考虑诱发各向异性的花岗岩残积土硬化土模型参数研究  

Parameter Study on Hardening Soil Model of Granite Residual Soil under Induced Anisotropy

作　　者：郭力群[1] 黄耀星[1] 程玉果[1] 

机构地区：[1]华侨大学土木工程学院,福建厦门361021

出　　处：《华侨大学学报（自然科学版）》2013年第2期201-204,共4页Journal of Huaqiao University(Natural Science)

基　　金：国家自然科学基金资助项目(51178196);国务院侨办科研基金资助项目(09QZR03)

摘　　要：通过花岗岩残积土在原位有效自重应力下的固结(简称K0固结)排水三轴剪切试验和三向等压固结排水三轴剪切试验,分析诱发各向异性状态对花岗岩残积土硬化土模型(HS模型)参数的影响,并探讨K0固结排水三轴剪切试验所得HS模型参数在花岗岩残积土基坑工程数值分析中的适用性.研究结果表明:诱发各向异性对花岗岩残积土HS模型参数产生影响,诱发各向异性状态下的花岗岩残积土HS模型参数应用于实际基坑工程的数值分析可获得更加准确的预测结果.The triaxial tests under both K0 consolidation and isotropic consolidation were conducted to analyze the influences of induced anisotropy on the parameters of HS model for granite residual soil, and applicability of this set of parameters for foundation pit engineering of granite residual soil was discussed too. The results show that induced anisotropy influences the parameters of HS model for granite residual soil; when using this set of model parameters in the foundation pit engineering of granite residual soil, more accurate prediction results can be obtained.

关 键 词：诱发各向异性 硬化土模型 K0固结 花岗岩残积土 基坑 

分 类 号：TD853.34[矿业工程—金属矿开采]