台州湾新区软土小应变硬化模型参数试验研究  

Experimental Study on Parameters of the HSS Model for Taizhou Soft Clay

作　　者：陈志军 朱晨 潘晓东[2] 潘坤 CHEN Zhijun;ZHU Chen;PAN Xiaodong;PAN Kun(Fangyuan Construction Group Corporation,Taizhou 318000,China;College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]方远房地产集团有限公司,浙江台州318000 [2]浙江工业大学土木工程学院,杭州310014

出　　处：《工业建筑》2024年第12期186-193,共8页Industrial Construction

基　　金：浙江省自然科学基金项目(LTZ21E080001);浙江省建设科研项目(2023K151)。

摘　　要：土体小应变硬化(HSS)模型可考虑小应变范围内土体的非线性特性,在基坑开挖等岩土工程精细化数值分析中得到了广泛运用。通过一系列三轴剪切试验、共振柱试验和标准固结试验,对台州湾新区典型土层的HSS模型参数进行标定,探讨各土层模型参数间的比例关系,并与国内其他典型软土地区的数据进行比较,验证相关参数的合理性,进一步确定相关参数与土体初始孔隙比间的经验关系。研究结果可用于计算开挖产生的变形,并为其他区域软土HSS模型参数确定提供参考。The Hardening Soil Small strain(HSS)model,which can consider the nonlinear performances of soil in the small strain range,has been widely used in the numerical analysis of geotechnical engineering.The HSS model parameters for Taizhou soft clay were elaborately calibrated by series of triaxial shear tests,resonant column tests,and standard consolidation tests.The proportional relations of parameters for soils derived from different layers were established,which was then compared with those of soft soil in other typical areas of China,and the rationality of the relations was verified.The empirical relations between the related perameters and initial void ratios of soil were determined further.The findings could be used to calculate the deformation caused by excavation in soft clay strata.The method could also provide reference to determining parameters of soil for the HSS model in other areas.

关 键 词：软土 HSS模型 参数标定 三轴试验 共振柱试验 

分 类 号：TU447[建筑科学—岩土工程]