A tunneling method for mine cross-section cutting and tunneling

Abstract

The invention provides a section cutting hole tunneling method of a mine, and relates to the technical field of mining. The section cutting hole tunneling method of the mine comprises the following steps that 1,the actual condition of a working face coal seam in an early tunneling process is judged, a tool is advanced from the top left corner of a roadway to cut a socket groove through a heading machine, a working face is sequentially cut in a circulating and reciprocating mode by using a cutting mode which is conducted from the top to the bottom and from the left to the right, and the two sides of the roadway and a bottom plate are repaired; and 2, inspection is performed on the heading machine, a cutting system is started under the condition of no load, and a cutting head of the headingmachine is enabled to rotate. According to the section cutting hole tunneling method of the mine, the total width of the cutting hole is 7 meters, the length is 150 meters, the width of the roadway isreduced firstly, and tunneling is conducted for 150 meters with the width of 3.5 meters and the roadway is connected with an air return way in a through mode, so that the tunneling speed can be accelerated, the rapid breakthrough of the cutting hole and the air return way can be brought forwards, the safety during tunneling operation is increased, the use of a local fan can be stopped in advanceafter the breakthrough, and the energy-saving effect is achieved.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a tunneling method for cutting holes in mine sections and forming lanes. Background technique [0002] Underground coal mining usually requires excavating a series of wells and roadways from the ground to the ground, including main and auxiliary shafts, development roadways, preparation roadways, and recovery roadways. In order to protect the above-mentioned roadway, it is necessary to leave a large number of roadway protection coal pillars near the roadway during the mining process to avoid damage to the roadway due to mining and roof movement. [0003] Many of these mines belong to resource integration mines. This type of mine is generally formed by integrating multiple small mines in the past. During coal seam mining, due to serious damage in the mine, there are large areas of gobs in the coal seam, which is typical. Re-mined mine. In the tunneling construction of fully-mecha...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a tunneling method for section cutting and tunneling in a mine, so as to solve the problem that the existing tunneling method for section cutting and tunneling has a slow driving speed and cannot realize the rapid penetration of the tunnel and the return air trough, which reduces the time required for tunneling operations. safety, and more energy-consuming issues