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Back-Analysis of Embankment Dam with GA Based on Immunology Principle

Author: ZhangMeiYing
Tutor: ZhuZuo
School: Hohai University
Course: Hydraulic Structure Engineering
Keywords: Principles of immunology Immune Genetic Algorithm Stress-strain Inversion Analysis
CLC: TV641
Type: Master's thesis
Year: 2006
Downloads: 146
Quote: 1
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Abstract


Embankment dam is a traditional type of dam , the structure is simple , easily drawn , dam type of dam construction in most countries of the world . Security analysis method is the the dam engineering research hotspot . The use of in situ observations the dam material counter- analysis , and then predict actual work traits of the dam is the dam safety evaluation , thus to embankment dams inversion study of the theory and methods has great significance . Read a lot of literature on the basis , in-depth discussion of the principle of inversion analysis of embankment dam material model parameters , and to explore the specific method for the analysis of soil model parameters based on field observation information retrieval , developed based on the principle of Immunology the embankment dams counter- analysis of the genetic algorithm program . Finally asphalt concrete core wall dam project , the Three Gorges Maopingxi instance , through the use of field observation results achieved by the dam in the filling stage , Duncan Chang E-μ model parameters of asphalt concrete inversion analysis . The inversion results verify the theory proposed method is feasible , the development of the program is the validity of . Specific work as follows : Genetic Algorithms based on the combination of the non - linear ordering strategy and elitist strategy , improved genetic algorithm using FORTRAN language . From optimizing the example of a simple function , analyzes the feasibility of the program . 2 . Genetic algorithm random search capability , but can not control the direction of the convergence , easy to fall into local optimal solution and slow convergence . Regulation mechanism of genetic algorithm makes use of concentration based on the principles of immunology , genetic algorithm can overcome the above shortcomings , the article with a simple function program to test and verify the effectiveness of the algorithm . The existing inversion analysis method based on the combination of the basic principles of immune genetic algorithm , developed a genetic algorithm based on the principles of immunology counter- analysis program , and applied to the Three Gorges Maopingxi asphalt concrete core dam core wall material mechanics model parameter inversion analysis . 4. Use of the inversion parameter values ??of the asphalt concrete material , two-dimensional finite element calculation of the Three Gorges Maopingxi asphalt concrete core dam , to predict the behavior of the actual running of the dam , to provide the basis for dam safety use .

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CLC: > Industrial Technology > Hydraulic Engineering > Water control,hydraulic structures > Dams > Earth dam (local material dams, fill dams )
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