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根据东曲矿瓦斯治理的要求,在本工作面回采前,相邻工作面的顺槽必须形成。这样一来势必导致本工作面回采过程中本工作面开采对相邻工作面巷道产生了强烈的动压作用,待相邻工作面回采时,此巷道变形严重,维修量大,维修周期长,投入材料费用高。通过更改支护工艺及支护材料的方法,使得巷道的变形量在可控范围内,后期回采不受影响,既节约了成本,又缓解了采掘衔接紧张的局势。
According to the requirement of gas management in Dongqu Mine, the trough of the adjacent working face must be formed before the face is recovered. This will inevitably lead to the mining face of the working face mining the adjacent face of the roadway has a strong dynamic pressure effect, to be adjacent mining face, the roadway serious deformation, large maintenance, long maintenance cycle, High cost of inputs materials. By changing the supporting technology and supporting materials, the deformation of the roadway can be controlled within the controllable range, the post-mining is not affected, which not only saves the cost but also relieves the tension of the mining connection.