A tower cable wind ground anchor structure

Abstract

The utility model provides a tower cable wind ground anchor structure, including ground anchor foundation, a plurality of cable wind embedded parts and a plurality of prestressed anchor cable, the ground anchor foundation sets up in the side portion of arch seat foundation, the ground anchor foundation with the adjacent bonding surface of arch seat foundation is connected fixed through the embedded planted nail, and the ground anchor foundation with the adjacent bonding surface of arch seat foundation is connected fixed through the embedded planted nail, and the ground anchor foundation with the adjacent bonding surface of arch seat foundation is set up steel mesh piece, a plurality of cable wind embedded parts interval setting, the bottom of cable wind embedded part is fixed in the ground anchor foundation through the steel pipe support embedded in the ground anchor foundation, and the top of cable wind embedded part is used for connecting cable wind rope, the prestressed anchor cable is anchored on the ground anchor foundation, and is arranged with the cable wind embedded part interval. The tower cable wind ground anchor structure solves the problem that the gravity type cable wind ground anchor cannot resist the tensile force when encountering adverse topography and geology, leading to insufficient stability of the ground anchor.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge engineering technology, specifically to a tower cable wind anchor structure. Background Technology

[0002] Tower guyed ground anchors are connected to the tower via guyed ropes, which can effectively prevent the tower from tilting or shifting due to external forces (such as wind, hoisting loads, etc.) during construction, ensuring the tower's uprightness and stability. In addition, guyed ground anchors can also transfer the horizontal loads on the tower (such as wind loads, unbalanced forces during hoisting, etc.) to the ground, avoiding excessive displacement or deformation of the tower due to uneven stress.

[0003] Currently, the tower cable ground anchors used in China are mainly gravity anchors. These anchors rely on their own weight and the front wall to resist diagonal tension forces, using large volumes of concrete or sandbags piled on top. This method has high requirements for terrain and geology; in steep or geological conditions, it cannot resist the tension forces, resulting in insufficient anchor stability and posing certain construction risks. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems mentioned above, and provides a tower cable wind anchor structure to solve the problem that gravity cable wind anchors cannot resist tension when encountering adverse terrain and geology, resulting in insufficient anchor stability.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A tower guy cable ground anchor structure includes a ground anchor foundation, several guy cable embedded parts, and several prestressed anchor cables. The ground anchor foundation is located on the side of an arch base foundation. The adjacent mating surfaces of the ground anchor foundation and the arch base foundation are connected and fixed by pre-embedded rebars, and a steel mesh is provided between the adjacent mating surfaces of the ground anchor foundation and the arch base foundation. The several guy cable embedded parts are spaced apart. The bottom of the guy cable embedded parts is fixed in the ground anchor foundation by steel pipe supports pre-embedded in the ground anchor foundation, and the top of the guy cable embedded parts is used to connect guy cables. The prestressed anchor cables are anchored to the ground anchor foundation and are spaced apart from the guy cable embedded parts.

[0007] Furthermore, each of the aforementioned guy rope embedded parts includes an embedded rod and several reinforcing bars. The bottom of the embedded rod is fixed to the ground anchor foundation through the steel pipe support, and the top of the embedded rod is used to connect the guy rope. The embedded rod has several insertion holes spaced apart along its length, and a reinforcing bar is inserted into each insertion hole. The reinforcing bar is embedded in the ground anchor foundation.

[0008] Furthermore, the embedded rod is inclined so that it forms an angle with the horizontal plane.

[0009] Furthermore, the reinforcing steel bar is perpendicular to the embedded rod.

[0010] Furthermore, the reinforcing steel bar is a ribbed steel bar.

[0011] Furthermore, the top of the pre-embedded rod is located outside the ground anchor foundation and is equipped with a pin for connecting the guy rope.

[0012] Furthermore, the outermost side of the ground anchor foundation is also provided with embedded steel bars, which are arranged along the length of the outer side of the ground anchor foundation.

[0013] Furthermore, the rebar is 60cm long, and the two ends of the rebar are pre-embedded in the ground anchor foundation and the arch foundation, respectively, and the rebar is embedded to a depth of 30cm.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects:

[0015] 1. The above-mentioned tower cable-stayed ground anchor structure relies on the arch foundation and fixes the cable-stayed embedded parts through steel pipe supports. The overall stability of the tower cable-stayed ground anchor structure is enhanced by setting up rebar and steel mesh between the cable-stayed ground anchor and the arch foundation. The ground anchor foundation plays a role in tensile resistance, and the set prestressed anchor cables play a role in pull-out resistance. This achieves the purpose of high overall safety of the ground anchor structure system and makes full use of the arch foundation. It can achieve overall stability even in a small space, thus solving the problem of insufficient stability of gravity cable-stayed ground anchors when encountering adverse terrain and geology.

