Stability Analysis Method And Program Development Of Minimum Potential Energy For Geogrid Reinforced Slope

In order to reduce the probability of slope instability and improve the safety and integrity of slope,a large number of slopes exist in infrastructure construction,once they become unstable,they will cause huge economic losses and casualties.It is usually necessary to reinforce the slope.Among the reinforcement methods,geogrid reinforcement can not only effectively solve the problem of slope instability,but also save materials,and construction is fast and convenient,so it is widely used in practical engineering at present.However,the stability analysis method of geogrid reinforcement,which is simple and convenient for engineering application,still needs to be developed and perfected.Therefore,based on the principle of minimum potential energy,the second dimension and the second dimension of geogrid reinforced slope are established in this paper.Three-dimensional stability analysis method,and using MATLAB software to develop the corresponding program,the specific contents and results are as follows:(1)For the geogrid reinforced homogeneous slope,the potential energy of elastic tensile storage of geogrid and the potential energy of friction storage between geogrid and soil interface are considered in the construction of two-dimensional model.A two-dimensional minimum potential energy stability analysis method for geogrid reinforced slope is established.The rationality of the method is verified by comparison and analysis of an example.(2)On the basis of two-dimensional analysis method,considering the elastic dynamic energy of geogrid and its potential energy between soil and soil,the system potential energy model is established for three-dimensional geogrid reinforced homogeneous slope.The minimum potential energy stability analysis method of three-dimensional geogrid reinforced slope is presented.The results show that the results obtained by this method are in good agreement with those calculated by other methods,and the influence of the length of geogrid and the distance between layers on the safety factor is obtained.(3)Based on the two-dimensional and three-dimensional analysis method established above,the stability analysis program of geogrid reinforced soil slope is developed by using MATLAB,which is convenient for analysis and calculation and engineering application.