主 办：爆炸科学与技术国家重点实验室
安全与防护协同创新中心
报告题目 ： Stratified Roadway Roof Stability in Underground Coal Mines – Analytical Model and Case Studies
报告人： Prof. Hani Mitri
McGill University, Canada
报告时间：2015年10月16日上午9:00
报告地点： 爆炸科学与技术国家重点实验室二层会议室
报告人简介：
Dr. Hani Mitri is Professor and Director of Mining Engineering at McGill University in Montreal, Canada. His research and teaching activities focus on rock mechanics, rockburst, rock supports, coal mining, rock slopes, mine design and mine safety. During his career, he supervised 21 Ph.D. and 22 Master’s students, as well as many visiting scholars from China, India and France. He has published more than 220 papers in refereed journals and conference proceedings. In 1988, he established the Mine Design & Numerical Modeling Laboratory, which is financially supported by Canadian Government research agencies and Canadian mining companies. He is a visiting professor at China University of Mining and Technology in Beijing and Henan Polytechnic University in Jiaozuo. He is associate editor of the Canadian Geotechnical Journal, South African Institute of Mining and Metallurgy (SAIMM), International Journal of Mining, Reclamation and Environment (IJMRE), and International Journal of Mining and Mineral Engineering (IMME). He was awarded the Canadian Institute of Mining Fellowship in 2014, and the John Franklin Rock Mechanics Award in 2015.
报告摘要：
The stability of roadway roof has been a long-standing issue in underground coal mines and thus has received a great deal of attention by both researchers and practitioners over the past few decades. This paper presents a simple analytical model for stratified roadway roof stability analysis. The model treats the immediate roof stratum of the roadway as an elastic beam resting on Winkler-type foundation and subjected to uniform roof loading that is determined from the lithology and depth of overlying strata. The developed model calculates bending stresses and deflections of the roof beam. Two case studies from an underground coal mine are used to demonstrate the model. A model parametric study reveals that the coal foundation elasticity plays a key factor in roof deformation and potential failure. Field monitoring data is used to validate analytical model results, and the comparison shows good agreement.
