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Volume 33 Issue 11
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XU Fei, XU Wei-ya, LIU Zao-bao, LIU Kang. Slope stability evaluation based on PSO-PP[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(11): 1708-1713.
Citation: XU Fei, XU Wei-ya, LIU Zao-bao, LIU Kang. Slope stability evaluation based on PSO-PP[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(11): 1708-1713.
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Slope stability evaluation based on PSO-PP

  • (1. Hainan Highway Survey and Design Institute, Haikou 570206, China; 2. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China; 3. Chengdu Hydroelectric Investigation and Design Institute of CHECC, Chengdu 610072, China)

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  • Published Date: November 14, 2011
    Graphical Abstract
    • Abstract
  • Evaluation of slope stability is a complex system problem with uncertainties. Based on the projection pursuit (pp), the particle swarm optimization (PSO) and the logistic curve function (LCF), a new model for evaluation of slope stability is developed, which is referred as projection pursuit based on particle swarm optimization (PSO-PP). The model, on the one hand, uses PSO to optimize the projection index function and the parameters of LCF. Thus it will ensure the accuracy of the parameters used in the model. On the other hand, the nonlinear relationship between projection values and empirical grades is established according to LCF. The test results show that the proposed model has good precision. In this study, the evaluation results obtained by applying the developed model to Jinping I Hydropower station on the Yalong River are well consistent with the practical situation. It indicates that the model is feasible and effective in the evaluation of slope stability.
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