[0016] 2. In the above-mentioned tower cable wind anchor structure, reinforcing steel bars are inserted into the holes of the cable wind embedded parts to increase the friction between the cable wind embedded parts and the ground anchor foundation, thereby stabilizing the cable wind embedded parts after pouring and further improving its pull-out resistance and the stability of the ground anchor structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tower cable wind anchor structure according to a preferred embodiment of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the elevation structure of the embedded parts and prestressed anchor cables of the central cable wind tunnel on surface AA;

[0019] Figure 3 for Figure 2 A schematic diagram of the planar structure of the rebar anchored on the BB side;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the rebar in a preferred embodiment of this utility model.

[0021] Figure 5 This is a side view of the cable wind tunnel embedded part and the steel pipe support in a preferred embodiment of the present invention.

[0022] In the attached diagram, 100 is the tower cable anchor structure; 10 is the anchor foundation; 20 is the embedded cable; 21 is the embedded rod; 211 is the mounting hole; 213 is the pin; 215 is the insertion hole; 23 is the reinforcing steel bar; 30 is the prestressed anchor cable; 40 is the rebar; 50 is the steel mesh; 60 is the embedded steel bar; 70 is the steel pipe support; 80 is the PVC hole; and 200 is the arch foundation. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figures 1 to 5 A preferred embodiment of this utility model provides a tower cable-and-wind anchor structure 100, including an anchor foundation 10, a cable-and-wind embedded part 20, and a prestressed anchor cable 30. The anchor foundation 10 is disposed on the side of the arch foundation 200. The bottom of the cable-and-wind embedded part 20 is fixed to the anchor foundation 10 by a steel pipe support 70 embedded in the anchor foundation 10. The top of the cable-and-wind embedded part 20 is used to connect the cable-and-wind rope (not shown in the figure). The prestressed anchor cable 30 is anchored to the anchor foundation 10 and is spaced apart from the cable-and-wind embedded part 20.

[0027] The adjacent mating surfaces of the ground anchor foundation 10 and the arch base foundation 200 are connected and fixed by pre-embedded rebars 40, and a steel mesh 50 is provided between the adjacent mating surfaces of the ground anchor foundation 10 and the arch base foundation 200. In this embodiment, the rebars 40 are 60cm long, with their opposite ends pre-embedded in the ground anchor foundation 10 and the arch base foundation 200, respectively. The embedding depth of the rebars 40 is 30cm, meaning that the length of the rebars 40 extending into the ground anchor foundation 10 and the length of the rebars 40 extending into the arch base foundation 200 are both 30cm, and the spacing between two adjacent rebars 40 is 30cm. In this embodiment, pre-embedded steel bars 60 are also embedded on the outermost side of the ground anchor foundation 10, and the pre-embedded steel bars 60 are arranged along the length of the outer surface of the ground anchor foundation 10. The setting of the pre-embedded steel bars 60 can further improve the protection of the ground anchor foundation 10 and prevent cracking of the outer surface of the ground anchor foundation 10. The steel mesh 50 is set vertically, laid and pre-embedded on the joint surface of the ground anchor foundation 10 and the arch foundation 200.

[0028] In this embodiment, there are multiple guy rope embedded parts 20, which are spaced apart. Each guy rope embedded part 20 includes an embedded rod 21 and several reinforcing steel bars 23. The bottom of the embedded rod 21 is fixed to the ground anchor foundation 10 by a steel pipe bracket 70. Specifically, the embedded rod 21 can be fixed to the steel pipe bracket 70 by binding or welding, and the steel pipe bracket 70 is embedded in the ground anchor foundation 10. The top of the embedded rod 21 is used to connect the guy rope. In this embodiment, the top of the embedded rod 21 is located outside the ground anchor foundation 10 and is equipped with a pin 213 for connecting the guy rope. Specifically, the top of the embedded rod 21 has a mounting hole 211, and the pin 213 passes through the mounting hole 211. The embedded rod 21 is inclined so that the embedded rod 21 forms an angle with the horizontal plane. The embedded rod 21 has several insertion holes 215 spaced apart along its length. A reinforcing steel bar 23 is inserted into each insertion hole 215. The reinforcing steel bar 23 is embedded in the ground anchor foundation 10. The reinforcing steel bar 23 is preferably a ribbed steel bar and is perpendicular to the embedded rod 21.

[0029] In this embodiment, a plurality of prestressed anchor cables 30 are provided, and the plurality of prestressed anchor cables 30 are spaced apart on the side of the cable pre-embedded part 20. Each prestressed anchor cable 30 extends vertically.

