文章基本信息

标题：Parameters sensitivity Analysis of the Duncan-Chang Model Based on Orthogonal Test
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作者：Song zhiyu ; Dong lili ; Bai zhengxiong 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：3
页码：1-7
DOI：10.1088/1755-1315/304/3/032084
出版社：IOP Publishing
摘要：This paper aimed at the problems of huge computation burdens and poor accuracy because of too many parameters in the embankment dam's inversion. Authors designed a mixed-level test for eight parameters of the Duncan-Chang Model: K, n, R_f , K_b , m, c, ₀, and Δ through an orthogonal test method and numerical analysis with FEM. Using the different directional displacement of two nodes and principal stress of element as the test index and through variance analysis, we can conclude that K, K_b and ₀ are sensitive parameters which control the strain and stress of dam, and which should be accurately obtained by back-analysis.