较薄厚煤层综放工作面大倾角下行回撤工艺研究  

Research on downward recovery process of thick seam fully mechanized caving face with large dip angle

作　　者：李鹏 崔海峰 张洪猛 

机构地区：[1]山东济宁运河煤矿有限责任公司,山东济宁272000

出　　处：《山东煤炭科技》2014年第12期72-73,76,共3页Shandong Coal Science and Technology

摘　　要：运河煤矿9303综放工作面停采时,工作面倾角达到18~32°,若以标高较高的轨顺作为回撤通道,则制约回撤进度且安全系数较低,故采取了以标高较低的皮顺作为回撤通道,工作面支架为下行回撤。该文结合本次回撤经验,就较薄厚煤层综放工作面下行回撤技术进行深入研究,力求总结一套较为成熟的综放工作面回撤经验,确保工作面回撤工程能够适应日益复杂的采场条件,以达到安全高效回撤的目的。When 9303 fully mechanized caving face stopped, the angle of working face reach to 18-32 ＆#176;, if being the transport entry with higher elevation as recovery channel, will restrict the recovery schedule and decrease the safety factor, so taking the belt entry with lower elevation as recovery channel, face support downward withdraw, this paper, combined the withdrawal experience, researched the downward recovery process of thick seam fully mechanized caving face with large dip angle to summarize a set of mature recovery experience of fully mechanized caving face , to ensure that the working face retracement engineering to adapt to the increasingly complicated mining conditions, in order to achieve the purpose of safe and efifcient retracement.

关 键 词：较薄厚煤层 综放工作面 大倾角 下行回撤 

分 类 号：TD355.3[矿业工程—矿井建设]