摘要
膨胀土由于干湿循环而产生湿陷、胀缩等现象,经典饱和土力学理论难以给出合理解释。本文在归纳总结前人关于膨胀土弹塑性本构模型研究工作的基础上,对BBM(Barcelona Basic Mode)模型、BExM模型、以及Thermo-hydro-mechanical(THM)本构模型等的优缺点进行了分析探讨,并对它们作出简要的分析。
The behaviour of expansive soil cannot be described well by classical soil mechanical theory, such as collapse and swell-shrinking property during wetting and drying cycles. The state of the art in the elastoplasfic constitutive model for expansive soil is summarized, including BBM （Barcelona Basic Model）, BExM （Barcelona Expansive Model） , Thermo-hydro-mechanical （THM） and so on. The paper presents some brief analysis of these elastoplastic constitutive models.
出处
《广州建筑》
2009年第4期20-24,共5页
GUANGZHOU ARCHITECTURE
基金
国家自然科学基金(项目批准号:40772180
40728003)
国防科工委:THM耦合条件下的膨润土缓冲性能研究(科工计[2007]831号)
上海市地质工程重点学科(B308)
关键词
膨胀土
弹塑性本构模型
热-水-力
expansive soil
elastic-plasticitic model
Thermo-hydro-mechanical
