Analysis on Location of Ascending Stope Mining Roads and Section Coal Pillars Dimensions for Close Distance Seam in 1000m-Plus Deep Mine
For coal mine in the depth of 1100m, adopting bottoM slicing relieving mining is the effective way when many problems such as roof fragmentation, large deformation of gates surrounding rock encountered in the process of upper seams mining are to be solved. Research on the rational layout of actual mining roadway, is to ensure a prerequisite for successful ascending mining. On the basis of the detection of the height of overburden leading water fractured zone arising from the lower seam mining and the analysis on the stress-releasing effect of lower seam mining on upper seam, reasonable position of tailentry and headentry of the upper seam and open-off were analyzed by adopting the theory of pressure mines; through the establishment of structural mechanics model of stope, the reasonable-size of the coal pillar section of the upper seam was studied; Finally, through the engineering practice of five face, that the roadway layout of upper coal seam is reasonable was certificated.
deep mine close distance seam ascending mining means of roadway layout section coal pillars dimensions
Shi Yongkui Mo Ji Pang Jilu Jiang Jinquan
Postdoctoral Scientific Research Workstation of Xinwen Mineral Group, Xintai 271219, China Shandong Postdoctoral Scientific Research Workstation of Xinwen Mineral Group, Xintai 271219, China Shandong University of Science and Technology Key Laboratory of Mine Disaster Prevention and Control
国际会议
The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)
辽宁阜新
英文
187-190
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）