3-D Finite Element Analysis On Xiaohedong Channel Inverted Siphon In The South-to-North Water Diversion Project

The middle route project of South to North water transfer project is one of theworld’s greatest engineering, water conservancy project, the water from the relativelyrich Yangtze River Basin through the water channel to mobilize to water resourcesbecome increasingly barren of Beijing, Tianjin, Hebei area, Can effectively improve thewater resources in the northern area and environment. Through the canals and rivers ingeneral, often with siphon construction process, This river is the largest, inverted siphonculvert structure, the most widely distributed. The optimization stage constructioncontinues in the body and the water inlet pipe, the opening section optimization designIn the structure under different conditions of stress, the stress and deformation of the filltube, rarely, in order to better understand and Study on the construction of middle andlower reaches of the single from the south to the North South Rainbow Straw, aroundthe body of the rivers and straw siphon project road3D analysisAnalysis on the underground buildings inverted siphon the research scholars athome and abroad, Mainly by the method of numerical simulation, also demonstrate theaccuracy and the rationality of the numerical simulation research. Based on the Baofengto Jiaxian section of the middle route of South to North Water Diversion Project Xiaodong river inverted siphon project as the background, The maximum depth of the mostunfavorable position selection and pipe body figure two horizontal tube,A tube body ofthe3-D finite element model and the surrounding backfill, general software for largeusing ANSYS version, the simulation to study the nonlinear finite element simulation,the more reasonable results.Firstly, expounds mainly the nonlinear elastoplastic theory and concrete, reinforcedsoil, three kinds of material constitutive model and the yield criterion, finite elementanalysis of the treatment of steel and reinforced concrete materials. Then werecalculated in six conditions and maximum buried depth of pipe body in three kinds ofconditions in horizontal pipe body, state of stress and displacement of the soil aroundthe pipe body and the stress state of the tube body structure. Finally, analysis of thelocation of the crack is easy to appear the body tube under the most unfavorableconditions, and the tube body for filling the basement of15%cement soil and theunderlying argillaceous sandstone strength capacity can ask the relevant design requirements, to provide a certain reference value for the future engineering designwork...