[0030] During the construction of the arch foundation 200, rebar 40 and rebar 60 are pre-embedded within the arch foundation 200, so that one end of the rebar 40 and one end of the rebar 60 are fixed within the concrete body of the arch foundation 200. For the tower cable anchor structure 100, a steel pipe support 70 is erected at the anchor foundation 10 corresponding to the installation position of the cable anchor 20. The bottom of the cable anchor 20 is then fixed to the steel pipe support 70 by welding or other methods, and reinforcing rebar 23 is inserted into the insertion hole 215 of the cable anchor 20. A PVC hole 80 is reserved for installing the prestressed anchor cable 30. Specifically, a PVC pipe (not shown) is tied to the steel pipe support 70. After the concrete of the anchor foundation 10 is poured, the PVC pipe remains unobstructed, forming a PVC hole 80, which can be used for the subsequent installation and grouting of the prestressed anchor cable 30. Subsequently, concrete is poured for the ground anchor foundation 10. After pouring, prestressed anchor cables 30 are installed through PVC holes 80. The PVC holes 80 are then grouted to ensure compaction. Once the grouting reaches the required strength, the tension of a single prestressed anchor cable 30 is not less than 10t. The structure and installation of the prestressed anchor cable 30 are existing technologies and will not be described in detail here to omit the deviation.

[0031] The aforementioned tower cable-stayed ground anchor structure 100 relies on the arch foundation 200 and fixes the cable-stayed embedded parts 20 through the steel pipe support 70. The overall stability of the tower cable-stayed ground anchor structure 100 is enhanced by setting up rebar 40 and steel mesh 50 between it and the arch foundation 200. The ground anchor foundation 10 plays a tensile role, and the set prestressed anchor cable 30 plays a pull-out role. This achieves the purpose of high overall safety of the ground anchor structure system and makes full use of the arch foundation 200, so that it can achieve overall stability in a small space. This solves the problem that gravity cable-stayed ground anchors cannot resist tensile forces when encountering adverse terrain and geology, resulting in insufficient ground anchor stability.

[0032] The aforementioned tower cable anchor structure 100, with reinforcing steel bars 23 inserted into the insertion holes 215 of the cable pre-embedded part 20, can improve the friction between the cable pre-embedded part 20 and the anchor foundation 10, thereby stabilizing the cable pre-embedded part 20 after pouring, and further improving its pull-out resistance and the stability of the anchor structure.

[0033] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A tower cable wind anchor structure, characterized in that: The system includes a ground anchor foundation, several embedded guy wires, and several prestressed anchor cables. The ground anchor foundation is located on the side of the arch abutment foundation. The adjacent mating surfaces of the ground anchor foundation and the arch abutment foundation are connected and fixed by pre-embedded rebars, and a steel mesh is provided between the adjacent mating surfaces of the ground anchor foundation and the arch abutment foundation. Several embedded guy wires are spaced apart. The bottom of each embedded guy wire is fixed to the ground anchor foundation by a steel pipe support pre-embedded in the ground anchor foundation, and the top of each embedded guy wire is used to connect guy wires. The prestressed anchor cables are anchored to the ground anchor foundation and are spaced apart from the embedded guy wires.

2. The tower cable wind anchor structure as described in claim 1, characterized in that: Each of the aforementioned guy rope embedded parts includes an embedded rod and several reinforcing bars. The bottom of the embedded rod is fixed to the ground anchor foundation by the steel pipe support, and the top of the embedded rod is used to connect the guy rope. The embedded rod has several insertion holes spaced apart along its length, and a reinforcing bar is inserted into each insertion hole. The reinforcing bar is embedded in the ground anchor foundation.

3. The tower cable wind anchor structure as described in claim 2, characterized in that: The embedded rod is inclined so that it forms an angle with the horizontal plane.

4. The tower cable wind anchor structure as described in claim 2, characterized in that: The reinforcing steel bar is perpendicular to the embedded rod.

5. The tower cable wind anchor structure as described in claim 2, characterized in that: The reinforcing steel bars are ribbed steel bars.

6. The tower cable wind anchor structure as described in claim 2, characterized in that: The top of the pre-embedded rod is located outside the ground anchor foundation and is equipped with a pin for connecting the guy rope.

7. The tower cable wind anchor structure as described in claim 1, characterized in that: The outermost side of the ground anchor foundation is also provided with embedded steel bars, which are arranged along the length of the outer side of the ground anchor foundation.

8. The tower cable wind anchor structure as described in claim 1, characterized in that: The rebar is 60cm long, and its two ends are pre-embedded in the ground anchor foundation and the arch foundation, respectively. The rebar is installed to a depth of 30cm.

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