Analysis Of The Influence Of Groundwater Environment Changes On The Stability Of Rock Slopes

With the acceleration of urban development,construction and engineering field has been developing rapidly.A lot of artificial slopes formed in construction and engineering will result in collapse or landslides if not handled properly.However,to reasonably evaluate slope stability is an important precondition of slope instability prevention engineering.Most conventional studies on slope stability are analyzed by final results of groundwater environmental changes or periodic results,ignoring the slope stability and the dynamic changes of water environment in a water environment changing process which influence the degree of slope stability under different conditions of difference.In addition,the specifications of slope analysis methods recommend limit equilibrium method,but in fact finite element strength reduction not only has all the advantages of the traditional limit equilibrium method,but also has the advantages of dynamic simulation and process presentation of the slope,but this method is extremely demanding the accuracy of parameters,and so has not been widely used.Based on the above criteria:This article divides the groundwater environment factor into two cases:no groundwater level or not,simulates the slope in different rainfall conditions by using Finite Element Strength Reduction Method,and analyzes the slope stability in the water environment changing process.At the same time,it gets the difference of influence degrees of underground water environment change on the slope stability in different conditions,and obtains a more accurate quantitative analysis method to evaluate water environment change on slope stability influence,to provide a more effective train of thought in design for the actual slope support engineering.In this article:Firstly,the slope analysis in the presence of underground water level summarizes the mechanism of the groundwater environment for the rock slope stability in both cases,on this basis,using the finite element strength subtraction,and the parameters of in-situ direct shear experiments and indoor test,the slope seepage model is established and simulates rainfall in a process of different rainfall conditions.Secondly,it analyzes the impact of the water environmental changes on the state of the rock slope stability in two cases.The results show that the rainfall process under different rainfall conditions,there is no ground water in slope,with the increase of rainfall intensity,the reinforcement effect of seepage to groundwater environmental change on slope stability influence is limited;When slope with underground water level,declining rate of slope stability safety coefficient increases gradually,at this time with the increase of rainfall intensity influence on slope stability is significant.