基于流变分析的软岩回采巷道全程变形规律研究  

Study on the deformation law in the complete service stage of roadway in soft rock based on rheological analysis

作　　者：南培珠[1] 宋永杰[2] 王金安[2] 

机构地区：[1]中国矿业大学(北京),北京100083 [2]北京科技大学,北京100083

出　　处：《中国矿业》2009年第4期62-65,共4页China Mining Magazine

摘　　要：由于巷道围岩的流变特性,掌握和预测软岩巷道变形规律,对于巷道支护和整个巷道在服役期间的安全性就显得非常重要。本文采用单轴分级加载条件下的流变试验、理论推导及现场监测结果,运用遗传算法,选择和确定合理的流变模型和参数,建立了巷道围岩流变力学模型,确定出巷道流变产生的位移量的大小,结合现场监测,最终准确得到软岩巷道在不同服役期的全过程变形规律。Due to the rheologic properties of surrounding rock mass,it is of great significance to understand and predict the roadway deformation in both roadway support practice and the safety of roadway in the whole service stage.In this paper,the multi-stage load creep tests were selected to determine the creep property,and the genetic algorithm was employed for establishing the parameters required in the creep mechanic model.Combined with site monitoring,the deformation induced in the complete process of roadway in the soft rock mass was accurately described.

关 键 词：流变分析 软岩巷道 全过程 变形 

分 类 号：TD322[矿业工程—矿井建设]