Study On Fuzzy Recognition And Stability Of Lanslides

Railroad and highway is the national economy aorta. With the development of national economics, our country welcomed new tide of the traffic engineering. Under the construction, we met the slope slide and all kinds of nature disasters, which distribute abroad, occurs frequently and has a lot of causing factors, the multiplicity and the complexity of the movement mechanism. These added the difficult of engineering construction and safety incipient fault after the traffic. These disasters also bring some new difficulties for geologic workers. This article did the research on the background of YangShuAo slip group which is in the section of LuoTian to YinShan along WuYin Highway , and the initial survey denied the existence of the slip group. The paper further analyzed this slope slide.This thesis first in detail introduced the basic knowledge of slope slip, including the classification of slip according to slope sliding surface, mechanical properties, the slipe time, slip reason, the slip stable degree and so on, also including the different influencing factors to the slope stability under these dissimilar conditions, i.e. the crag soil type and the nature, the geological structure, the ground water and the surface water, the earthquake, the human activity and so on.Then the physical geography, the climate, the formation lithology, the hydrogeological conditions of YangShuAo slip are introduced, and the detailed investigation of geological condition has been carried out, moreover the particular data of crevasse investigation and the place has been listed. On the base of these information, this article applies the method of expert grading, above the foundation of ten experts grades, the application of level analytic method, the fuzzy analytic method combined with the black theory are used to judge whether this slip exists. Obtained this landslide really is an ancient landslide conclusion.Carring on the drilling, the physical prospecting, the sound wave test, geological investigation and so on, a detailed knowledge about the slope has been obtained, then the slip surface , the water line and the surface situation are obtained by reconnaissance , this article did the stability analysis by coefficient transmission method and find the slip is stable state in the natural condition, while added with themanual perturbation, the slope will lose stability using the coefficient transmission method, consequently, the route needs to be changed.