American Society of Civil Engineers


Upper Bound Stability Analysis for Soil Slope with Non-Associated Flow Rule


by Zhi-gang Zhao, (Civil Engineer, China Railway Seven Engineering Group Co. , Ltd , Zhengzhou, Henan Province, People’s Republic of China. E-mail: zzg71@163.com), Lian-heng Zhao, Ph.D., (Lecturer, School of Civil and Architectural Engineering, Central South University, Changsha, Hunan Province, People’s Republic of China. E-mail: zlh8076@163.com), Huang Fu, (Doctoral Candidate, School of Civil and Architectural Engineering, Central South University, Changsha, Hunan Province, People’s Republic of China. E-mail: hfzndx2002@yahoo.com.cn), and Feng Yang, Ph.D., (Lecturer, School of Civil and Architectural Engineering, Central South University, Changsha, Hunan Province, People’s Republic of China. E-mail: yf5754@126.com)
Section: Slope Stability Evaluations, pp. 9-16, (doi:  http://dx.doi.org/10.1061/47627(406)2)

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Document type: Conference Proceeding Paper
Part of: Slope Stability and Earth Retaining Walls
Abstract: The non-associated flow rule was introduced by means of modification shear strength parameters and a kinematically admissible velocity field was considered for slope stability analysis. The effectiveness and validity of the analysis method in this paper was illuminated through a case study. Comparative analysis has shown that the proposed method gives better calculation results. The results show that the consideration of parameters of non-associated flow rule plays a remarkable role on the slope stability. Therefore, the presumption that geomaterials subject to associated flow rule takes disadvantageous influence on evaluating the real stability characteristics of slope.


ASCE Subject Headings:
Slope stability
Soil stabilization