| With the improvement of economy and the increasing demand for the storage of energy sources, the pace of construction storage system is accelerated. Oilcan is the kind of lager container widely used by oilfield and oil chemical plant and other corporations, which can provide energy for using and re-producing. In order to prolong the life-span of oilcan and assure the providing of oil, the study on the foundation and its security is essential for the accelerating the storage of energy sources.For the foundation of good-sized oilcan, the distributing discipline of extra stress and distortion of homogeneous soil and inhomogeneous soil are studied in the paper by using the method of finite difference method and compared with the results by formula of criterion. The result illuminates that the way of finite element is dependable for analyzing extra stress and distortion of groundwork of oilcan. According to the geological references of Dagang Oil field, several disciplines on how to deal with groundwork concluded by using the method of finite difference method, especially for maximum settlement, the difference of settlement, plane slope, unplanned slope and so on. Several disciplines on extra stress and settlement of groundwork and the conclusion that the mutual influence of oilcans is one of the main reasons that cause unplanned slope are concluded. |
