摘要
本文介绍了底板比压测试的基本原理及方法,并对高家梁煤矿20306工作面底板承载性能进行实测研究,结果表明:20306工作面底板极限比压为3.69MPa,刚度为1.168MPa/mm。
This paper introduces the bottom pressure test,the basic principle and method of Gao Jia -liang coal mine 20306 working face floor load -bearing performance measurement research,the results showthat the bottom limit of 20306 face specific pressure is 3.69 MPa,stiffness is 1.168 MPa/mm.
出处
《山东煤炭科技》
2014年第2期157-158,共2页
Shandong Coal Science and Technology
关键词
底板比压
底板承载性能
极限比压
floor specific pressure
floor load -bearing properties
extreme pressure
