Anti-floating anchor rod with positioning hoop and central grouting pipe

Abstract

The utility model discloses a kind of anti-floating anchor rod with positioning hoop and center grouting pipe, including grouting pipe, screwing plate, binding groove, reserved seam, positioning system, top structure, the grouting pipe top is fixedly connected with screwing plate, the binding groove is opened in grouting pipe lower outer side, three the reserved seam equidistance is opened in grouting pipe outer side, the positioning system is fixedly connected in grouting pipe interior, the top structure is fixedly connected in grouting pipe top, the utility model significantly improves the construction accuracy and reliability of anti-floating anchor rod by integrated design, specifically reflected in that positioning system adopts center grouting pipe and three positioning steel bars are fixed by welding point, outer side is tied positioning hoop, ensure that anchor rod is centered in hole and perpendicularity deviation generates, to avoid uneven grouting.

Description

Technical Field

[0001] This utility model relates to an anti-buoyancy anchor rod with a positioning hoop and a central grouting pipe. Background Technology

[0002] Traditional anti-buoyancy anchor bolt construction often suffers from problems such as insufficient anchor bolt positioning accuracy, grouting pipe misalignment, and inadequate waterproofing joint treatment.

[0003] Specifically, the problems include: the anchor bolt body is difficult to keep centered in the hole, resulting in uneven grouting; the insertion depth of the grouting pipe is not accurately controlled, affecting the grout diffusion effect; in addition, there is a risk of leakage at the joint between the anchor bolt head and the waterproof membrane of the foundation slab, and the lack of a standardized positioning system leads to low construction efficiency and poor quality stability. Utility Model Content

[0004] The purpose of this invention is to provide an anti-buoyancy anchor rod with a positioning hoop and a central grouting pipe to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An anti-buoyancy anchor bolt with a positioning hoop and a central grouting pipe includes a grouting pipe, a swivel plate, a binding groove, a reserved joint, a positioning system, and a top structure. The swivel plate is fixedly connected to the top of the grouting pipe. The binding groove is opened on the lower outer side of the grouting pipe. Three reserved joints are equidistantly opened on the outer side of the grouting pipe. The positioning system is fixedly connected to the inside of the grouting pipe. The top structure is fixedly connected to the top of the grouting pipe.

[0006] Based on the above technical solution, the positioning system includes a central grout pipe, positioning reinforcing bars, welding points, and positioning hoops. Three positioning reinforcing bars are fixedly connected at equal intervals on the outside of the central grout pipe. Multiple welding points are welded at equal intervals between the three positioning reinforcing bars. The positioning hoops are tied to the outside of the three positioning reinforcing bars.

[0007] Based on the above technical solution, the top structure includes a foundation plate, waterproof membrane, ground screws, anchor head outlet pipes, and a standardized mold. The top of the foundation plate is covered with waterproof membrane, and four ground screws are bolted to the top of the foundation plate. The anchor head outlet pipes are located in the center of the foundation plate, and the standardized molds are installed on the outside of the anchor head outlet pipes.

[0008] Compared with existing technologies, this utility model has the following advantages: Through integrated design, it significantly improves the construction accuracy and reliability of anti-buoyancy anchors. Specifically, the positioning system uses a central grout pipe and three positioning steel bars fixed by welding points, with external positioning hoops to ensure the anchor is centered in the hole and prevents vertical deviation, thus avoiding uneven grouting. The grouting pipe, combined with pre-reserved joints, allows grout to be evenly injected from the bottom of the hole upwards, effectively filling the gaps in the hole wall. The top structure, through the synergistic effect of the foundation plate, waterproof membrane, ground screws, and anchor head exposed pipe, forms a seamless waterproof seal, completely solving the leakage risks of traditional anchor heads. Simultaneously, the swivel plate and binding groove simplify the installation process, improve construction efficiency, and reduce human error. These improvements collectively ensure that the anchor's pull-out force characteristic value meets the standard requirements and satisfies the durability and stability requirements of Class A anti-buoyancy engineering projects. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the appearance and structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the positioning system structure of this utility model.

[0011] Figure 3 This is a schematic diagram of the top structure of this utility model.

