Numerical Study On Safety And Reinforcement Scheme Of Tidal Sluice In Wuguan River

Water conservancy to rejuvenate the country,China’s hydraulic structures were built in the period of vigorous development.Sluice project is an effective engineering measure to solve drought and water shortage,flood and waterlogging disaster and water environment deterioration As a basic part of flood control engineering system and optimal allocation of water resources,it has a special status,and its comprehensive benefits such as irrigation,flood control,waterlogging drainage,water supply,aquaculture,ecological protection and environmental improvement are more importantConcrete is the most important pouring material for sluices,but in view of the fact that most sluices have been built for a long time,and the service life of buildings and supporting facilities is too long,at the same time,due to historical reasons,many sluices have low standards,serious aging,low project management level,poor construction quality,etc.,and concrete will be damaged to different degrees.Based on the five irrigation river tidal sluice project in jiangsu province,according to the content of the safety appraisal of sluices,analyze the security state of sluices,aiming at the existing disease problem of sluice chamber structure,to appropriate reinforcement measures,by means of three dimensional finite element software ANSYS to analyze the different reinforcement sluice chamber structure stress field,and verify the validity of the reinforcement scheme,the main research content is as follows:1.Analyze the safety service status of the tidal damper based on the investigation of the project status and on-site safety testing data;The stability state of the sluice is analyzed from the seepage stability and the overall stability of the sluice chamber2.Create the finite element model of sluice chamber with THE help of ANSYS three-dimensional finite element software,calculate and analyze the stress field of the structure,analyze the bearing capacity of the structure,and provide the basis for the safety state evaluation of the sluice.3.The safety comprehensive evaluation of Wuguanhe sluice is carried out in the way of constructing the evaluation index system and determining the index weight.First,quantify the evaluation index.And then the evaluation indexes were weighted by improved analytic hierarchy process and entropy method.Next,the evaluation index weights were obtained by fusion calculation based on the principle of minimum information entropy.Finally,the fuzzy comprehensive evaluation model was used to evaluate Wuguan River comprehensively.4.According to the disease problems existing in the gate chamber structure,the reinforcement scheme was formulated,and the stress field distribution of the reinforcement scheme of the gate chamber structure was studied with the help of ANSYS THREE-DIMENSIONAL finite element software;Based on this,the effect of grouting treatment with sluice pier is simulated to provide a basis for reinforcement.