长江科学院院报Issue(7)：77-81,5.DOI:10.3969/j.issn.1001-5485.2015.07.014
卡里巴水电站地下厂房区应力场回归分析及评价
Regression Analysis and Evaluation for the In-situ Stress Field of Kariba Hydropower Plant’s Underground Powerhouse
摘要
Abstract
In order to evaluate the in-situ stress field and surrounding rock stability of Kariba Hydropower Plant’s underground powerhouse,we employed multi-factor regression analysis method based on three-dimensional finite el-ement simulation in the regression fitting of measured data so as to obtain the distribution of stress field.The calcu-lated values could well fit the measured values,so the regression results were good.According to regression results, the stress field of underground powerhouse was mainly influenced by horizontal structural stress field and in low stress level due to the effect of topography and geomorphology,formation lithology and fault structure.The direction of maximum horizontal principal stress approximately paralleled to the long axis of the powerhouse,beneficial to the stability of surrounding rock.关键词
地下厂房/应力场/回归分析/有限元/围岩稳定Key words
underground powerhouse/stress field/regression analysis/finite element分类
建筑与水利引用本文复制引用
张新辉,尹健民,张向阳,脱兴华..卡里巴水电站地下厂房区应力场回归分析及评价[J].长江科学院院报,2015,(7):77-81,5.基金项目
国家重点基础研究发展计划973项目（2011CB710603）；国家自然科学基金项目（51204025）；中央级公益性院所基金项目 （）
