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介绍了兖矿集团杨村煤矿307综放面在F4大断层、顶板破碎条件下如何营造撤面条件和回撤工作面液压支架的实践。通过多种技术措施的综合应用,该工作面顺利完成了回撤任务。所取得的经验对类似矿井具有借鉴意义。
This paper introduces the practice of how to create the condition of withdrawing face and withdraw hydraulic support of working face under the condition of F4 large fault and roof crushing in Yangcun Coal Mine 307 fully mechanized caving face of Yankuang Group. Through the comprehensive application of a variety of technical measures, the work surface successfully completed the pullback task. The experience gained can be of reference to similar mines.