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Bent anchor cable yielding top beam and construction method

A technology for pressing roof beams and anchor cables, which is applied in the field of anchor cables, can solve problems such as low active yielding capacity, insufficient elongation of anchor cables, failure of support systems, etc., achieve low labor intensity, improve load-bearing positioning operation capacity, and load-carrying capacity strong effect

Pending Publication Date: 2017-11-17
HENAN POLYTECHNIC UNIV
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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

Method used

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  • Bent anchor cable yielding top beam and construction method
  • Bent anchor cable yielding top beam and construction method
  • Bent anchor cable yielding top beam and construction method

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Embodiment Construction

[0028] Such as figure 1 - As shown in -8, a kind of curved anchor cable yielding top beam includes cable body 1, cross beam 2, anchor cable guide plate 3, friction fastening device 4 and tray 5, and cross beam 2 is a groove with a "冂" font in cross section Two positioning holes 6 are evenly distributed on the upper end surface of the beam 2, and the positioning holes 6 are symmetrically distributed at both ends of the beam 2 with the center line of the beam 2, and the axis of the positioning hole 6 is perpendicular to and intersects with the axis of the beam 2, and the cable body 1 has two The ends of which are respectively connected to the beam 2 through the positioning holes 6. The cable body 1 is located at the position of the lower end surface of the beam 2 by 1 / 10-1 / 3 of the length of the cable body 1, and is connected to the beam through the anchor cable guide plate 3 and the friction fastening device 4. 2. The lower end faces are connected to each other. The upper end f...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D17/00E21D17/10
CPCE21D17/00E21D17/10
Inventor 贾后省王璐瑶刘少伟李振峰苏发强付孟雄冯志耀李亮吉祥蒋帅旗王伟
Owner HENAN POLYTECHNIC UNIV
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