The Reaserch Of High Loess Slope Landslide Mechanism And Remediation Technology

Northwest University for Nationalities campus in northwest village south slope control project as the background, based on detailed field investigation and consulting related data, the landslide classification, causes and mechanism are studied, and the conditions and treatment of landslide is studied, analysis of the characteristics, conditions and predisposing factors of loess landslide area.Through the indoor experiment on the experimental study of the loess soil parameters, using the finite element analysis software MIDAS/GTS for not supporting the Northwest University for Nationalities campus of northwest village south slope of III- I and the slope anchor cable frame beam of Northwest University for Nationalities campus of northwest village south slope of slope of the numerical simulation is carried out, and the landslide characteristics prevention and treatment of loess slope is analyzed.Using finite element analysis software MIDAS/GTS to optimize the use of pile anchor supporting Northwest University for Nationalities northwest village campus south slope of III- I slope were simulated, analyzed the effect of optimization.The main conclusions of this paper are:(1) By relying on the analysis of engineering of deep loess slope monitoring results, the deformation law of loess slope is: landslide front(2.02mm/), anterior(1.87mm/ months), middle(1.17mm/ months), posterior(0.89mm/ months), posterior(0.64mm/ months).(2) Using the method of Swedish article points on landslide stability is analyzed and further calculation-ⅰ and ⅲ slope landslide-thrust and further anchor frame beam structure is designed to support-ⅰ and ⅲ slope reinforcement. Slope deformation monitoring results show that the frame girder of cable-ⅰ and ⅲ support can effectively prevent the slope side slope landslide.(3) Soil parameters obtained by test of loess, the support of Northwest University for Nationalities campus of northwest village south slope of slope and the use of anchor frame beam of Northwest University for Nationalities campus of northwest village south slope of slope supporting of the numerical simulation with the finite element analysis software MIDAS/GTS. The results show that:the use of anchor cable frame beam, t he stability coefficient of the slope increased from 0.932 to 1.418; the maximum horizontal displacement of slope is reduced from 19.3cm to 1.6cm; the vertical displacement of the slope decreases from 17.2cm to 2.2cm, supporting effect.(4) Northwest University for Nationalities campus of northwest slope slope of Nanshan village of supporting measures are optimized, the pile anchor supporting III- I slope were simulated by the finite element software MIDAS/GTS, results show that: the safety factor of the slope increased, the level and vertical displacement decreased, relative to the anchor frame beam retaining structure of pile anchor retaining structure, can effectively prevent the slope of landslide zone 1.