Method for passing through total rock section in coal mining process

Abstract

The invention provides a method for passing through a total rock section in a coal mining process. The method comprises the following steps: firstly, one measure roadway with the length of 5m is constructed on the part, located on the total rock section, of a coal wall of a ventilation roadway every 10m; the tail ends of all the measure roadways are communicated by a communication roadway; when the stoping is carried out on a working surface until the distance to the total rock section is 10m, a shaking hole is constructed in the measure roadways towards a working surface so as to carry out blasting treatment; and finally, single columns are arranged in the measure roadways so that roofs in the roadways are complete. According to the method, a rock roadway in the working surface can be dug in advance by constructing in the measure roadways in the total rock section; in the stoping process, the quantity of the holes in the working surface is greatly reduced, the hidden dangers to the roofs by great amount of blasting are avoided, and the loss of units and the like is reduced; and the damages to equipment by blasting are reduced, the propelling speed is enhanced and the unit yield is guaranteed.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a method for passing through the whole rock section in the coal seam mining process. Background technique [0002] The geological conditions of Carboniferous coal mines are complex, and geological structures such as erosion, collapse columns, and faults are the main factors restricting the yield capacity. At present, the conventional method for crossing the geological structure belt is to use the vibrating cannon, but this method is slow in advancing speed and seriously damages the equipment, and there are generally 0.8-1.5 meters of coal seams above the Carboniferous coal seam. Difficulty, so urgently need a quick and safe method to pass through the geological structure belt. Contents of the invention [0003] The purpose of the present invention is to solve the problems in the above-mentioned prior art, and provide a method for passing through the whole rock section in t...

AI Technical Summary

Problems solved by technology

At present, the conventional method for crossing the geological structure belt is to use the vibrating cannon, but this method is slow in advancing speed and seriously damages the equipment, and there are generally 0.8-1.5 meters of coal seams above the Carboniferous coal seam. Difficult, so there is an urgent need for a fast and safe way to pass through the geological structure

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