Optimization Scheme For Leakage Treatment Of Yang Lu Shan Tunnel On G50s Shanghai Chongqing Southern Expressway

Highway tunnel is an important part of traffic network.Long-term leakage of water in tunnel easily causes lining to peel off and weathering.If there is corrosive medium in the leakage water,it will accelerate the cracking and deformation of tunnel lining and rust of internal mechanical and electrical facilities.It has a very serious impact on tunnel operation,so the anti-seepage performance of the tunnel is an important index to ensure the use function of the tunnel.Taking Yanglushan Tunnel of G50 s Shanghai-Chongqing Southern Expressway(Chongqing Riverside Expressway)as an example,the author takes materials as variables in common schemes of tunnel seepage treatment and stainless steel water interception box schemes,and uses second-order clustering algorithm to analyze and process data for each variable with thickness assignment,and obtains the relative importance of each material.At the same time,this paper carries out finite element simulation under certain water pressure for the common scheme of tunnel seepage treatment and the scheme of stainless steel water interception box,and analyses the strain of the two schemes under the same stress.Finally,through comprehensive value analysis and calculation,it proves that the second-order clustering finite element method is the best one.The correctness of the selected treatment scheme for tunnel leakage.The main research work of this paper is as follows:1.Introduces the general situation and environment of Yanglushan Tunnel Project of G50 s Shanghai-Chongqing Southern Expressway under the jurisdiction of Banan District,Chongqing City,and expounds the causes of tunnel leakage.At the same time,from the field investigation and analysis of Yanglushan Tunnel leakage water,to the whole process of seepage treatment plan design,construction implementation and effect evaluation,it deeply analyses the Yanglushan Tunnel often.Leakage treatment scheme;2.The concept of tunnel waterproofing and drainage system and leakage water is elaborated.By analyzing the advantages and disadvantages of commonly used optimization methods in engineering,it is concluded that the second-order clustering finite element method is more suitable for optimizing the treatment scheme of tunnel leakage under the condition of large water pressure caused by crystal blockage.3.Using ANASYS to simulate the common seepage treatment schemes of Yanglushan Tunnel on G50 s Shanghai-Chongqing Southern Expressway by finiteelement method,and calculate the strain of each part of the seepage prevention body under certain water pressure.Then using SPSS second-order clustering algorithm,the seepage treatment schemes of Yanglushan Tunnel on G50 s Shanghai-Chongqing Southern Expressway are simulated.The relative importance of the material used in the treatment scheme and the stainless steel water interception box leakage treatment scheme is calculated and distinguished;then the stainless steel water interception box leakage treatment scheme composed of the material with the highest importance is calculated and simulated by ANASYS again,and the anti-seepage body parts are calculated under the same water pressure.In summary,it is concluded that the maximum strain produced by common leakage treatment schemes of tunnels is larger than that produced by stainless steel water interception box,which is relatively easier to cause secondary leakage.Therefore,the stainless steel water interception box scheme is chosen as the optimal scheme.4.From three aspects of time cost,construction cost and maintenance cost,this paper analyses the common seepage treatment schemes and stainless steel water interception box schemes of Yanglushan Tunnel on G50 s Shanghai-Chongqing Southern Expressway,and compares the comprehensive value of the common seepage treatment schemes and stainless steel water interception box seepage treatment schemes through formula calculation.Those with high value are the best choice.Through the analysis of the comprehensive value of the two schemes,the validity of the second-order clustering finite element method for the optimization of seepage treatment scheme of Yanglushan tunnel on the G50 s Shanghai-Chongqing South Highway is demonstrated again.In summary,the second-order clustering finite element method is used to optimize the treatment scheme of stainless steel water interception box for tunnel leakage treatment,and the economic value and optimization of the scheme are demonstrated by comprehensive value analysis.