高地应力区洞室围岩开裂问题研究进展  

A review of the rock fracture in cavern under high in-situ stress

作　　者：王义昌[1,2] 卢文波[1,2] 陈明[1,2] 严鹏[1,2] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]武汉大学水工岩石力学教育部重点实验室,湖北武汉430072

出　　处：《水利水电科技进展》2015年第2期85-94,共10页Advances in Science and Technology of Water Resources

基　　金：国家杰出青年科学基金(51125037);国家自然科学基金(51279135);高校博士点基金(20110141110026)

摘　　要：综述了近年来国内外高地应力下地下洞室围岩开裂问题的研究进展,重点分析了围岩开裂机理、应力和应变开裂判据,总结了围岩开裂影响因素及工程实际中常用的微震监测、声发射监测等监测与监控手段和常用的数值模拟软件,并指出了当前研究中存在的主要不足之处,包括爆破开挖、邻洞开挖和中间主应力对围岩开裂的影响等,认为爆炸荷载与地应力动态卸荷耦合分析、连续与非连续耦合数值模拟及地下洞室动态设计等将是今后的研究重点和突破方向。In this paper,a review of recent research progress of rock fracture in underground cavern under high in-situ stress are presented. The mechanism of rock fracture,the stress and strain cracking criterions are thoroughly analyzed. The factors influencing the rock brittle fracture,the common methods of monitoring and control,such as micro-seismic monitoring,acoustic emission monitoring as well as the common numerical simulation softwares are summarized. In addition,the deficiencies of current research are pointed out,including the influence of blasting excavation,adjacent caverns excavation and the intermediate principal stress on the rock fracture. Finally,this paper proposed several major points and breakthrough directions for future research,such as the coupled analysis of the blast loading and the dynamic unloading of the stress, continuous and non-continuous coupled numerical simulation and the dynamic design of underground cavern.

关 键 词：地下洞室 围岩开裂 高地应力 开裂判据 围岩监测 数值模拟 

分 类 号：TD311[矿业工程—矿井建设]