Mining Method Without Coal Pillars With Roof-Cutting And Roadway Retaining

Abstract

The present disclosure relates to the technical field of coal mining, and in particular, to a mining method without coal pillars with roof-cutting and roadway retaining, comprising: constructing a gas drainage roadway and eliminating outbursts in a working face transport gate area and a working face track gate area on opposite sides of a first mining working face; constructing the working face track gate, the working face transport gate, a first process roadway and a second process roadway, one end of the working face track gate is communicated with an air return roadway, the other end is communicated with the gas drainage roadway by the first process roadway, one end of the working face track gate is communicated with the air return roadway, the other end is communicated with the gas drainage roadway by the second process roadway; stoping the working face, forming an roadway retaining section, the roadway retaining section is communicated with the gas drainage roadway by the first process roadway and the second process roadway, forming a ventilation system. Make full use of the existing gas drainage roadway to meet the roadway layout requirements using the 110 construction method, increasing the use function of the roadway and increasing the reuse rate of the roadway, reducing the roadway engineering quantity before production, shortening the construction period and reduce the cost.

Dependencies are inferred from the claim text.