Study On Deformation And Failure Mechanism Of Landslide Of The Soil-rock Mixture In The Qin-ba Mountain Region

There is complex environment and frequent occurrence of geological hazard in theQin-ba Mountain Region,especially development of landslide of the soil-stone mixture.Themaily content of this article is on the deformation and failure mechanism of this type oflandslide.Fist,I study on the analysis of geological environment of the disaster by fieldinvestigation. and summed up the development rules of this type of landslide in the Qin-baMountain Region,At the same time,I done a large number of tests on soil-stone mixture,andanalyzed the special physical-mechanical properties of the materials Last，take landslide ofsoil-stone mixture in Gaotan Town Ziyang County Center primary for example, and a detailedanalysis of the landslide, reveals its mechanism of deformation and failure. This study yieldedthe following results:(1) Through a combination of field geological environment survey data analysis, accessto the geological background of the disaster in the Qin-ba Mountain Region, and based onsurvey data of Ziyang County disaster, summed up the distribution of landslide of soil-rockmixture,composition and structural characteristics, factors of bred disaster,deformation andfailure mode, activity phases,and finally, the landslide of soil-rock mixture was classified.(2) Taking into account the particularities of the geological material in soil-rock mixture,study on the test method and physical mechanical properties of landslide of soil-stone mixtureof calss materials,eventually get the deformation and failure characteristics of landslide ofsoil-rock mixture.(3) Take the landslide in Ziyang County high beach town center elementary school forexample, use limit equilibrium method and finite element method for calculating slopestability coefficient, obtained the sensitivity of soil-rock mixture material parameters effect onlandslide stability coefficients by calculation.