摘要
大采高综采是厚煤层高采出率开采技术的重要发展方向,与分层综采相比,具有回收率高、生产能力大、单产高、安全性好、巷道布置简单、工序简单、巷道掘进量和维护量小等优点,但大采高综采工作面煤壁极易片帮,阐述了大采高综采煤壁片帮的机理、影响因素及一些预防措施。
The fully mechanized mining with large mining height is an important developing trend for thick coal.Compared with stratified fully mechanized mining,this mining method has many advantages.The paper analyzed the mechanism and factors of coal wall＇s rib spalling happened in fully mechanized mining face with large mining height and proposed some preventive measures.
出处
《陕西煤炭》
2011年第4期31-33,共3页
Shaanxi Coal
基金
中国矿业大学2010年江苏省大学生实践创新训练计划项目(项目编号:2010001)
关键词
大采高
片帮
产生机理
影响因素
预防措施
large mining height
rib spalling
mechanism
influencing factors
preventive measures
