Program Design And Application Of Slope Structure Reliability Based On Matlab Software

The problem of slope destruction is increasing with the vigorous development of infrastructure construction in various engineering fields namely highways,railways,and civil engineering in China.The threat of slope destruction is the vital matter especially in the areas with sophisticated geological conditions in many geological disasters.Considering the essential study on the reliability of the slope,this paper has launched the research of the program design and application of the reliability of slope structure.The traditional slope stability analysis method takes advantage of the deterministic analysis method to obtain the slope safety ratio so as to study the reliability of the slope structure as the core matter.However,the randomness of parameters is not considered when calculating the safety factor of the impact of reliability.Therefore,based on summarizing the slope stability analysis method,The basic principle of Monte Carlo method was utilized to calculate the reliability and Matlab software was utilized to compile the application program for the reliability calculation of sand and clay soil slopes and the function of the slope analysis calculation is taken: Z=F?-F?,considering the influence of the nonlinearity of the limit state equation and the randomness of the slope parameter on the slope reliability,compared with the function of Z=K-1 it avoids to calculate safety factor.The Matlab program for the calculation of slope reliability is developed in this paper.The program consists of four modules namely slope model data input,reliability index calculation,sensitivity analysis and data preservation.Through the connection of the four modules to form a perfect program of the slope reliability checking and sensitivity analysis of reliability to parameters so as to realize analysis of arbitrary soil slopes.The correctness and feasibility of the program are verified through “LiZheng” software and specific engineering examples and the sensitivity of internal friction angle ?,cohesion force c,bulk density ? of soil mass to slope reliability are analyzed by utilizing self-compiled programs.The program compiled in this paper can be directly used to analyze the reliability of slope with convenient operation which reduces the difficulty of the analysis and calculation on slope reliability to a certain extent and has certain engineering application value.