摘要
为了研究巷道围岩破裂的危险性与工程地质的相关性,借助弹塑性力学的复变函数方法求解了巷道围岩的应力函数,然后深入研究了高应力回采巷道围岩破裂机理,提出以危险函数来评价巷道围岩破裂的危险性和确定巷道破裂时的滑移面分布特征的方法,得到回采巷道的实用控制技术,此法具有使用性广、计算简便的优点.
To study the relation between the rupture risk degree of the surrounding-rock and the engineering geological condition, the stress function of the roadway surrounding rock is obtained by using the complex function theory of elastic-plastic mechanics in this paper, then the rupture mechanism of the high stress roadway is studied. It is shown that the risk degree of the surrounding-rock and the slip distribution when the roadway bursts can be determined by a function of danger, which is a practical control technology of the extraction roadway with advantages of being used widely and calculated simply.
出处
《力学与实践》
CSCD
北大核心
2011年第6期50-54,共5页
Mechanics in Engineering
基金
国家重点基础研究发展计划(973)(2010CB226805)
国家自然科学基金(50874103)
国家重点实验室开放基金(SKLGDUEK0905)资助项目
关键词
破裂机理
危险系数
控制
高应力
回采巷道
rupture mechanism, risk factors, control, high stress, extraction roadway
