Reliability Analysis And Engineering Application On Landslide Stability Of Reservoir Shore

The stability evaluation of landslides, with a very important significance in theoretical researches and a highly practical valuers one of the essential problem as well as one of the most impending projects in the researches of landslides. The variabilities of various random variables which affected the stability of landslides are considered in reliability theory which based on probability theory,and the rigorous probability is used to gain the degree of security in the stability analysis of landslides. As a result ,the reliability theory is more practical in the stability analysis and assessment of landslides.The research of this project is based on the fundamental principle of rock mechanics , soil mechanics and reliability theory.collecting and analyzing the parameter of local site test and laboratory test are basic conditkms.Firstly,this article reviews the recent research state of landslides and reliability theory,discusses the fundamental methods about reliability analysis.lt also describes the research process,calculating methods selected,crucial technical problems solved,primary research productions acquired,prospect of development.and eventually draws some disciplinary conclusions.These conclusions have been verified by analyzing the stability of Yangjiachao landslide in the area of Geheyan reservoir of Qing River.lt means that the adoptive methods can be satisfied with the requirement of pratical engineering and has broad practical value.With the reliability analysis of landslides ,we can get the following conclusions: Landslides engineering is a very complex systemic engineering,which must be studied by the methods of reliabilityanalysis;Monte-carlo simulating method is a unique numerical calculating method,which is comparatively suitable for reliability analysis of landslides;The accuracy of the calculating results of reliability analysis is largely based on the rational selection on the calculating parameters; The application of reliability analysis in rock and soil engineering is a gradual transitional process which makes it incessantly perfect.Reliability analysis is more clear and more rational than determined value method, So it has been broadly applied in structural engineering.