Study On The Landslide Stability In The Town Of Zhongyuan

Based on the central town town landslide as an example,this paper puts forward three kinds of method of complex 3 d geological model which is established.In FLAC3 D seepage module function is developed on the basis of unsaturated seepage flow,implements the central plains town town landslide three-dimensional numerical simulation of the process of rainfall infiltration.Through setting different under the condition of rainfall to study the central plains town town under the annual average rainfall intensity stability of the landslide,and unsaturated seepage MIDAS software module,comparing the calculation results verify the validity of the function of unsaturated seepage flow is developed.Finally get the following results:(1)the paper puts forward three methods respectively to build complex three-dimensional real terrain model,solved the prophase,the difficulty of modeling in the FLAC3 D,at the same time in FLAC3 D three-dimensional slope rainfall infiltration in the unsaturated seepage analysis is feasible.(2)for the first time based on unsaturated seepage function,FLAC3 D platform developed in the central town town as an example for the landslide under the annual average rainfall intensity with rainfall infiltration in different analysis,at the same time using MIDAS software module of unsaturated seepage flow calculation results are validated and verified based on FLAC3 D platform developed on the correctness of the unsaturated seepage function.(3)based on the limit equilibrium theory and using the FLAC3 D numerical simulation to the central plains town town landslide in self-respect and rainfall for the analysis of two kinds of working conditions,emphatically analyzed the influence of the rainfall infiltration process of central plains town town landslide.The annual average rainfall intensity when the rainfall infiltration process under the influence of zhongyuan town town landslide.