Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi
In the process of analyzing the stability of loess slope, determining the value of strength parameter c and φ is a much more complex problem, and there is not mature and systematic method. In this paper, the inverse analysis of the value c and φ in Shanxi Jijiayuan cutting loess slope, about 51.6m,...
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2021-01-01
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doaj-d3ade27480474bd8a44c644a9a4895e92021-07-07T11:33:20ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012760101910.1051/e3sconf/202127601019e3sconf_wchbe2021_01019Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, ShanxiXi Yu0Zhao Jifei1Li Gang2Shaanxi Key Laboratory of Safety and Durability of Concrete StructuresXI’an shiyou universityShaanxi Key Laboratory of Safety and Durability of Concrete StructuresIn the process of analyzing the stability of loess slope, determining the value of strength parameter c and φ is a much more complex problem, and there is not mature and systematic method. In this paper, the inverse analysis of the value c and φ in Shanxi Jijiayuan cutting loess slope, about 51.6m, by bishop method and Spencer method based on the statistical strength indexes. To analyze the stress of the slope used finite element and compare the inverse result and test data. The result indicates the value of c will control the stability of slopes in Q3 layer, and the value of φ will control the stability of slopes in Q2; the inverse result is close to the result with direct shear test when the moisture content is sample’s plastic limit moisture content. we can select strength parameters obtained though the direct and quick shear under the conditions that the soil sample’s moisture content is plastic limit moisture content for evaluation the slope stability. For the high slope, it should be cautious to select the φ in the lower part.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/52/e3sconf_wchbe2021_01019.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xi Yu Zhao Jifei Li Gang |
spellingShingle |
Xi Yu Zhao Jifei Li Gang Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi E3S Web of Conferences |
author_facet |
Xi Yu Zhao Jifei Li Gang |
author_sort |
Xi Yu |
title |
Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi |
title_short |
Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi |
title_full |
Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi |
title_fullStr |
Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi |
title_full_unstemmed |
Inversion analysis of strength parameters of loess cutting high slope in Jijiayuan, Shanxi |
title_sort |
inversion analysis of strength parameters of loess cutting high slope in jijiayuan, shanxi |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2021-01-01 |
description |
In the process of analyzing the stability of loess slope, determining the value of strength parameter c and φ is a much more complex problem, and there is not mature and systematic method. In this paper, the inverse analysis of the value c and φ in Shanxi Jijiayuan cutting loess slope, about 51.6m, by bishop method and Spencer method based on the statistical strength indexes. To analyze the stress of the slope used finite element and compare the inverse result and test data. The result indicates the value of c will control the stability of slopes in Q3 layer, and the value of φ will control the stability of slopes in Q2; the inverse result is close to the result with direct shear test when the moisture content is sample’s plastic limit moisture content. we can select strength parameters obtained though the direct and quick shear under the conditions that the soil sample’s moisture content is plastic limit moisture content for evaluation the slope stability. For the high slope, it should be cautious to select the φ in the lower part. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/52/e3sconf_wchbe2021_01019.pdf |
work_keys_str_mv |
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