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Study on Analytical Method of the Void of Concrete Faced Rock-fill Dam

Author: GuYongMing
Tutor: ZhengDongJian
School: Hohai University
Course: Hydraulic Structure Engineering
Keywords: Faced rockfill dam Panel Void Contact mechanics Parameter inversion Evolutionary Algorithm Artificial Neural Networks Direct constraint method
CLC: TV641.4
Type: Master's thesis
Year: 2006
Downloads: 168
Quote: 1
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Abstract


With the advent of the 200m level concrete face rockfill CFRD development is facing new challenges . The rheological and rockfill panel Void problems CFRD is hot and difficult . In this paper, the measured data , in -depth analysis of the characteristics of concrete face rockfill dam based on parameter back analysis application contact mechanics , and conducted in-depth research and analysis on the the CFRD panel Void , as follows : ( 1 ) study the panel rockfill dam constitutive model and its rheological properties Duncan EB model and three-parameter rheological model developed by the user subroutine will be embedded in the commercial general-purpose finite element software MSC.Marc and stage loading and loading of the initial stress-strain faced rockfill dam construction simulation , finite element simulation . ( 2 ) parameter inversion for concrete face rockfill dam characteristics , combined with the measured data , the establishment of the Anti - analytical model of the evolution of artificial neural network parameters , modeling specific methods and steps . ( 3 ) on the basis of in-depth the analysis panel Void features of its contact element model analysis method , combined with MSC.Marc software panel and cushion the contact characteristics simulation . Based on direct constraint method , to study the the Void problem of rockfill dam of contact mechanics analysis . ( 4) application of the aforementioned theories and methods , Tianshengqiao panel rockfill dam Void finite element analysis , the calculation results agree well with the measured data , analysis of faced rockfill dam generates Void prevention and treatment measures .

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