[0012] In the diagram: 1. Grouting pipe, 2. Screw-in plate, 3. Binding groove, 4. Reserved joint, 5. Positioning system, 6. Top structure, 7. Central grouting pipe, 8. Positioning reinforcement, 9. Welding point, 10. Positioning hoop, 11. Foundation slab, 12. Waterproof membrane, 13. Ground screw, 14. Anchor head exposed pipe, 15. Standardized mold. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1-3 As shown, an anti-buoyancy anchor rod with a positioning hoop and a central grouting pipe includes a grouting pipe 1, a swivel plate 2, a binding groove 3, a reserved joint 4, a positioning system 5, and a top structure 6. The swivel plate 2 is fixedly connected to the top of the grouting pipe 1. The binding groove 3 is opened on the lower outer side of the grouting pipe 1. The three reserved joints 4 are equidistantly opened on the outer side of the grouting pipe 1. The positioning system 5 is fixedly connected to the inside of the grouting pipe 1. The top structure 6 is fixedly connected to the top of the grouting pipe 1.

[0015] The positioning system 5 includes a central grout pipe 7, positioning steel bars 8, welding points 9, and positioning hoops 10. Three positioning steel bars 8 are fixedly connected at equal intervals to the outside of the central grout pipe 7. Multiple welding points 9 are welded at equal intervals between the three positioning steel bars 8. The positioning hoops 10 are tied to the outside of the three positioning steel bars 8.

[0016] The top structure 6 includes a foundation plate 11, a waterproof membrane 12, ground screws 13, an anchor head outlet pipe 14, and a standardized mold 15. The foundation plate 11 is covered with a waterproof membrane 12. Four ground screws 13 are bolted to the top of the foundation plate 11. The anchor head outlet pipe 14 is located at the center inside the foundation plate 11. The standardized mold 15 is installed on the outside of the anchor head outlet pipe 14.

[0017] The working principle of this utility model is as follows: During construction, the anchor rod body is first accurately lowered into the borehole through the positioning system (5), the central grout pipe (7) is connected to the grouting equipment, and the grout is injected from the bottom of the hole upwards, filling the gap of the hole wall through the reserved gap (4); after the grouting is completed, the foundation plate (11) of the top structure (6) and the waterproof membrane (12) are pressed and sealed by the ground screw (13), and the anchor head protrusion pipe (14) is reserved for later inspection; after curing for 28 days, a pull-out test is carried out to ensure that the pull-out force of the anchor rod is ≥260kN. The verticality is controlled by the positioning hoop (10) and the screw plate (2) is used to assist in fixing, realizing the integration of the anchor rod and the waterproof structure. The finished mold is accurately positioned and shaped with the anchor rod as the center, and the cement-based penetrating crystallization is applied (smoothed). Then the mold is quickly removed and the next construction is carried out. Multiple molds are constructed at the same time, which not only ensures the one-time molding qualification rate of the cement-based penetrating crystallization process, but also improves the efficiency.

[0018] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. An anti-buoyancy anchor bolt with positioning hoop and central grouting pipe, comprising grouting pipe (1), swivel plate (2), binding groove (3), reserved joint (4), positioning system (5), and top structure (6), characterized in that: The top of the grouting pipe (1) is fixedly connected to a swivel plate (2), the binding groove (3) is opened on the outside of the grouting pipe (1) below, the three reserved seams (4) are equally spaced on the outside of the grouting pipe (1), the positioning system (5) is fixedly connected inside the grouting pipe (1), and the top structure (6) is fixedly connected to the top of the grouting pipe (1).

2. The anti-buoyancy anchor bolt with positioning clamp and central grouting pipe according to claim 1, characterized in that: The positioning system (5) includes a central grout pipe (7), positioning steel bars (8), welding points (9), and positioning hoops (10). Three positioning steel bars (8) are fixedly connected at equal intervals on the outside of the central grout pipe (7). Multiple welding points (9) are welded at equal intervals between the three positioning steel bars (8). The positioning hoops (10) are tied to the outside of the three positioning steel bars (8).

3. The anti-buoyancy anchor bolt with positioning clamp and central grouting pipe according to claim 1, characterized in that: The top structure (6) includes a foundation plate (11), a waterproof membrane (12), ground screws (13), an anchor head outlet pipe (14), and a standardized mold (15). The foundation plate (11) is covered with a waterproof membrane (12). Four ground screws (13) are bolted to the top of the foundation plate (11). The anchor head outlet pipe (14) is located at the center inside the foundation plate (11). The standardized mold (15) is installed on the outside of the anchor head outlet pipe (14).

Images