An Indian Landslide Stability Assessment And Treatment Optimization Study

The Beishan area of Xining is under the jurisdiction of North and east area, itdeveloped within66points of geological disasters, including38dangerous rocks、10landslides and18mudslides grooves, all of them are the group of large geologicaldisaster. For quite some time, especially at the time of the flood season of every year,the collapses, landslides and debris flows have been a serious threat to the lives andproperty of local residents; it also restricted the development of industry andagriculture production and the city’s construction, so it is the focus of regionalgeological disaster prevention of Xining city. In recent years, the climate of the worldis changing and the extreme weather in Xining is increasing, it leads to theresurrection of the geological hazard risk increased substantially while a printlandslide disaster is one of the most serious hidden danger and the most dangerousdisasters of in the largest geological disasters.At17:30on July31of2011, as affected by continuous rainfall and other factors,a printed slip landslide occurred suddenly. Sliding part is about length300m andwidth300m, the overall landslide slip leading edge forward about50m, height ofdislocation about30m,resulting the front edge of a print landslide causing residents ofthe community residents and315houses were threatened by the landslide, landslidenapes approaching houses, fences and alleys of a resident community, which numbers1039two buildings and the adjacent two building has been partially buried, houseshave been damaged, but fortunately caused no casualties; the soil of landslide pouredinto the roadway more than10m; the printed landslide blocked the west ditch channelabout90m,part of the existing revetment wall debris flow gullies were destroyed, andit also buried parts of exhaust canal; The controlled-project is being built and greenengineering were damaged exhausted by the landslide. This thesis look the a printlandslide as the study object, give an overview of the geological setting of thelandslide’background and quantitative evaluation of the stability of the landslide onthe basis of a print landslide qualitative analysis of the causes, and optimize its designand governance programs, its research results are summarized below:(1)Determine the factors what affect the stability of the landslide by the analysisof the geological background and causes of the landslide area. On this basis, makequalitative and quantitative evaluation of the stability of the landslide. (2)Analyses the stability of the landslide with transfer coefficient method and find:a kind of landslide is in less stable state in natural conditions. The stability factor is1.047in natural state, it is in less stable state; In natural state and storm conditions,the stability factor is0.932, it is in an unstable state; In natural state and earth quakeconditions,The stability factor is0.956, landslides is in an unstable state, it ispossible to decline again with the adverse factor.(3)To the landslide of a Printing, give a treatment plan optimization, arrival at aconclusion that the optimum plan is: Cut unloading and counter pressure filling andslope retaining wall and surface drainage. after checking the landslide stability withthe design standard.(4)Through the effective design, careful construction cracks are gathering, slopelandslide sliding deformation after messy of external morphology change greatly, theimplementation of the irrigation grass slope greening projects, really reflect thedisaster management and the idea of combining ecological environment.