Stability analysis of temporal correlation of filling bodys

摘要：

　　On the basis of establishing mechanics model, viscoplasticity theory and principle of minimum potential energy, temporal correlation of the filling body was analyze.The necessary conditions of the filling bodys stability and the formula of minimum steady time were obtained.Theory analysis shows that the filling bodys steady time decreases with the increase of plastic area;when elastic modulus, hardening parameter and coefficient of viscosity are exogenously decided.The filling bodys steady time decreases with the increase of elastic modulus, and increases with the coefficient of viscosity.Gradual failure theory indicates that plastic range of filling body has a close relationship with in-situ rock stress, it provides theoretical basis for parameter selection and design of the gob-side entry retaining.

关键词： filling body temporal correlation bingham model

作者: FU Bao-jie

作者单位: School of Mining and Safety, Anhui University of Science and Technology, Huainan 232001, China;Key Laboratory of Safety and High-efficiency Coal Mining,Ministry Education, Anhui University of Science and Technology, Huainan 232001, China

会议类型: 国际会议

会议名称: International Mining Conference 2014(2014国际采矿论坛)

会议地点: 安徽淮南

会议语种:英文

页码: 86-89

在线出版日期: 2014-09-19（万方平台首次上网日期，不代表论文的发表时间）