Similarity criteria and coal-like material in coal and gas outburst physical simulation
Bo Zhao
Guangcai Wen
Haitao Sun
Dongling Sun
Huiming Yang
Jie Cao
Linchao Dai
Bo Wang
摘要：Coal and gas outburst is one of the main gas hazards in coal mines.However,due to the risks of the coal and gas outburst,the field test is difficult to complete.Therefore,an effective approach to studying the mechanism and development of outburst is to conduct the similar physical simulation.However,the similarity criteria and similar materials in outburst are the key factors which restrict the development of physical simulation.To solve those problems,this paper has established similarity criteria base on mechanics model,solid-fluid coupling model and energy model,and presented high similar materials.Combining with three groups of similar number,and considering similar mechanical parameters and deformation and failure regularity,the similarity criteria of outburst is determined on the basis of the energy model.According to those criteria,we put forward a similar material consists of pulverized coal,cement,sand,activated carbon,and water.The similar material has high compressive strength and the accordant characteristics with the raw coal,include density,porosity,adsorption,desorption.The new research is promising for preventing and controlling gas hazards in the future.
机标关键词：
资助基金：This work was financially supported by the National Key Research and Development Program(2016YFC0801402-4)the National Natural Science Foundation of China(51374236)the National Natural Science Foundation of China(51574280)Chongqing Frontiers and Application-based Research Program (cstc2015jcyjBX0076)
论文发表日期：2018-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：12( 167-178 )
英文信息