American Society of Civil Engineers


Comparison Study on Expansive Soil and Red Clay Creep Model


by Hongbin Xiao, (Professor, Geotechnical and Foundation Engineering, Central South University of Forestry and Technology, Changsha, Hunan, P.R. China 410004. E-mail: tfnxhb@sina.com.cn), Ke Teng, (Postgraduate, Central South University, Changsha, Hunan, P.R. China 410008. E-mail: abaddontank@126.com), Hao Xu, (Postgraduate, Design and Research Institute of Henan Petroleum Exploration Bureau of China Petrochemical Corporation, Nanyang, Henan Province, P.R. China 473132. E-mail: xjh821016@163.com), and Wenting Jin, (Postgraduate, Institute of Geotechnical Engineering, Hunan University of Technology, Zhuzhou, Hunan Province, P.R. China. E-mail: jwjjwx@163.com)

pp. 133-140, (doi:  http://dx.doi.org/10.1061/47628(407)17)

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Document type: Conference Proceeding Paper
Part of: Advances in Unsaturated Soil, Geo-Hazard, and Geo-Environmental Engineering
Abstract: A series of compression creep and unloading tests have been conducted for unsaturated Nanning expansive soils and red clay. The creep and rebounding curves of different soil samples are obtained and compared. According to the characteristics of the curves, the multi-component visco-elastic-plastic creep model for expansive soils and red clay are proposed, respectively. The relevant parameters in both models are measured from the tests. It is showed that the calculated curves fit well with the measured curves, which proves the correctness of the proposed models and provides reliable theoretical basis for analyzing the deformation and strength behaviors of expansive soils.


ASCE Subject Headings:
Comparative studies
Expansive soils
Creep
Clays