土壤冻胀离心模拟试验  

Centrifuge modelling tests of soil freezing heave

作　　者：陈湘生[1] 濮家骝[2] 罗小刚[1] 殷昆亭[2] 

机构地区：[1]煤炭科学研究总院,北京100013 [2]清华大学水利水电系,北京100084

出　　处：《煤炭学报》1999年第6期615-619,共5页Journal of China Coal Society

基　　金：国家自然科学基金!资助项目(59679011)

摘　　要：介绍了在清华大学离心机上进行的土壤冻胀离心模拟的模型模拟试验、４０ｇ 下离心模拟重复试验等初步试验成果． ３０ ｇ 和４０ ｇ 下的土壤冻结模型模拟试验结果一致， 说明土壤冻胀离心模拟试验中热传导缩比关系正确． ４０ ｇ 下土壤有／ 无荷离心模拟重复试验结果相近， 说明土壤冻融离心模拟试验的可行和可靠性．The results of the first centrifuge modelling tests in China of soil freezing and thawing are introduced. Results of modelling of models for soil freezing under 30 g and 40 g respectively are almost identical, which confirms that the scale laws for heat transferring in soil are correct in centrifuge modelling tests. Results of repeat tests of frozen soil displacement at different foundation loading under 40 g are very close to each other, which shows that the centrifuge test equipment at Tsinghua University for cold regions engineering is reliable.

关 键 词：土壤 冻胀融沉 离心模拟 冻土地基 

分 类 号：TU445[建筑科学—岩土工程]