黑龙江科技学院学报2013，Vol.23Issue(2)：145-148,4.DOI:10.3969/j.issn.1671-0118.2013.02.009
大采高回采巷道围岩的塑性区分布
Plastic distribution of surrounding rock in big height mining gateway
摘要
Abstract
Aimed at addressing greater deformation and more widely loosened ranges occurring in mining gateway of greater height, this paper builds on the data derived from No 145 coal face of Cheng Shan coal in Longmei Group and discusses the research on plastic zone of the surrounding rock of roadway and an analysis of the relationship between plastic stress distribution and roadway height using methods of field observation, theoretical analysis, and finite element simulation. The results show that an increase in tunnel height produces a continual increase in plastic zone of surrounding rock, in the order of decreasing increment, as happens in plastic zone of two walls, in floor and in plastic zone roof. The study serves as a reference for the actual engineering practice.关键词
回采巷道/塑性区/有限元Key words
mining gateway/ plastic distribution/ finite element分类
矿业与冶金引用本文复制引用
陈刚,孙广义,王琼..大采高回采巷道围岩的塑性区分布[J].黑龙江科技学院学报,2013,23(2):145-148,4.基金项目
国家自然科学基金项目(51074068) （51074068）
