Fengjie Daping Landslide In Chongqing City Stability Analyses And Government Plan Discussion

The landslide is one kind of natural geologic body disaster, once skids, may destroy under the slope the building and the path and so on, endangers the people personal safety and property. The influence landslide stable factor are many, like the litho logical character, the structure, the ground water, the rainfall, the earthquake and the artificial activity and so on, its research technique also gradually develops by the qualitative analysis to the quantitative analysis.Daping landslide located at the Chongqing Wuxi to the Fengjie highway K46+800~K47+400 section, Fengjie County Qiaowan village Mei Xihe the left bank (east bank), is apart from Yangtze River and Mei Xihe the junction to NATO 2km place, the surface layer soil body by fourth is the holocene landslide stack body (Q4del), the avalanche piles up the body (Q4col+dl) the clay, the clay fixture block crushed stone and the rubble stone soil constitution, thickness 10.50~25.60m. The large open area landslide is three landslide composition landslide groups,the plane shape assumes the tongue, the total area approximately 200,000 m2, the bulk volume approximately 2,878,000 m3, is an extra large type ancient landslide. Passes through the Wu Xi to the Feng Jie highway from the landside mass, after must therefore the landslide stability carry on the analysis, regarding this carries on the essential reinforcement, assures path's security.The Daping landside mass is one of Three Gorges of the Yangtze River project storehouse district near dam storehouse section large-scale landside masses, is situated at the subtropics warm wet monsoon climatic region, the climate temperate moist, the rainfall is abundant, therefore the Three Gorges reservoir livestock water and the rain water landslide's stability has the very tremendous influence regarding this. This article after has been analyzing this landslide geological environment background carefully, to affected the large open area landslide stable factor to conduct the detailed research. Considered the Three Gorges reservoir livestock water level the change and the precipitation landslide's major effect factor, (was not for this reason balanced through the limiting equilibrium principle transmits method of correlates) to make the minute operating mode analysis to its stability, finally indicated that the storehouse district water level the change and the rainfall had the possibility to affect this ancient landslide very much, caused it to produce collapses slippery or reactivating. The recombination numerical simulation method (FLAC3D), analyzes the landslide under the different operating mode the distortion situation, the displacement situation, the stress distribution characteristic and the landslide latent sliding face search.Above rests on after the Daping landslide stability analyses, proposed that two kind of plans carry on the comprehensive program of public order to the large open area landslide, then from valid, the economical and the construction craft aspect ratio chooses one kind of plan to carry on the government to the large open area landslide.