Basalt fiber reinforced polymer reinforced connection structure of a rock bolt

Abstract

The utility model discloses a kind of basalt fiber reinforcement anchorage rod reinforcing connection structure, include foundation pit, slope top, be set between foundation pit and slope top side slope, be set on the slope outer side surface layer, be connected to surface layer and stretch into the reinforcement anchorage rod rod body of slope soil body inside, be connected to one row of reinforcement anchorage rod rod body between and located inside surface layer reinforcing rib and be connected between reinforcing rib and reinforcement anchorage rod rod body adapter piece.The utility model provides the basis for being fixed to reinforcement anchorage rod rod body by the setting of reinforcing rib;By the setting of adapter piece, it is conducive to guarantee the connection of reinforcing rib and reinforcement anchorage rod rod body, wherein adapter cross section can conveniently wear and insert reinforcing rib and be fixed by adhesion layer;Adapter vertical portion is provided with adapter internal thread section inside, it is conducive to guarantee and sleeve connecting piece threaded connection, and the setting of sleeve connecting piece can thread fixing reinforcement anchorage rod rod body, so that it guarantees that on-site convenient construction and connection stability.

Description

Technical Field

[0001] This utility model relates to the field of anchor bolt reinforcement connection technology, and in particular to a basalt fiber reinforced anchor bolt reinforcement connection structure. Background Technology

[0002] In foundation pit slope construction, anchor bolts are a commonly used method for slope reinforcement. Traditional anchor bolts are fabricated using steel reinforcement and welded to the steel mesh on the slope surface. With advancements in materials technology, basalt fiber reinforced polymer (BFRP) has gradually become an important alternative to traditional steel reinforcement. BFRP offers significant advantages such as high tensile strength, strong corrosion resistance, light weight, and electromagnetic neutrality. However, the reinforcement cannot be welded to the steel mesh on the slope surface in place; it is typically fixed by binding, but binding is prone to instability. Therefore, a targeted design for the fixing and connection of basalt fiber reinforced polymer is needed. Utility Model Content

[0003] This utility model provides a basalt fiber reinforced anchor rod reinforcement connection structure to solve technical problems such as convenient installation, stable connection and reinforcement of the reinforced anchor rod body.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A basalt fiber reinforced anchor reinforcement connection structure includes a foundation pit, a slope top, a slope set between the foundation pit and the slope top, a slope surface layer set on the outer side of the slope, a reinforced anchor rod body connected to the slope surface layer and extending into the slope soil, a reinforcing bar connected between a row of reinforced anchor rod bodies and located inside the slope surface layer, and a connecting piece connecting the reinforcing bar and the reinforced anchor rod body.

[0006] The docking component is T-shaped and includes a horizontal docking part that connects to the reinforcing rib and a vertical docking part that connects to the reinforcing anchor rod body. A sleeve connector is provided between the vertical docking part and the reinforcing anchor rod body.

[0007] Furthermore, the bottom of the slope layer is located at the bottom of the foundation pit, and the top is provided with an extended section at the top of the slope, with the extended section being at least 1000mm in length; the extended section of the slope layer is fixedly connected to the slope by steel nails.

[0008] Furthermore, the slope layer comprises concrete and a steel mesh disposed within the concrete, wherein the concrete is shotcrete with a thickness of 80 mm; and the steel mesh is a two-way steel mesh.

[0009] Furthermore, the reinforcing anchor rod body is a basalt fiber composite reinforcement, and the reinforcing anchor rod body is inclined and forms a 10-degree angle with the horizontal plane; the reinforcing anchor rod bodies are spaced apart in the slope height direction; the ends of the reinforcing anchor rod bodies pass through the holes of the reinforcing steel sheets and are connected to the reinforcing bars.

[0010] Furthermore, the reinforcing rib is a basalt fiber reinforcing rib, and the diameter of the reinforcing rib is larger than the diameter of the reinforcing mesh; the reinforcing rib is disposed on the outer side of the reinforcing mesh.

[0011] Furthermore, the connecting cross section is a straight sleeve with a smooth interior. The inner diameter of the straight sleeve is larger than the outer diameter of the reinforcing rib, and the gap between the two is filled with an adhesive layer.

[0012] Furthermore, the vertical part of the mating section is a straight sleeve and the inside of the straight sleeve is provided with a mating internal thread section, which corresponds to the connecting sleeve member.

