The compound roof fall accident of the individual hydraulic prop face is analyzed. The accident mechanization and prevention method are pointed.
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。
Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.
在薄煤层工作面中使用单体液压支柱，在支护强度、初撑力、可缩量、安全保障及操作人员安全上，都优于其它单体支护材料。
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