51-72 Coal Seam Section Stability Quantitative Evaluation Based on Double Weight

摘要：

Coal seam section stability was regarded as a gray system in this article. Fault fractal dimension, uniaxial compressive strength, plane deformation coefficient of fold and lithology combination value were put forward as evaluation indexes, and degree weight and factor weight of all indexes were calculated. Based on these, 51-72coal seam section stability was evaluated by fuzzy synthesis evaluation. The results suggest that the fault fractal dimension weight is 0.3166, and it is the maximum in the 4 factors. Extremely unstable area and unstable area accounts for 65％, relative stable area accounts for 25％, and stable area accounts for 10％. It is concluded that evaluation results agree with the revealed exposing situation, and supply scientific basis for roadways layout and choice of support patterns.

关键词： Coal seam section Fault fractal dimension Double weight Quantitative evaluation

作者: FENG Songbao LI Xianqin WU Jiwen QIU Guoliang

作者单位: State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, B School of Earth and Environment, AnHui University of Science and Technology,Huainan,232001 ,China

会议类型: 国际会议

会议名称: 2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)

会议地点: 青岛

会议语种:英文

页码: 590-595

在线出版日期: 2010-10-15（万方平台首次上网日期，不代表论文的发表时间）