American Society of Civil Engineers


Freeze-Thaw Stability of Slopes in Seasonally Frozen Regions of the Northeast China


by Lina Wang, (Institute of Subgrade and Protection Engineering, Harbin Institute of Technology, P.O. Box 150090, City, Harbin, P.R. China E-mail: wlnyongji@126.com), Xianzhang Ling, (Institute of Subgrade and Protection Engineering, Harbin Institute of Technology, P.O. Box 150090, City, Harbin, P.R. China E-mail: wlnyongji@126.com), Feng Zhang, (Institute of Subgrade and Protection Engineering, Harbin Institute of Technology, P.O. Box 150090, City, Harbin, P.R. China E-mail: wlnyongji@126.com), Xia Gao, (Institute of Subgrade and Protection Engineering, Harbin Institute of Technology, P.O. Box 150090, City, Harbin, P.R. China E-mail: wlnyongji@126.com), and Liquan Wu, (School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, P.O. Box 310023, City, Hangzhou, P.R. China E-mail: wuliquan1966@163.com)
Section: Transportation Safety, pp. 1-7, (doi:  http://dx.doi.org/10.1061/41064(358)133)

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Document type: Conference Proceeding Paper
Part of: ICCTP 2009: Critical Issues In Transportation Systems Planning, Development, and Management
Abstract: The finite element analysis is used to investigate the effects of initial water content, freezing temperature and freeze-thaw layer thickness on the stability of the thawing slope in a seasonally frozen region of Northeast China. The finite element method with shear strength reduction technique is used to evaluate the stability of slopes under the freeze-thaw processing. The numerical results indicated that the slope stability decreases with increasing initial water content, debasing freezing temperature, increasing freeze-thaw layer thickness and thawing depth. Initial water content has the biggest influence on the slope stability. The above results enrich the investigations on the freeze-thaw stability of slopes in the seasonally frozen areas and provide the instructions for engineering practice controlling the freeze-thaw stability of slopes.


ASCE Subject Headings:
Slopes
Freeze and thaw
Cold regions
China