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The Application and Study of ANSYS on Seepage Field, Stress Field and Coupling Analysis for Earth Dam

Author: ZhangZuoZuo
Tutor: DaiMiaoLin
School: Hohai University
Course: Hydraulic Structure Engineering
Keywords: Embankment dams Parameter inversion Duncan - Zhang model ANSYS Seepage Field Stress field Coupling analysis
CLC: TV223.4
Type: Master's thesis
Year: 2006
Downloads: 1032
Quote: 11
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Abstract


Currently , the country has built more than ten ten thousand kinds of reservoirs , most of which is earth-rock dam . However, because of the ill- survey and design , construction bad , improper management operation and other reasons , a lot of embankment sections and reservoirs also there are different degrees of hazards , not only affects the engineering efficiency and give full play , and even cause the dam burst accident brought huge losses to the country and the people 's lives and property . The dam , embankment dam is Hualiangting with ANSYS finite element software function systematically numerical analysis of seepage field and stress field and its coupling field . First of all , the goal of using ANSYS finite element software to optimize the function , performance anti- dam main partition real permeability coefficient . Then , according to this permeability coefficient by numerical simulation. APDL language of ANSYS finite element software and ANSYS software to analyze the seepage field , and seek to calculate the cross-section of the seepage head , seepage , seepage gradient , and the results were compared with analysis . In addition , the stress analysis of earth dam , ANSYS software secondary development , preparation of Duncan Zhang command stream for stress analysis , to solve the software itself unable to adopt Duncan model for structural analysis problems . Meanwhile, considering the influence of the intermediate principal stress was amended to the model , the calculation results made ??the appropriate comparison . Finally, by mutual iteration of the seepage field and stress field , the stress and displacement before and after contrast iterative changes coupled analysis of seepage field and stress field . This article focused on solving the earth dam study three major issues : the inversion problem , analyze the problem of seepage field and seepage field and stress field coupling problem . The preparation of the corresponding APDL command flow the other embankment dam numerical analysis has some versatility . Also provides a new method for other research and analysis of the dam .

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CLC: > Industrial Technology > Hydraulic Engineering > Hydraulic investigation of hydraulic design > Foundation and its reinforcement > Seepage of hydraulic structures and impervious
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