Slope Engineering Risk Assessment Based On Reliability Theory

In recent years, study on the risk assessment of landslide hazard plays an important role in the field of hazard research worldwide. Risk analysis of landslide hazard involves not only natural science but also social science, which is a comprehensive assessment among multi-disciplinary branches, so the relative theories should be combined together to form an integrated consummate slope hazard risk analysis theoretic system. This article carries out risk evaluation, treatment decision-making and design means of landslide hazard based reliability theory and risk evaluation theory through comprehensive studied on the factors affect landslide hazard.The main research findings are as follows:First this paper analyzes the factors that influence slope stability, give out classification index of slope damage appraise, discuss the process of slope stability analysis by Analytic hierarchy process detail. As a fuzzy property of evaluation indexes is involved in the decision-making of treatment schemes of slopes, the fuzzy hierarchy analysis of decision-making of landslide hazard treatment is presented in this article. According to the two-two index comparison, the fuzzy numbers instead of definite numbers to form fuzzy complementary judgment matrix, thus error of judgment matrix caused by traditional hierarchy analysis is reduced. As slope hazards own the character of simultaneous occurrence, this paper suggests that we can evaluate slope harmfulness through damage probability, importance of slope and volume of slide baby.Based on landslide damage effect, consider the general character and personality of hazarded baby, follow similar criterion of performance, damage mode, value attribute and calculation methods, this paper give out corresponding vulnerability calculation methods based on different hazarded baby styles.In risk hazard analysis study period, the prevention and cure of geological hazard usually through natural science, social vulnerability don't direct embodiment its effect in geological hazard prevention and cure, so the study about effect of social vulnerability is insufficiency. But risk evaluation and treatment decision-making of landslide hazard is a cross-discipline that not only concerns with the natural science but also concerns social science, this article is convinced of important effect of social vulnerability, analyze the connotation of social vulnerability and bring forward correlative strengthen methods. Tolerable risk or acceptable risk not only correlate with type of slope but also correlate...