Anchor cable bearing device, anchor cable and tensioning construction method thereof

Abstract

The invention belongs to the technical field of building construction appliances and equipment, and provides an anchor cable bearing device capable of increasing the tensile force of a prestressed anchor cable, including a bearing body, a gripper and a spring, and the bearing body is provided with steel strands along the axial direction For the perforated and grouted cylinder, an axial groove is arranged on the side wall of the carrier body, and the gripper is installed in the axial groove of the side wall of the carrier body. One end of the gripper is hinged with the carrier body, and the gripper The other end is provided with curved gripping teeth, and the two ends of the spring are fixedly connected with the middle part of the gripper and the middle part of the axial groove of the side wall of the carrier respectively. The axial groove flares outward. Also provided is an anchor cable with an anchor cable bearing device and a tensioning construction method thereof. Using the anchor cable of the invention for tension construction can greatly increase the tension of the anchor cable.

Description

technical field [0001] The invention belongs to the technical field of building construction appliances and equipment, and in particular relates to an anchor cable bearing device capable of increasing the tensile force of a prestressed anchor cable, an anchor cable and a tensioning construction method thereof. Background technique [0002] The prestressed anchor cable can be used to strengthen the rock mass, which can improve the force of the soil retaining row pile, increase the tensile force of the slope frame beam, and change the internal force distribution of the component. In construction engineering, highways, railways and water conservancy projects, prestressed anchor cables are often used to reinforce slopes and deep foundation pit slopes. The drill holes pass through the weak rock layer or sliding surface, and one end of the anchor cable (called the inner anchor head) is anchored on the In the hard rock formation, tension is then carried out at the other end of the ...

AI Technical Summary

Problems solved by technology

[0004] The prestressed anchor cable is a relatively complex anchoring project. The construction personnel should have rich theory and experience. When designing the tension of the anchor cable, the anchor end is usually embedded in the rock mass to a certain depth. In actual construction, due to the large change in the rock mass structure, After construction according to the designed anchor cable length, it was found that the tension of the anchor cable was insufficient after prestressed tensioning, and it was necessary to repair the cable, which virtually increased the construction cost and extended the construction period.

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