Abstract:

In order to resolve the problem of steady-state comprehensive evaluation of landslide through engineering treatment, the model of comprehensive evaluation is constructed and used to implement steady-state decision analysis and treatment effect evaluation of landslide after comprehensive treatment. The determination method of coupling weight value which is based on precedence relation sequence and binary relative comparison is proposed. Simultaneously, the method which needn’t consistency test can reduce subjectivity and improve scientific rationality. Moreover, in order to improve processing capability and computing speed of model, the calculation and analysis procedure is developed. Based on topography and geological condition and engineering treatment situation of K103 landslide along the highway of Hangzhou-Jinhua-Lishui, the method of comprehensive evaluation with coupling weight value for steadystate of landslide after treatment is applied in implementing steadystate analysis and treatment effect evaluation of landslide. The research results show that the landslide through comprehensive treatment is in stable state(E_Ⅱ). The various engineering measures exert functional effects fully, and safety factor of the landslide is improved from 0.98 to 1.20. After comprehensive treatment, the landslide is stable and safe.

Key words: landslide treatment')">

landslide treatment, steady-state, engineering treatment effect, multi-factors and multi-levels, comprehensive evaluation, coupling weight value