaneously, a waterproof layer is installed between the anchor plate and the external building to improve the waterproof stability between the anti-buoyancy anchor and the external building. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment.

[0016] Reference numerals in the attached drawings: 1. Anchor pile; 2. Anchor pad; 3. Anchor nut; 4. Waterproof membrane; 5. Waterproof pipe; 6. Sealing flange; 7. Adhesive layer; 8. Waterproof filler; 9. Sealing ring; 10. Sealing groove; 11. Waterproof layer; 12. Guide slope. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Reference Figure 1 An underground waterproof and anti-buoyancy anchor structure includes an anchor pile 1, an anchor pad 2, and an anchor nut 3. A waterproof membrane 4 is provided between the anchor pad 2 and the anchor nut 3, that is, the surface of the external building is covered with a waterproof membrane 4, and the waterproof membrane 4 covers the anchor pad 2. In this embodiment, the waterproof membrane 4 is preferably an SBS waterproof membrane.

[0019] Reference Figure 1 The upper end of the anchor pile 1 is fitted with a PVC waterproof pipe 5. The bottom of the waterproof pipe 5 is integrally formed with an annular sealing flange 6. The bottom of the sealing flange 6 is provided with an adhesive layer 7, which is bonded and fixed to the waterproof membrane 4. At the same time, the waterproof pipe 5 is filled with waterproof filler 8, which is combined with the waterproof membrane 4. In this embodiment, the waterproof filler 8 is preferably a non-curing asphalt waterproof material, which can combine with the asphalt material in the waterproof membrane 4 to achieve waterproofing.

[0020] Reference Figure 1 A sealing ring 9 is fitted on the upper end of the anchor pile 1. The sealing ring 9 is located above the waterproof filler 8 and is in close contact with the inner wall of the waterproof pipe 5. The sealing ring 9 is made of a water-swellable material (this material is existing technology) to improve the sealing effect between the anchor pile 1 and the waterproof pipe 5.

[0021] Reference Figure 1 The upper end of the anchor pile 1 and the inner wall of the waterproof pipe 5 are respectively provided with annular sealing grooves 10, and the inner and outer sides of the sealing ring 9 are tightly inserted into the corresponding sealing grooves 10, which can improve the sealing effect between the anchor pile 1, the sealing ring 9 and the waterproof pipe 5, and also improve the connection stability between the waterproof pipe 5 and the anchor pile 1.

[0022] Reference Figure 1 A waterproof layer 11 is provided between the anchor plate 2 and the external building. In this embodiment, the external building is coated with a non-curing asphalt waterproof coating to form the waterproof layer 11. At the same time, the area of ​​the waterproof layer 11 is larger than the area of ​​the anchor plate 2, and the waterproof layer 11 is combined with the waterproof membrane 4 to improve the waterproof effect.

[0023] Reference Figure 1 The edge of the anchor plate 2 is provided with a guide slope 12 to improve the fit between the waterproof membrane 4 and the anchor plate 2, and at the same time reduce the risk of the edge of the anchor plate 2 cutting the waterproof membrane 4, so as to ensure the waterproof effect.

[0024] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. An underground waterproof and anti-buoyancy anchor structure, comprising an anchor pile (1), an anchor pad (2), and an anchor nut (3), wherein a waterproof membrane (4) is provided between the anchor pad (2) and the anchor nut (3), characterized in that: The upper end of the anchor pile (1) is fitted with a waterproof pipe (5), the bottom of the waterproof pipe (5) is in close contact with the waterproof membrane (4), the waterproof pipe (5) is filled with waterproof filler (8), and the waterproof filler (8) is combined with the waterproof membrane (4).

2. The underground waterproof and anti-buoyancy anchor structure according to claim 1, characterized in that: The bottom of the waterproof pipe (5) is integrally formed with an annular sealing flange (6), and the bottom of the sealing flange (6) is provided with an adhesive layer (7), which is bonded and fixed to the waterproof membrane (4).

3. The underground waterproof and anti-buoyancy anchor structure according to claim 1, characterized in that: The upper end of the anchor pile (1) is fitted with a sealing ring (9), which is located above the waterproof filler (8) and closely abuts against the inner wall of the waterproof pipe (5). The sealing ring (9) is made of a water-swellable material.

4. The underground waterproof and anti-buoyancy anchor structure according to claim 3, characterized in that: The upper end of the anchor pile (1) and the inner wall of the waterproof pipe (5) are respectively provided with annular sealing grooves (10), and the inner and outer sides of the sealing ring (9) are tightly inserted into the corresponding sealing grooves (10).

5. The underground waterproof and anti-buoyancy anchor structure according to claim 1, characterized in that: A waterproof layer (11) is provided between the anchor plate (2) and the external building.

6. The underground waterproof and anti-buoyancy anchor structure according to claim 5, characterized in that: The area of ​​the waterproof layer (11) is larger than the area of ​​the anchor plate (2), and the waterproof layer (11) is combined with the waterproof membrane (4).

7. The underground waterproof and anti-buoyancy anchor structure according to claim 1, characterized in that: The anchor plate (2) is provided with a guide slope (12) at the edge.