喜儿沟水电站调压井沉井施工过程中应力变形分析-岩土工程专业论文.docx

西安理工大学硕士学位论文sinld 飞process.③Frictioncoefficientsensitivityofsandgavell盯eroreaissonsurroundi吃wa s an alyz ed，an d the variation ofeaisson disPlacem ent an d stress w ere co m Pared w ithdiffe reni衍ction coefficients.hithisPaP 甄finite elem entsoftw are AN ASYS w asusedasthe m ethod ofnu m ericalsimulatio几thePro Posed m ethod ofcalcu lation，ideas，an d thecalcu lationresu ltscanbeused astherefereneeforothersimilarProjects.K eyword s:eaisson; sand grav ellay er; stress; defo rm ation; finiteelem eniThisworkwassuP Ported byTheNationalNaturalScienceFou ndationofChina(GrantNo〔计田胜N TheNationalNaturalSeienceFoundationofChina(GrantNoM echanicsan d Eng ineering ，Shaa n劝ProvinceK eyLab oratory ofLoesskeyscientifieresearchProjects(ogJS103)M inistry of W ater R esources research and Publie serv iee indu stry，a sPecial(2007SHZI一200701004)funding.目录目录1.绪论......................................……，..................……11.1沉井施工技术概述...............................................……11.1.沉井的特点及用途1.1.2 沉井的分类和构造白Q1.2国内外沉井施工技术研究现状.....................................……61.3研究背景和意义.................................................……81.4本论文主要研究讨论的问题.......................................……92.沉井三维有限元计算本构模型与计算软件..............................……102.1非线性弹性模型...............…… ，..........................……102.2弹塑性模型........................……，......……，..……，..…132.2.1屈服准则..................................................……132.2.2加卸载准则................................................……142.2.3流动法则..................................................……152.2.4硬化定律.....................................·.···.·······……巧2.2.5弹塑性本构方程的一般表达式................................……162.2.6弹塑性本构关系的矩阵化二，，...........……，.............……172.3静力计算本构模型的选取............……，……，..............……202.4有限元计算软件简介..............................……，.......……213喜儿沟水电站调压井沉井工程概况与计算条件..…，，...................……233.1工程概况...........……，...................·····4··············，二233.2工程地