Finite Elements Analysis On Weak Foundation Of Oil Storage Tank Yang Xiujuan College of Civil Engineering, China University of Petroleum, Dongying 257061, China Jia Shanpo College of Civil Engineering, China University of Petroleum, Dongying 257061, China Yan Xiangzhen College of Civil Engineering, China University of Petroleum, Dongying 257061, China Abstract In this paper, the distribution of extra stress and distortion of homogeneous soil is studied by using ANSYS paring the result with the result by formula of criterion. Then, according to the geological references of Cangzhou refinery in Hebei province, several methods on how to deal with foundation and pound modulus of elasticity and Poisson’s ratio that are required in order to control the settlement in some magnitude are concluded by using finite element analysis to simulate the extra stress distribution of the single oil storage tank whose volume is 15×105 m3 on the basis of preceding conclusions. The result illustrates that finite element analysis is dependable for analyzing extra stress and distortion of the foundation of an oil storage tank. This method can provide reference for the analysis of elasticity and plasticity of foundations and dependability for engineering design. Introduction Because of the new policy reformation and opening, China Petroleum & Chemical Corporation wants to set up several oil storage tanks, considering the need for energy storage in Shanghai and Zhejiang province, and that the volume of a single oil storage tank is up to 15×105 m3. The construction of oversized oil storage tanks not only puts forward stricter requirement for the design of equipment and techniques, but also increases the difficulty for the reconnaissance of geotechnical engineering and the construction of oil storage tanks. At present, many experts in soil mechanics have made many attempts to design a foundation for this kind of oversized oil st
