大采高工作面矿压显现规律分析

Analysis on Strata Behavior Regularities of Large Mining Height Working Face

国内外成功经验表明,大采高工作面不仅能提高工作面单产、方便巷道布置、简化生产系统,而且能提高矿井资源采出率,是矿井高产高效集中生产的主要技术方向之一。以某矿大采高工作面开采技术条件为研究背景,利用现场实测、数理统计分析等方法,从顶板来压特征、支架载荷和超前支承压力分布规律等方面对大采高工作面矿压显现规律进行研究。为类似条件的工作面顶板控制提供了完善、可靠的资料,对解决工程问题具有实际指导意义。

Successful experience which at home and abroad has shown that large mining height working faces could not only improve yields of working face,facilitate the roadway layout,simplified production system,but also improve the recovery ratio of mine.Large mining height is one of the main technical directions in the field of mine′s high efficiency and concentration of production.Large mining height′s mining conditions in some mine was researched in this paper.Based on methods of in-situ measurement and mathematical statistics analysis,strata behavior regularity was analyzed from the aspects of roof weighting characteristics,supports load and distribution regularity of advanced abutment pressure and so on.At last,this paper provides perfect and reliable information for other roof control of working face with similar conditions,which has actual guiding significance for the solution of practical engineering problems.