| Since the founding of New China,the construction of water conservancy engineering facilities in my country has developed rapidly.As an important part of water conservancy engineering facilities,pumping station engineering plays an important role in water resources dispatch and management,and has been applied to various water diversion projects..As an important water conservancy project facility in the main urban area of Yangzhou,Guazhou Pumping Station can effectively regulate and reduceThe water level of the ancient canal and the main stream of the Yiyang River in Yangzhou City ensures the smooth flow out of the plain area and reduces the flood control pressure of the dyke.In view of the importance of the Guazhou Pumping Station project,the design adopts the bored pile foundation and the foundation of the pump site area is complex.To ensure the safety of the pumping station structure,it is necessary to carry out structural calculations for the Guazhou Pumping Station.Since traditional design methods cannot effectively consider the interaction and three-dimensional space effects between the pump station floor,side piers,middle piers,pile foundations and foundations,in view of the advantages of the three-dimensional space finite element method in this analysis,this paper uses limited three-dimensional space Numerical simulation and calculation of Guazhou pumping station are carried out by element method,and the structure design of the pumping station is fed back.The main research contents are as follows:(1)Study the theory of structural finite element calculation,focusing on the analysis of the elastoplastic constitutive model of the soil layer and the contact between the pile and soil,and provide a theoretical basis for the three-dimensional finite element calculation of the Guazhou Pumping Station;(2)Analyze the structure and foundation conditions of the Guazhou pumping station,consider the geometric characteristics of the complex structure and the distribution of soil layers,and establish a three-dimensional finite element elastoplastic model of the Guazhou pumping station;(3)Analyze the self-weight,water pressure,uplift pressure and earth pressure of the Guazhou Pumping Station under various working conditions,simulate and analyze the structural deformation and stress distribution of the Guazhou Pumping Station under various working conditions,and demonstrate and analyze the Guazhou Pumping Station.The rationality of the structural design scheme of the prefecture pumping station;(4)In order to effectively consider the impact of the cast-in-place pile foundation on the structural characteristics of the Guazhou pumping station,the effects of cast-in-place piles of different depths and different spacings on the mechanical properties of the structure are considered separately,and a three-dimensional finite element model is established,and the structure of the pumping station is analyzed Deformation and stress distribution,evaluate the mechanical characteristics of pumping station structure under the influence of different pile depths and pile foundation spacing... |