Application of rock mechanics to enhance mine profitability:case studies
Although the science of rock mechanics and ground control have matured significantly over the past two decades to assist with mine planning and design,and solve ground control problems,its applications to enhance mine profitability are still limited. For example,mining layouts for partial extraction are essentially the same and attempts to change them for higher extraction ratio or improved ground control are sparse. Mining support systems still involve timber as an essential component with minimal use of mining wastes to develop structural supports. Roof bolting support systems have grown heavier and more expensive with no consideration for strata to be more self supporting. During the last 10 years,the author has directed research to improve profitability of mines through the use of scientific principles of rock mechanics and ground control. These are discussed through a brief discussion of several case studies.These include enhanced profitability though 1) utilization of alternate mining geometries,2) coal combustion byproducts-based artificial supports and 3) increased extraction and partial backfilling.
Alternate mining geometry ground control coal combustion byproducts artificial supports partial backfilling paste back-fill
Yoginder P.Chugh
Department of Mining and Mineral Resources Engineering,and Director,Combustion Byproducts Recycling Consortium,Midwestern Region Southern Illinois University Carbondale,Illinois 62901-6603,USA
国际会议
北京
英文
777-792
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）