Simulation of Fault Effect on Mining Failure of Coal Seam Floor and Its Application in Water Disasters Controloft-com:office:office" />

• 责任者：Feng Qiyan (School1. Environment Science and Spatial Informatics ; China University of Mining and Technology ; Xuzhou 221116 ; China) ; Zhou Lai
• 刊名：Geological Journal of China Universities
• 出版年：2010
• 卷期：16(1)
• 关键词：煤层底板 ; coal seam floor ; 突水 ; water gushing
• 页码：p.19-25
• 图表：4 illus., 3 tables, 11 refs.
• 分类号：1701
• issnNo：ISSN1006-7493
• isbnNo：CN32-1440/P

Based on the theory of rock mechanics and seepage mechanics, numerical simulations were directed for revealing the failure evolution of the seam floor above the high pressure confined aquifer. Different fault factors such as fault depth and location controlling the failure of coal seam floor were discussed. Simulation results showed that failure depth for the fault model increased 20%-33% compared to the non-fault model. The fault zone, especially the area of 10 meters ahead of the fault to 15 meters behind the fault, must be paid more attention to. Accordingly, the grouting reinforced projects were designed for No. 11041, 11151, 11111 working faces in Liangbei coal mine. oft-com:office:office" />