预施荷载对黏土法向冻胀力的影响分析  

Analysis on effect of pre-increasing load on the clay normal frozen-heave force

作　　者：徐华生[1] 姜龙[2] 

机构地区：[1]中国中铁四局集团有限公司第七分公司 [2]北京交通大学土木建筑工程学院

出　　处：《山西建筑》2009年第9期103-104,114,共3页Shanxi Architecture

摘　　要：通过加荷固结稳定后的冻胀试验,分析了上覆荷载对冻胀的影响,得出冻胀与法向冻胀力的产生是相辅相成的,最后,将低液限黏土的法向冻胀力的分级标准与现有规范对比,得出各冻胀性类别的法向冻胀力界限值基本相同。Based on the frozen-heave test under load after consolidation, the effect of load over on frozen-heave is analyzed and it is concluded that frozen-heave and normal frozen-heave force supplement each other, lastly, by comparing the classification standard of the normal frozen- heave force of low liquid-limit clay with present criterion, it is concluded that the limit values of all kinds of normal frozen-heave forces are almost the same.

关 键 词：低液限黏土 预施荷载 法向冻胀力 冻胀率 含水量 

分 类 号：TU411[建筑科学—岩土工程]