Study On Fuzzy Comprehensive Evaluation Of Slope Ground Treatment Scheme In Complicated Environment Of Mountainous Area

Since the reform and opening up,China's economic development has grown rapidly,and construction of projects have been carried out in various places.As the development focus moved from the eastern coastal areas to the inland mountainous areas,it is an inevitable phenomenon to build buildings in mountainous area.Engineering accidents occur easily because of the height difference,complex conditions of rock and structural surface,groundwater development and Karst landforms.So we regard the treatment of mountainous as a focal issue.One of the most critical issues is the optimization of slope ground remediation scheme.Not only to meet the requirements of engineering construction,economic costs are also worth considering.At present,the lack of standard process is a major problem,leading to lack of objectivity,scientificity and systematicness.Therefore,it is of great practical significance to carry out fuzzy comprehensive evaluation of slope ground treatment scheme in mountainous area.A fuzzy comprehensive evaluation model was built based on the fuzzy analytic hierarchy process(FAHP)to study on program optimization of slope ground treatment scheme in complicated environment of mountainous area.The Nanshan Mental Health Center of Chongqing was selected as the engineering example,and the fuzzy comprehensive evaluation of the ground treatment scheme was carried out by using the evaluation model.The main contents of this paper are as follows:(1)Introduce the Nanshan Mental Health Center project details.Analyze two treatment schemes.Calculate the slope stability coefficient by using limit equilibrium method.Calculate the stress,strain and displacement of slope excavation numerical simulation.(2)Analyze and evaluate the influencing factors,establish a comprehensive evaluation index system.(3)The fuzzy comprehensive evaluation model of mountain sloping ground is established by using fuzzy comprehensive analysis method.The steps of comprehensive evaluation of mountain slope ground treatment are expounded in detail.At the beginning,build a comprehensive evaluation index system of mountain slope ground and then construct the fuzzy consensus judgment matrix to calculate the weight vector of each evaluation index.Determine the membership degree of each index.Finally,the evaluation is carried out according to the weight.(4)Use the established fuzzy hierarchical comprehensive analysis model to evaluate the remediation scheme of slope ground of Nanshan Mental Health Center.Steps are as follows:Firstly,extract and stratify the evaluation index of the ground treatment scheme of Nanshan Mental Health Center.Secondly,calculate the weight vector.Then determine the membership degree.Finally,evaluate the two schemes,determine the optimal solution.