Numerical simulation study on the rational width of coal pillar in roadway along goaf based on rock mechanical experiment

被引：0

作者：

Yan Xianghong ^{[1
]}

Chen Shaojun ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Qingdao 266510, Shandong, Peoples R China

来源：

MINE HAZARDS PREVENTION AND CONTROL TECHNOLOGY | 2007年

关键词：

rock mechanics; roadway along goaf; width of coal pillar; numerical simulation;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Taking the first face of 3102 work face of a colliery as research object, this study determined the litholog'y parameters of No.3 coal seam and its roof and floor rock stratum through conventional triaxial compression test, and simulated the surrounding rock deformation, stress distribution and plastic zone of roadway along next goaf with different size of pillar (with in 2m to 6m) through FLAC-2d. In this way, the rational width of coal pillar in roadway along, goaf of: fully mechanized caving face with complex structure can be determined, and it can takes more space for the development of mine and reduce the waste of coal resource.

引用

页码：379 / 384

页数：6