摘要
实践证明,液压支架初撑力对采煤工作面矿压显现有重要影响,因初撑力不足,而造成工作面片帮、冒顶、台阶下沉,使回采效率降低,研究中通过工程实测,对支架初撑力不足和影响因素进行了分析,并提出了解决对策,实施后控制了围岩变形,产生显著的效果。
The practice proves that the influence of BY3B320- 17/35 hydraulic- pressure support- initial strong power on the working surface appearance of mineral- pressure is very important, if the initial- strong power is inadequate , that the working surface will crack, blood and the bench will sink, consequently, it will make the rate of re- mine lower. By project - practice, analyze the inadequacy of initial - strong power and influence element , then, find the solving methods. By this way, can control the deformity of rounding - rock, and gain notable results.
出处
《煤矿机械》
北大核心
2007年第2期60-62,共3页
Coal Mine Machinery
关键词
液压支架
初撑力
影响
对策
hydraulic - pressure support
initial strong power
influence
method
