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Composite soft rock roof ladder supporting system and construction method thereof

A construction method and ladder technology, which can be used in earth drilling, mining equipment, bolt installation, etc., can solve problems such as roof separation, achieve the effects of preventing roof separation from penetration, reducing costs, and avoiding roof fall accidents

Inactive Publication Date: 2020-08-04
TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a composite soft rock roof ladder support system and construction method to solve the problem of roof detachment raised in the above-mentioned background technology

Method used

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  • Composite soft rock roof ladder supporting system and construction method thereof

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Comparison scheme
Effect test

Embodiment 1

[0023] A composite soft rock roof ladder support system, including several support units, each support unit includes several anchor rods and anchor cables of different lengths, and the plurality of anchor rods and anchor cables of different lengths increase in length Or descending order is installed on the roof 1 of the roadway, and the support units are arranged in a staggered manner along the axial or normal direction of the roadway. Both the short anchor cable 3 and the long anchor cable 4 adopt anti-retreat anchor locks.

Embodiment 2

[0025] refer to figure 1 , a composite soft rock roof ladder support system, including several support units, each support unit includes the plurality of anchor rods and anchor cables of different lengths, and the plurality of anchor rods and anchor cables of different lengths , including anchor rods 2, short anchor cables 3, and long anchor cables 4, wherein the lengths of the anchor rods 2, short anchor cables 3, and long anchor cables 4 gradually increase, and the support units are arranged staggered along the axial or normal direction of the roadway. Both the short anchor cable 3 and the long anchor cable 4 adopt anti-retreat anchor locks.

Embodiment 3

[0027] A ladder support system for a composite soft rock roof, comprising several support units, each support unit comprising the plurality of anchor rods and anchor cables of different lengths, the plurality of anchor rods and anchor cables of different lengths comprising The short anchor cables 3 and the long anchor cables 4 are arranged alternately along the axial or normal direction of the roadway. Both the short anchor cable 3 and the long anchor cable 4 adopt anti-retreat anchor locks.

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Abstract

The invention discloses a composite soft rock roof ladder supporting system and a construction method thereof, and belongs to the technical field of soft rock roof supporting. The composite soft rockroof ladder supporting system comprises a plurality of supporting units, each supporting unit comprises a plurality of anchor rods and anchor cables with different lengths, the multiple anchor rods and the multiple anchor cables with different lengths are sequentially installed on a soft rock roof according to the design requirement of a supporting scheme, and the supporting units are arranged ina staggered mode in the axial direction or the normal direction of a roadway. According to the composite soft rock roof ladder supporting system and the construction method thereof, the stepped long and short anchor cables are combined for use, the composite soft rock roof is controlled in a targeted mode, especially a roof supporting key layer, namely a rock stratum interface is controlled in a targeted mode, roof separation and penetration are effectively prevented, the safety and long-term effectiveness of roadway roof supporting can be improved, and roof caving accidents are reduced or even avoided.

Description

technical field [0001] The invention relates to the technical field of soft rock roof support, in particular to a composite soft rock roof ladder support system and a construction method. Background technique [0002] During the initial pre-tensioning process of the anchor cable support with the same length, tension cracks are likely to occur at the same layer at the anchor cable anchoring end. The cracks in the rock strata are easy to expand and develop, leading to the penetration of cracks, and then the separation of the roof, resulting in the failure of the roof anchor cable support system, and in severe cases, it is easy to cause a roof fall accident. Contents of the invention [0003] The object of the present invention is to provide a composite soft rock roof ladder support system and a construction method to solve the problem of roof detachment raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention ...

Claims

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Application Information

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IPC IPC(8): E21D21/00E21D20/00E21D20/02
CPCE21D20/003E21D20/02E21D21/00
Inventor 王阁仇亚男
Owner TAIAN TAISHUO STRATUM CONTROL SCI & TECH CO LTD