| Landslide is an ordinary geological disaster in China. The stratagem of "WesternChina Development" offers a new opportunity to Guizhou province's highway construction. It is very important for highway construction and running to put up landslide stability analysis, fathering research and keep the slope stability for a long time. According to engineering practice during the construction of Chongzun highway, the characteristic of ordinary deposit layer and terrane landslide in project construction is very detaily analyzed in the paper. The borehole inclinometer is used to monitor the deep displacement on the basis of detailed reconnaissance of Longjing landslide and specify the main and submain sloping surface position in different sites of landslide, displacement velocity and compositive displacement direction, all that provides reliable geological information for landslide renovation design and construction. The main factor of influencing landslide stability and the method of deciding the stability are all analyzed in the paper, as well the structure of supporting anchor (perpetual anchor), the material of grouting is optimized during the fathering of landslide to the aim of design optimization. The characteristic of deposit layer and terrane landslide is described from theory to practice. As far as Longjing landslide in Chongzun highway thirteenth segment layer by layer road entrenchment landslide, from the engineering geologic condition to construction factor, the main factor and the stability of landslide are analyzed in detail. At last ,the elastic and plastic finite element modeling of multi fathering effect of Longjing landslide case is given forward following the constraction practice, and the result is shown that the landslide fathering design is feasible and has use foe reference value to the similar slope fathering.
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