Bent anchor cable yielding top beam and construction method

Abstract

The invention relates to a bending anchor cable pressure top beam, which includes a cable body, a beam, an anchor cable guide plate, a friction fastening device and a tray. The fastening device is connected to the lower end surface of the beam, and the upper end surface of the beam and the cable body are connected to each other through the tray and the cable body. The friction fastening device includes a load-bearing base plate, a pressure plate, a guide groove and a pressure regulating bolt; the construction method includes anchoring the cable body, installing Channel steel and pallets and fastening in stages. On the one hand, the present invention can effectively improve the load-bearing and positioning operation capacity of the rock formation at the top of the roadway, has strong bearing capacity, constant bearing capacity and stable output of bearing capacity; , automatically adjust the positioning structure of the equipment, so as to effectively improve the stability and reliability of the positioning equipment while improving the bearing positioning capacity of the roadway.

Description

technical field [0001] The invention relates to a curved anchor cable yielding top beam and a construction method, belonging to the technical field of anchor cables. Background technique [0002] With the continuous increase of mining depth, it is inevitable to encounter large deformation roadways. For roadways with large deformation of surrounding rock, the traditional anchor cable support can no longer meet the actual needs of the site. The main reason is that the anchor cable elongation Insufficient, the active yielding capacity is low, and the anchor cable breakage often occurs during the support process, which leads to the failure of the support system. How to realize the constant resistance yielding pressure of the anchor cable support is a research hotspot in the field of roadway support at present. Therefore, In response to this problem, it is urgent to develop a new anchor cable structure, which can provide excellent constant resistance yielding capacity, simple ins...

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of mining depth, it is inevitable to encounter large deformation roadways. For roadways with large deformation of surrounding rock, the traditional anchor cable support can no longer meet the actual needs of the site. The main reason is that the anchor cable elongation Insufficient, the active yielding capacity is low, and the anchor cable breakage often occurs during the support process, which leads to the failure of the support system. How to realize the constant resistance yielding pressure of the anchor cable support is a research hotspot in the field of roadway support at present. Therefore, In response to this problem, it is urgent to develop a new anchor cable structure, which can provide excellent constant resistance yielding capacity, simple installation, safe and reliable work, and solve a series of problems caused by insufficient yielding capacity, and improve Stability of roadway support

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