Finite Elements Analysis On The Combination Of Sluice And Pumping Station Engineering

In recent years, with the rapid development of industrial and agricultural production, in order to improve the drainage and the water diversion guaranteed rate, the joint hub of sluice and pumping station is frequently used in the large-scale river training works, However, for a long time, since the sluice and pumping station’s complex operating conditions, especially after the foundation is processed by pile, its structural strength spatial is more obvious and the characteristics and mutual influence relationship is more complex. Aiming at the combination of sluice and pumping station’s complex relationship and combining the Zhangjiagang’s project of Yiganhe sluice station, single pumping station engineer and the composite foundation of pile foundation for the combination engineer of sluice and pumping station and the composite modulus of composite foundation for the combination engineer of sluice and pumping station was simulated by taking use of3-D finite element software ABAQUS. At the same time, pumping station structure’s stress field and the displacement field were analysed in the three cases. The work is carried out as follows:(1) Basic theory and methods of three-dimensional finite element method was indunced, Elastic mechanics basis and basic equations was expounded. In order to better solve the sluice and pumping station’interaction and the composite foundation of pile foundation’s complex conditions, it studies mechanical model of the contact surface and the soil constitutive model, and it also introduces the main module and analysis model and analysis processes of ABAQUS finite element analysis software,.(2) Combining the Zhangjiagang’s project of Yiganhe sluice station and taking use of ABAQUS,it establishes the pumping station monomer engineering and the the combination engineer of sluice and pumping station’s3-D finite element model,and studies their numerical calculations,it aslo compared their structure’s stress field and the displacement field.It can be seen that the sedimentation value and stress value are smaller, horizontal displacement values are larger, this case id not safe.So it should be given enough attention, in order to guarantee the reliability and security of the engineering design.(3) Adopting the composite modulus method and the actual pile composite foundation method calculate the settlement of the finite element, the calculated results of above two methods are analyzed in comparison. With the increase of vertical load, their error is bigger; As the lie under the soil’s deformation modulus and poisson’s ratio and pile-soil modulus ratio increases, maximum subsidence value of the two methods are reduced.(4) Composite modulus method is adopted to establish the composite foundation model and structure of the pumping station model, analyses the pumping station structure’s stress field and the displacement field, and compares with the research results of the actual pile composite foundation. It can be seen that composite modulus method for pumping station model’s dedimentation value and differential settlement are smaller, horizontal displacement values are similar, maximum principal compressive stress is smaller. Calculated when using composite modulus method is not safe. In the practical engineering, especially the large engineering calculation,it should be better that using the the actual pile composite foundation method studies the structure’ stress field and displacement field for accurate calculations.