摘要
复合型直接顶条件下的采煤工作面极易发生推垮型事故,在各类顶板事故中占较大比例。对单体支柱工作面复合型顶板推垮型事故进行了分析,提出了事故发生的机理和预防办法。
The roof fall accident is easily happened at the compound immediate roof face. The compound roof fall accident of the individual hydraulic prop face is analyzed. The accident mechanization and prevention method are pointed.
出处
《煤炭技术》
CAS
2006年第4期67-68,共2页
Coal Technology
关键词
单体支柱工作面
复合型顶板
推垮型事故
individual hydraulic prop face
compound roof
roof fall accident