[0013] Furthermore, the sleeve connector includes a main sleeve and an external threaded section disposed on the upper outer side of the main sleeve. The inner diameter of the main sleeve corresponds to the outer diameter of the reinforcing bar anchor rod. The length of the external threaded section is 5-6 times the diameter of the reinforcing bar anchor rod, and the external threaded section is connected to the internal threaded section of the mating vertical part.

[0014] Furthermore, the main sleeve is fitted with the reinforcing bar anchor rod body, and an adhesive layer is provided at the fitting connection.

[0015] The beneficial effects of this utility model are reflected in:

[0016] This invention, through the inclusion of reinforcing ribs, facilitates the foundation for fixing the reinforcing anchor rod body. The use of connecting joints ensures a secure connection between the reinforcing ribs and the anchor rod body. The horizontal connecting section allows for easy insertion of the reinforcing ribs and fixation via an adhesive layer. The vertical connecting section features an internal threaded section, ensuring a threaded connection with the sleeve connector. The sleeve connector also provides threaded fixation to the anchor rod body, thereby guaranteeing convenient on-site construction and a stable connection. Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The main objectives and other advantages of this invention can be realized and obtained through the means particularly pointed out in the description. Attached Figure Description

[0017] Figure 1 This is a side sectional view of a basalt fiber reinforced anchor bolt reinforcement connection structure;

[0018] Figure 2 This is a schematic diagram of the slope layer, the reinforced anchor rod body, and the connection structure of the reinforcing bars;

[0019] Figure 3This is a schematic diagram of the connection structure of the reinforced anchor rod body, the butt joint, the sleeve connector, and the reinforcing rib;

[0020] Figure 4 This is a schematic diagram of the docking component structure;

[0021] Figure 5 This is a schematic diagram of the sleeve connecting component structure.

[0022] Attached reference numerals: 1-Foundation pit, 2-Slope top, 3-Slope, 4-Slope surface layer, 41-Concrete, 42-Reinforcing mesh, 5-Reinforcing nail, 6-Reinforcing anchor rod body, 7-Reinforcing bar, 8-Butt joint, 81-Horizontal butt joint, 82-Vertical butt joint, 83-Internal threaded section of butt joint, 9-Adhesive layer, 10-Sleeve connector, 101-Main sleeve, 102-External threaded section of sleeve, 11-Adhesive layer. Detailed Implementation

[0023] Taking the anchor support of a foundation pit slope as an example, such as Figures 1 to 5 As shown, a basalt fiber reinforced anchor reinforcement connection structure includes a foundation pit 1, a slope top 2, a slope 3 set between the foundation pit 1 and the slope top 2, a slope surface layer 4 set on the outer side of the slope 3, a fiber reinforced anchor rod 6 connected to the slope surface layer 4 and extending into the soil body of the slope 3, a reinforcing bar 7 connected between a row of fiber reinforced anchor rods 6 and located inside the slope surface layer 4, and a connecting piece 8 connecting the reinforcing bar 7 and the fiber reinforced anchor rod 6.

[0024] In this embodiment, the docking part 8 is T-shaped and made of steel sleeve. The docking part 8 includes a docking horizontal part 81 connected to the reinforcing rib 7 and a docking vertical part 82 connected to the reinforcing anchor rod body 6. A sleeve connector 10 is provided between the docking vertical part 82 and the reinforcing anchor rod body 6.

[0025] In this embodiment, the bottom of the slope layer 4 is located at the bottom of the foundation pit 1, and the top is provided with an extended section at the top of the slope 2, with the extended section being at least 1000mm long. The extended section of the slope layer 4 is fixedly connected to the slope 3 by steel bar nails 5. The steel bar nails 5 have a diameter of 18mm, are spaced at 1500mm intervals, and extend 500mm into the soil. The slope layer 4 includes concrete 41 and a steel mesh 42 disposed inside the concrete 41. The concrete 41 is shotcrete with a thickness of 80mm; the steel mesh 42 is a two-way steel mesh, and the diameter of the steel bars used is 6mm.

[0026] In this embodiment, the reinforcing anchor rod 6 is a basalt fiber composite reinforcement with a diameter of 20mm. The reinforcing anchor rod 6 is inclined and forms a 10-degree angle with the horizontal plane; the reinforcing anchor rod 6 is spaced apart along the height of the slope 3; the end of the reinforcing anchor rod 6 passes through the hole of the reinforcing steel sheet and connects to the reinforcing bar 7.

[0027] In this embodiment, the reinforcing rib 7 is a basalt fiber reinforcing rib 7, and the diameter of the reinforcing rib 7 is 16mm, which is larger than the diameter of the reinforcing bar of the steel mesh 42. The reinforcing rib 7 is tied to the outside of the steel mesh 42, or directly set on the outside of the steel mesh 42 and directly fixed in the concrete 41 by subsequent shotcrete.

