人民黄河Issue(3)：76-79,4.DOI:10.3969/j.issn.1000-1379.2014.03.025
南水北调西线工程岩体变形特性现场试验研究
In-Site Test Research on Deformation Characteristics of Rock Mass in West Route of South-to-North Water Transfer Project
摘要
Abstract
In-situ deformation test was carried out at the adits in Ada,Renda and Aan dam sites by the rigid pressure-bearing plate method,in or-der to obtain the deformation index of rock mass accurately. The results show that the elastic modulus and deformation modulus of rock mass at three dam sites are obviously influenced by lithology. The types of pressure and deformation curves are mostly lines or down concaves,which are correla-tive with joints,loading direction and integrity of rock mass and so on closely. The influences of loading direction and stress level on the deforma-tion characteristics of rock mass are analyzed. The deformation modulus increases with stress as a whole. Influenced by loading direction,the change law of elastic modulus with stress is not obvious. Contrasted analysis show that there are good correlativity among in-situ test results of de-formation characteristics of rock mass and seismic velocity results and proposed values given by specifications. The rock mass at the dam sites are classⅤ,and the in-situ test results of deformation characteristics of rock mass are credible and effective.关键词
岩体变形特性/弹性模量/变形模量/刚性承压板/南水北调西线工程Key words
deformation characteristics of rock mass/elastic modulus/deformation modulus/rigid pressure-bearing plate/west route of South-to-North Water Transfer Project分类
建筑与水利引用本文复制引用
闫长斌,刘振红,岳永峰..南水北调西线工程岩体变形特性现场试验研究[J].人民黄河,2014,(3):76-79,4.基金项目
“十一五”国家科技支撑计划项目（2006BAB04A06）；黄河勘测规划设计有限公司自主研究开发项目（2009-ky01）。 （）
