煤矿安全2011,Vol.42Issue(10):8-11,4.
煤柱与充填体耦合作用力学机理研究
The Mechanics Research of Coal Pillar and Backfill Coupling Function
摘要
Abstract
A mechanics model of coal pillar and backfill coupling function is established, the elastic solution of coal pillar and backfill coupling function is deduced by using Rize method, and analyze the effect which the depth of coal pillar on the displacement of coal pillar in two cases where filling and not. Then we get the laws of how the maximum horizontal displacement of coal pillar changes with the width of coal pillar and the modulus of elasticity of filling body changing. Simultaneously, we get the viscoelastic solution of coal pillar and backfill coupling function by Burgers riaeological models, and get two laws:changes in the maximum horizontal displacement with time ; changes in maximum horizontal displacement with width of coal pillar and the modulus of elasticity of filling body changing, which provide the reliable references for the design and research of filling roadway mining engineering.关键词
充填巷采/煤柱稳定性/煤柱宽度/流变Key words
filling roadway mining/stability of coal pillar/pillar width/rheology分类
矿业与冶金引用本文复制引用
马超,茅献彪,李强,郭晓倩..煤柱与充填体耦合作用力学机理研究[J].煤矿安全,2011,42(10):8-11,4.基金项目
基金项目:国家重点基础研究发展计划(973计划)资助项目(2007CB209400 ()
2010CB209400) ()
国家自然科学基金资助项目 ()
国家自然科学青年基金资助项目 ()