南宁膨胀土考虑固结与蠕变耦合的变形特性研究  

Experimental Study on Deformation of Nanning Expansive Soil Considering Consolidation and Creep Coupling

作　　者：肖宏彬[1] 滕珂[1] 许豪[1] 范志强[1] 

机构地区：[1]湖南工业大学岩土工程研究所,湖南株洲412008

出　　处：《湖南工业大学学报》2009年第5期1-4,共4页Journal of Hunan University of Technology

基　　金：湖南省自然科学基金资助项目(08JJ3092);湖南省教育厅科研基金资助重点项目(07A017)

摘　　要：针对广西南宁膨胀土进行固结与蠕变耦合试验研究,探讨了非饱和膨胀土固结与蠕变变形特性,并且得到了对数形式的考虑固结与蠕变耦合的方程,拟合曲线与实测曲线较为吻合。考虑固结效应的蠕变方程比用流变模型得到的蠕变方程更符合膨胀土的实际情况,研究成果为分析膨胀土提供了新的理论方法。In view of experimental study of consolidation and creep coupling of Nanning expansive soil, explores the creep and consolidation characteristics of unsaturated expansive soils, obtains logarithmic form equations considering the consolidation and creep coupling, and firing curves fit very well with the measured curves. Moreover, the creep equation considering consolidation effect is more in line with the actual situation of expansive soil than the equation obtained from rheological model. The research provides a new theoretical method for the deformation analysis of expansive soil.

关 键 词：蠕变 固结 耦合 对数 

分 类 号：TU443[建筑科学—岩土工程]