采矿与安全工程学报2015，Vol.32Issue(6)：929-935,7.DOI:10.13545/j.cnki.jmse.2015.06.010
错层位巷道围岩能量耗散分析
Analysis of energy dissipation for stagger arrangement roadway surrounding rock
摘要
Abstract
Based on the analysis of the expression of the external work in lateral coal fractured zone, plastic zone and increasing zone of elastic stress, the corresponding energy dissipation formulas have been deduced, applying the first law of thermodynamics. The damage variable which is the ratio of energy dissipation value and external forces work for surrounding rock has been determined. Conse-quently, conclusions have been drawn that damage variable continuously decreases from fractured zone to plastic zone, till to increasing zone of elastic stress. For energy dissipation, it is similar to damage va-riable. Mineral pressure observation of stagger arrangement workface in Zhenchengdi mine shows that roadway has less support pressure in fractured zone, making it easy to maintain. When loose gangue is above roadway, it will produce compression deformation and plastic deformation under the action of support pressure. Its energy dissipation is bigger, making it easier to maintain.关键词
能量耗散/错层位/巷道Key words
energy dissipation/stagger arrangement/roadway分类
矿业与冶金引用本文复制引用
张俊文,拾强,刘志军,李兴伟,赵景礼..错层位巷道围岩能量耗散分析[J].采矿与安全工程学报,2015,32(6):929-935,7.基金项目
国家自然科学基金项目(51574114) （51574114）
黑龙江教育厅基金项目(12531570) （12531570）
黑龙江省普通高校采矿工程重点实验室开放课题项目(2013-KF05) （2013-KF05）
中国博士后科学基金项目(2014M551290) （2014M551290）
黑龙江省博士后科学基金项目(LBH-Z13208) （LBH-Z13208）
