The Study Of Mechanical Analysis To The Structure Of Bulb Tubular Pumping Station

At present, the engineering construction of domestic water conservancy and hydropower is in unprecedented flourishing developing period,The South-to-North Water Transfer Project in China is carrying on rapidly.The bulb tubular pumping station among them becomes a kind of pattern with big application value in the east route of South-to-North Water Transfer Project in China. Because of its simple charge and discharge passages,high efficiency of the installment, little lose of water head, little of foundation excavation,simple structure, saving the investment. There are main three methods in the mechincal analysis and the stability analysis to the workshop of pumping station at present time, which are mechanics of structures method, mechanics of materials method and finite element method. The main computational methods of inner-bottom plate of the pumping station are: inverted beam method, elastic foundation beam method. It is a common way that the special structures are predigested into plane problems, but the results are cursory. For the mammoth pumping stations, especially for the mammoth bulb tubular pumping stations whose geometric forms and load distributions are very complex due to the collection of the mechanical and electrical equipments and the influence of the flow passage, so it is necessary to carry out spatial analysis for the mammoth pumping station.This paper is written in the engineering background what is huaiyinsanzhan pumping station, which is the East Route of South-to-North Water Transfer Project in China. Three-dimensional finite element of the pumping station is set up, in which the special element model is adopted to simulate the structural characteristics.The static analysis is on Three-dimensional finite element of the pumping station,in which considering the gravity of the workshop, hydrostatic pressure, soil pressure and so on.It shows the maximal stress and displacement and the location of them in the four cases.The present code for design of sluice and pumping station recommends the methed of truncation strip, in order to appraise the difference caused by this kind of simplification computation.This paper analyses the calculated result of the 3-D model and the 2-D model which is the three perpendicular to the flow direction profiles from the...