关键词: 采掘工作面, 钻孔坍塌, 区域验证钻孔, 复合指标法, 缓冲式挡煤器

Abstract: Through the analysis of composite index method is used to predict coal mine mining working face of the status quo of outburst danger region tunnelling face verification borehole collapse buried the influence factors of measuring instruments, is proposed and developed a kind of to cushion block coal device, high pressure air processing unit. Type the device based on mine CWY30 borehole gas emission velocity meter structural design, can effectively handle buried instruments, reduce the wastage of the measuring instruments in the area to verify, reduces the mine gas control investment cost, eliminate the potential safety hazard, in order to protect the safety of site construction personnel.