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2019 Vol. 25, No. 2
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Tangjin YE, Qiang XIE, Ying WANG. STABILITY INVESTIGATION AND TREATMENT EVALUATION OF SLOPES IN THE EASTERN TIBET SECTION OF THE SICHUAN-TIBET HIGHWAY[J]. Journal of Geomechanics, 2019, 25(2): 233-239. doi: 10.12090/j.issn.1006-6616.2019.25.02.022
Citation: Tangjin YE, Qiang XIE, Ying WANG. STABILITY INVESTIGATION AND TREATMENT EVALUATION OF SLOPES IN THE EASTERN TIBET SECTION OF THE SICHUAN-TIBET HIGHWAY[J]. Journal of Geomechanics, 2019, 25(2): 233-239. doi: 10.12090/j.issn.1006-6616.2019.25.02.022
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STABILITY INVESTIGATION AND TREATMENT EVALUATION OF SLOPES IN THE EASTERN TIBET SECTION OF THE SICHUAN-TIBET HIGHWAY

  • 1.

    Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

    School of Engineering, Tibet university, Lhasa 850000, Tibet, China

Received Date:  03 February 2018
Revised Date:  23 June 2018
    Abstract
  • The eastern Tibet section of Sichuan-Tibet Highway is always suffered by unstable slopes even after years of repeated governance. In order to solve this urgent problem, a good knowledge of all slope data and slope treatment status of this area must be obtained. Totally 204 slopes along the Highway have been investigated in detail for three years. The present situation of slope treatment was counted, and its characteristics were analyzed distinguish by soil and rock landslides. Based upon data, factors causing slope instability were analyzed, and slope stability evaluation model was established using random forest method. The importance of influencing factors for slope stability and stability of all slopes were calculated by the model, and the model test showed that the accuracy was over 94.44%. The study results of this article could be used in the engineering management of highway works department. Also, suggestions are proposed on the management of highway slope based on the field investigation.
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