Back-Analysis Of Embankment Dam With GA Based On Immunology Principle

Embankment dam which material can be got easily is the main style during many countries on the earth. its research of security analytical method is a hot issue.Using the in-situ observation data to back-analyze the dam material parameter, and forecast the actual running state of dam is one of the main methods of safety evaluation.So it is of great significance to study the theories and methods of back-analysis.In this paper, after reading lots of correlation literatures, the back-analysis principle.of the Embankment Dam material parameters are lucubrated and a material method of back-analysis model parameter which is based on on-site observation date is discussed, and the back-analysis of genetic algorithms based on Immunology principle is empoldered combined with the projiet example of maopingxi dam.Useing the stress observation date at the bottorm of Asphalt-concrete Core wall during the constructing.period to back-analysis the core wall's model parameter.the result of this project have verified the genetic algorithms based on Immunology principle used in embankment dam back-analysis to be effective.The main contents are as follows:1.Basing on the SGA and uniting non-line taxis strategy , the improved genetic alogorithm program is presented in fortran language , and its feasibility is analyzed by a simple function.2.The GA based on immunology principle which uses the composition regulation conquered GA's defect sach as the way of converging can not control , the speed of converging is slow , and this method's validity has been tested by simple function.3.Basing on the existing back-analysis method , empoldered the genetic algorithms Based on Immunology principle , and used in the core wall model parameters back-analysis of the maopingxi project to test it's validity.4.Wanted to forecast work behavior of the dam , the 2-D FEM analysis has been carried on the project of maopingxi dam.In this process the back-analysis values is used.