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等应力比路径下粗粒土湿化试验研究

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Indexed by:期刊论文

Date of Publication:2021-03-23

Journal:岩土工程学报

Volume:41

Issue:4

Page Number:648-654

ISSN No.:1000-4548

Key Words:粗粒土;等应力比路径;湿化变形;橡皮膜嵌入量;参考应力水平;体积应变

Abstract:采用古水面板坝玄武岩堆石料进行了等应力比路径下的粗粒土湿化试验.试验结果表明,在等应力比路径下的土体的湿化变形不仅受应力状态的影响还受加载应力路径的影响.在传统湿化变形公式中引入应力路径参量,并采用体积应力和参考应力水平描述应力状态对湿化变形的影响,建立了等应力比路径下的湿化变形公式.所建立的湿化变形公式能够很好地描述等应力比路径下的粗粒土湿化变形.

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