摘要
多年冻土和季节性冻土属于不良工程地质条件,其物理特性、力学和热学性能决定了冻胀和融沉工程病害对线路基础稳定性的影响程度。系统介绍了新疆皇吉220 kV输电线路天山段多年冻土原位直剪试验、融化压缩试验、静载荷试验试验方法及其研究成果,从而为该地区输变电线路基础型式选择与设计优化提供了具有较高价值的参考资料。
The permafrost or seasonal frozen soils are undesirable engineering geologic condition and the frost heave and thawing settlement will influence the stability of foundations.The Huangji 220 kV transmission line passes Tianshan permafrost region of Xinjiang.The field shear test,the field thawing compression test and the field static loading test in this region are systematically described.All these field test results provide firsthand data about characteristics of the frozen soil ground in this region and a basis for optimizing the design.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第z1期4383-4387,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
土力学
输电线路
多年冻土
基础
强度
原位试验
soil mechanics,transmission line,permafrost,foundation,strength,field test
