Supporting method of stopping mining in fully mechanized mining face

Abstract

The invention relates to a roof support process under a coal mine, in particular to fully mechanized mining face mining stopping support method. The problems that an existing fully mechanized mining face is high in mining stopping I-shaped steel support cost, large in labor intensity of workers and long in mining stopping support construction period, and top plate local breaking is prone to occurring are solved. According to the fully mechanized mining face mining stopping support method, anchor cables, anchor rods, metal nets, steel belts and combined anchor cable groups are adopted for combining support, the self-bearing capability of a bracket is matched, and mining stopping support is conducted; and the working face is divided into a frame dismantling channel, a bracket and mining stopping support combined support area and a natural caving area according to purposes after mining stopping to conduct top plate management during mining stopping, local support strengthening is conducted in a targeted mode, and I-shaped steel is replaced by the combined anchor cable groups, so that support is more timely, and the top plate separate layer phenomenon is avoided. Compared with existingmining stopping support, the material cost and manual consumption are greatly reduced, and the safety risk in construction is also reduced. The mining stopping support working period is shortened from 25 working days to 13 working days.

Description

technical field [0001] The invention relates to a roof support technology in a coal mine, in particular to a mining stop support method for a fully mechanized mining face. Background technique [0002] At present, the mining stop support of the working face is supported by 3.5 meters of mine-used 11# I-beam and the road wooden brake roof is used. The use of mining 11# I-beam not only has high cost, high labor intensity and low labor efficiency, but also has many hidden dangers. In the process of retracting the support, a large amount of pressure will appear on the roof of the entire working face, and the I-beam support is prone to partial breakage of the roof, and the use of the wooden backboard will leave a certain gap, which may easily lead to roof leakage accidents. The small one will cause injury to the personnel, and the large one will cause the support to be buried, resulting in a series of follow-up unnecessary works for the shutdown of mining. The whole constructio...

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problems of high cost of I-beam support for stopping mining in the existing fully mechanized mining face, high labor intensity of workers, long construction period for stopping mining and support, and easy occurrence of partial roof breakage, etc., and provides a fully mechanized mining face stop mining A support method, which replaces the I-beam with a combined anchor cable group, and optimizes the support process parameters to overcome the above-mentioned defects in the prior art