Study On The Influence Law Of Foundation Reaction And Internal Force Of Sluice Floor

Hydraulic engineering is used to control and allocate the natural surface water and groundwater,to achieve the purpose of eliminating harm and promoting the construction of the project.Water conservancy projects,to a certain extent,are related to the national economy and people’s livelihood.They are the foundation of national prosperity and development,social stability and people’s living and working in peace and contentment.In the water conservancy project,the sluice is a kind of widely used water retaining and passing buildings.Especially for the sluice project built on the soil foundation,the interaction between the structure of the sluice chamber and the foundation is complex and intense.The working behavior of the sluice chamber floor is closely related to the function and safety of the sluice engineering.Correct calculation of the bottom plate is very important.The sluice floor is affected by ground reaction and internal force,which are affected by other factors to varying degrees.So in order to further understand the safety of sluice floor,in the base plate is calculated by the ground reaction force and internal force of the process,in addition to the geometry size to find a few variable factors,are changing in various factors,will receive the sensitivity of the subgrade reaction force and internal force of the results of analysis and research,can be selected by the various factors on the internal forces of the brake bottom subgrade reaction force and the influence of important degree and rule.The foundation reaction force and internal force received by the floor of the gate chamber were taken as the characteristic indexes of the interaction between the gate structure and the foundation and the stress.According to the current design specification of the gate,the Markov chain Monte Carlo sampling method(MCMC),BP neural network and Tchaban sensitivity analysis method were combined.It is found that the main factors affecting the foundation reaction force and internal force of sluice chamber floor are the weight of reinforced concrete,upstream water level,downstream water level and wind speed,and the influence importance of each factor is closely related to the position of sluice floor.Finally,the statistical model of foundation reaction and internal force of sluice floor is constructed.After selecting significant factors and adopting the method of error influence analysis,the statistical model of foundation reaction and internal force of sluice floor is formed.The results of this study have important theoretical value for in-depth understanding and research on the reaction force and internal force of the foundation of the sluice chamber floor as well as the interaction mechanism between the structure of the sluice chamber and the foundation,and also have important reference value for the reasonable design,safe operation and scientific evaluation of the sluice engineering.