岩土工程学报2011，Vol.33Issue(11)：1726-1733,8.
煤矿特大动力突水动力冲破带形成机理研究
Formation mechanism of dynamic impact failure zone of super dynamic water inrush in coal mine
摘要
Abstract
The elastic energy accumulates in the hard rock stratum with whole blocky structure because of underground mining.The hard rock stratum will fail with the increase of the elastic energy and instantaneously release massive energy of motion,which induces high water pressure in the aquifer near the hard rock stratum.The high water pressure creates the water-conducting which is impacted instantly between the aquifer and excavation free face so as to form the dynamic water inrush.Haizi Coal Mine is taken as a case study.The geological conditions and main factors of separation layer water are analyzed based on field investigation and numerical simulation.The burst tendency indices（Dt,WET and KE） of the hard rock stratum are tested.The excess hydrostatic pressure under the action of the impact dynamics is obtained by the relevant tests.Thus,the formation mechanism of dynamic impact failure zone is preliminarily studied based on the theory of blasting dynamic mechanics.关键词
采矿工程/离层水/动力突水/超静水压力/冲击动力Key words
mining engineering/separation layer water/dynamic water inrush/excess hydrostatic pressure/impact dynamics分类
矿业与冶金引用本文复制引用
乔伟,李文平,孙如华,李小琴,胡戈..煤矿特大动力突水动力冲破带形成机理研究[J].岩土工程学报,2011,33(11):1726-1733,8.基金项目
国家自然科学基金项目 （）
