Some large values of in-situ stress and related engineering geological problems in China
作者单位：Department of Energy Systems EngineeringSeoul National UniversitySeoul 151-744Republic of Korea
会议名称：《中国科学院地质与地球物理研究所第十届(2010年度)学术年会》
会议日期：2011年
学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
基 金：supports from the Special Funds for Major State Basic Research Project underGrant No. 2010CB732001 the Brain Korea 21 Project in 2008 and the Research Institute of Engineering Science,Seoul National University
关 键 词：in-situ stress case examples engineering geological problems
摘 要：In recent years,different methods have been applied to in-situ stress estimation for stability analysis of increasing large-scale tunnels in *** was found that some extraordinary stress values are mostly associated with,although not a necessity of,engineering geological problems such as collapse,rock burst and *** paper focuses on finding the relationship among abnormal in-situ stress component *** exposure in ground surface with unloading and erosion contributes a lot to relatively higher horizontal stress and lateral coefficient values of igneous and metamorphic rocks,while this situation is not the case for sedimentary *** stress data and connecting some abnormal values with typical case examples for better understanding and estimating stress is the main feature of this paper.