超长综放工作面采场矿山压力控制  

Ground pressure controlling on super-length fully-mechanized mining face with top-coal caving

作　　者：曹胜根[1] 缪协兴[1] 

机构地区：[1]中国矿业大学矿山压力研究所,江苏徐州221008

出　　处：《煤炭学报》2001年第6期621-625,共5页Journal of China Coal Society

基　　金：国家自然科学基金重点资助项目 ( 5 97340 90 )

摘　　要：以王庄煤矿 4 32 6超长综放工作面为例 ,分析了超长综放工作面矿山压力显现规律 ,提出了采场顶板的控制措施 .超长综放工作面顶板来压在工作面方向出现不同步特征 ,老顶断裂步距较一般工作面小 .提出主关键层来压的新概念 ,指出回采工作面矿压显现程度主要受主关键层破断的影响 .采用双泵双回路供液系统可以显著提高工作面支架初撑力 。Regarding 4326 super length fully mechanized top coal caving face as an example, the regularity of strata behaviors is analyzed, the measurements of roof controlling are put forward. The results indicate that the weighting interval at 4326 mining face is less than that at an ordinary length face, and in the different position of the super length face, the weighting interval is different. The idea of key stratum pressure is put forward, and the ground pressure is mainly influenced by the breakage of key stratum. The setting load of supports may be significantly improved by using two emulsion pumps in double circuit emulsion supply system, and the roof supporting situation in tip to face area can be also improved.

关 键 词：综放工作面 矿山压力 矿压显现 规律 顶板 采场 支梁 

分 类 号：TD323[矿业工程—矿井建设] TD823.97