Numerical simulation study on the rational width of coal pillar in roadway along goaf based on rock mechanical experiment
Taking the first face of 3102 work face of a colliery as research object,this study determined the lithology 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 goafwith 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.
Rock mechanics Roadway along goal Width of coal pillar Numerical simulation
Yan Xianghong Chen Shaojun
Shandong University of Science and Technology,Qingdao 266510,Shandong,China Shandong Lineng Xinhe Co.Ltd,Jining 272400,Shandong,China
国际会议
The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)
青岛
英文
379-384
2007-10-17（万方平台首次上网日期，不代表论文的发表时间）