[0028] In this embodiment, the horizontal part 81 is a straight sleeve with a smooth interior. The inner diameter of the straight sleeve is larger than the outer diameter of the reinforcing rib 7, and the gap between them is filled with an adhesive layer 9. The vertical part 82 is a straight sleeve with an internal threaded section 83 inside. The internal threaded section 83 corresponds to the connecting sleeve member 10.

[0029] Among them, the adhesive layer 9 is a grouting layer or a structural adhesive layer.

[0030] In this embodiment, the sleeve connector 10 is made of steel and includes a main sleeve 101 and an external threaded section 102 disposed on the upper outer side of the main sleeve 101. The inner diameter of the main sleeve 101 corresponds to the outer diameter of the reinforcing anchor rod 6, and the length of the main sleeve 101 is greater than 10 times the diameter of the reinforcing anchor rod 6. The length of the external threaded section 102 is 5-6 times the diameter of the reinforcing anchor rod 6, and the external threaded section 102 is connected to the internal threaded section 83 of the mating vertical part 82. The main sleeve 101 is fitted with the reinforcing anchor rod 6, and an adhesive layer 11 is provided at the fitting connection.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A basalt fiber reinforced anchor bolt reinforcement connection structure, characterized in that, Includes a foundation pit (1), a slope top (2), a slope (3) set between the foundation pit (1) and the slope top (2), a slope surface layer (4) set on the outer side of the slope (3), a reinforcing anchor rod (6) connected to the slope surface layer (4) and extending into the soil body of the slope (3), a reinforcing bar (7) connected between a row of reinforcing anchor rods (6) and located inside the slope surface layer (4), and a connecting piece (8) connecting the reinforcing bar (7) and the reinforcing anchor rod (6); The docking part (8) is T-shaped and includes a docking horizontal part (81) connected to the reinforcing rib (7) and a docking vertical part (82) connected to the reinforcing anchor rod body (6). A sleeve connector (10) is provided between the docking vertical part (82) and the reinforcing anchor rod body (6).

2. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 1, characterized in that, The bottom of the slope layer (4) is set at the bottom of the foundation pit (1), and the top is set at the top of the slope (2) with an extension section, and the length of the extension section is at least 1000mm; the extension section slope layer (4) is fixedly connected to the slope (3) by steel nails (5).

3. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 1, characterized in that, The slope layer (4) includes concrete (41) and a steel mesh (42) set inside the concrete (41). The concrete (41) is shotcrete (41) with a thickness of 80 mm; the steel mesh (42) is a two-way steel mesh.

4. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 3, characterized in that, The reinforcing anchor rod (6) is a basalt fiber composite reinforcing bar. The reinforcing anchor rod (6) is inclined and forms a 10-degree angle with the horizontal plane. The reinforcing anchor rod (6) is spaced apart in the height direction of the slope (3). The end of the reinforcing anchor rod (6) passes through the hole of the reinforcing steel sheet and is connected to the reinforcing bar (7).

5. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 4, characterized in that, The reinforcing bar (7) is a basalt fiber reinforcing bar (7), and the diameter of the reinforcing bar (7) is larger than the diameter of the reinforcing bar of the steel mesh (42); the reinforcing bar (7) is located on the outside of the steel mesh (42).

6. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 1, characterized in that, The connecting horizontal part (81) is a straight sleeve with a smooth interior. The inner diameter of the straight sleeve is larger than the outer diameter of the reinforcing rib (7), and the gap between the two is filled with an adhesive layer (9).

7. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 6, characterized in that, The vertical part (82) is a straight sleeve and the inside of the straight sleeve is provided with a threaded section (83), which is connected to the sleeve connector (10).

8. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 7, characterized in that, The sleeve connector (10) includes a main sleeve (101) and an external threaded section (102) located on the upper part of the outer side of the main sleeve (101). The inner diameter of the main sleeve (101) corresponds to the outer diameter of the reinforcing anchor rod (6). The length of the external threaded section (102) is 5-6 times the diameter of the reinforcing anchor rod (6). The external threaded section (102) is connected to the internal threaded section (83) of the docking vertical part (82).

9. The basalt fiber reinforced anchor bolt reinforcement connection structure as described in claim 8, characterized in that, The main sleeve (101) is fitted with a reinforcing bar anchor rod (6) and an adhesive layer (11) is provided at the connection point.

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