关键词: 近距离煤层, 采空区, 开采影响, 支护效果

Abstract: Abstract: Analyzed the main influence of the support along the channel in the working face under the goaf of the short distance coal seam. Taking the WU9-10-22310 working face as the research object, combined with the field practice, the support method of "truss anchor cable + anchor net" is proposed to support the working face along the channel, and the basic parameters of the support are determined by means of numerical simulation. The support practice shows that, through the application of the support method, the amount of roof and floor moving and two sides moving is less than 1% in the tunnelling period, and less than 5% in the stoping period, the support effect is good and can meet the requirements of field mining.