›› 2016, Vol. 37 ›› Issue (3): 827-834.doi: 10.16285/j.rsm.2016.03.027

• Geotechnical Engineering • Previous Articles     Next Articles

Back analysis of shear strength parameters based on Excel spreadsheet and upper bound limit analysis method

CHEN Jing-yu1, 2, ZHAO Lian-heng1, LI Liang1, TAN Han-hua3   

  1. 1. School of Civil Engineering, Central South University, Changsha, Hunan 410075, China; 2. School of Railway Tracks and Transportation, East China Jiaotong University, Nanchang, Jiangxi 330000, China; 3. Guizhou Communication Planning and Prospecting Design Academy, Guiyang, Guizhou 550001, China
  • Received:2014-07-01 Online:2016-03-11 Published:2018-06-09
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (51208522), the Postdoctoral Science Foundation of China (2012T50708), the Foundation of Guizhou Provincial Transportation Department, China (2012122033) and the Foundation of Science and Technology Department of Hunan Province, China (2012SK3231).

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Abstract: To overcome the inefficiency that not less than two landslide sections are required in the back analysis of shear strength parameters based on the traditional slope stability analysis method, a new method is developed for back analyzing soil strength parameters based on the probability reliability theory, by combining the Excel spreadsheet method and the upper bound limit analysis method. The proposed method is applied to back analyze Zhuequedong landslide in Hunan province. The results indicate that the shear strength parameters of slip surface obtained by the proposed method are in good agreement with the measured data of the engineering site. The applicability of the new analytical method is verified. Based on this method, the inverse problem of shear strength parameters of a single slip surface can be resolved by using the measured data of only one landslide section, showing the effectiveness of the proposed method.

Key words: slope engineering, shear strength parameters, back analysis, spreadsheet method, upper bound limit analysis

CLC Number: 

  • P 642

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