Study of dynamic pressure roadway supporting scheme under condi- tion of thick composite roof  

作　　者：Wei-Jun WANG Li-Qiang LUO Wei-Jian YU Hai WU Yan-Si QU 

机构地区：[1]Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology,Xiangtan 411201, China

出　　处：《Journal of Coal Science & Engineering(China)》2013年第2期119-125,共7页煤炭学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （51074071）; the Scientific Research Fund of Hunan Provincial Education Department （12cy013）

摘　　要：This paper analyzed the strata behaviors of solid-coal roadway, gob-side entry driving and deformation law of surrounding rock in depth under high stress and thick composite roof based on the dynamic pressure roadway as engineering background in Fengcheng mining area, Jiangxi province. The results, both field measurement and numerical simulation show that gob-side entry driving results the deformation of coal roadway main wall, however, entity-coal roadway driving results deformation of main roof and floor. The maintenance state of gob-side entry driving is better than entity-coal roadway, this situation is relevant to thick composite roof layered and easy collapse characteristics. At the same time, this paper put fox＇ward and proved proper dynamic pressure roadway supporting scheme under the surrounding rock condition and stress environment.

关 键 词：thick composite roof dynamic pressurized roadway high stress surrounding rock control 

分 类 号：TD322[矿业工程—矿井建设] TD353.6