山东煤炭科技Issue(12)：66-68,3.DOI:10.3969/j.issn.1005-2801.2016.12.028
圆形巷道完整围岩最小支护阻力计算
Calculation of minimum support resistance of intact surrounding rock in circular tunnel
摘要
Abstract
In order to study the critical condition of the stress drop of the ideal elastic-plastic model, the equivalent effect is introduced. The stress ifeld, displacement ifeld and equivalent strain of rock of circular tunnel are calculated based on the theory of elastic plasticity and Mohr-Coulomb principle. The rock is at the critical failure state when the equivalent strain is equal to the critical equivalent strain, and the support resistance is the minimum support resistance when the rock is not damaged. Providing some reference for the selection of resistance of roadway support.关键词
理想弹塑性/圆形巷道/等效应变/最小支护阻力Key words
ideal elastoplastic/circular tunnel/equivalent strain/support resistance分类
矿业与冶金引用本文复制引用
陈彬,张向阳..圆形巷道完整围岩最小支护阻力计算[J].山东煤炭科技,2016,(12):66-68,3.基金项目
国家自然科学基金资助项目（51504007，51574007）；安徽省高等学校省级自然科学研究重点资助项目（KJ2013A098）；中国煤炭工业协会科学技术研究指导性计划项目(MTKJ2015-308)；深井瓦斯抽采与围岩控制技术国家地方联合工程实验室开放基金资助项目(G201617)。 （MTKJ2015-308）
