Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations
There were a small amount of obvious offsets at the bearing of bridge piers built on an artificial gentle canal bank terrace and many tensile cracks visible at the surface of the mortar block stones covering the terrace soil in several years following construction. To determine these reasons, a comp...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/3479575 |
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| author | Yongzheng Qi Zongzhi Wang Haoqing Xu Zirui Yuan |
| author_facet | Yongzheng Qi Zongzhi Wang Haoqing Xu Zirui Yuan |
| author_sort | Yongzheng Qi |
| collection | DOAJ |
| description | There were a small amount of obvious offsets at the bearing of bridge piers built on an artificial gentle canal bank terrace and many tensile cracks visible at the surface of the mortar block stones covering the terrace soil in several years following construction. To determine these reasons, a comprehensive site investigation and a wide variety of tests were implemented, which included geophysical tests, in situ tests, laboratory tests, pile integrity detection, and numerical analysis with the finite element method (FEM). The results revealed that the soil of the low-angle slope was the potentially low-expansive clay soil. The reduction in soil shear strength deriving from seasonal wet-dry cycles and river-level variations led to the instability and failure of the low-angle low-expansive soil slope, which triggered the collapses of the soil slope and lots of fractures in the piles of the bridge foundation. The typical characteristics of the instability and failure of the low-angle low-expansive soil slope were tractional detachment and slow sliding. |
| format | Article |
| id | doaj-art-42ec65fdf10b4e2fb8b4bd85a78b6d24 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-42ec65fdf10b4e2fb8b4bd85a78b6d242025-02-03T01:01:30ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/34795753479575Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level VariationsYongzheng Qi0Zongzhi Wang1Haoqing Xu2Zirui Yuan3College of Civil and Transportation Engineering, Hohai University, Xikang Road, Nanjing 210098, ChinaState Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaSchool of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Mengxi Road, Zhenjiang 212000, ChinaSchool of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Mengxi Road, Zhenjiang 212000, ChinaThere were a small amount of obvious offsets at the bearing of bridge piers built on an artificial gentle canal bank terrace and many tensile cracks visible at the surface of the mortar block stones covering the terrace soil in several years following construction. To determine these reasons, a comprehensive site investigation and a wide variety of tests were implemented, which included geophysical tests, in situ tests, laboratory tests, pile integrity detection, and numerical analysis with the finite element method (FEM). The results revealed that the soil of the low-angle slope was the potentially low-expansive clay soil. The reduction in soil shear strength deriving from seasonal wet-dry cycles and river-level variations led to the instability and failure of the low-angle low-expansive soil slope, which triggered the collapses of the soil slope and lots of fractures in the piles of the bridge foundation. The typical characteristics of the instability and failure of the low-angle low-expansive soil slope were tractional detachment and slow sliding.http://dx.doi.org/10.1155/2020/3479575 |
| spellingShingle | Yongzheng Qi Zongzhi Wang Haoqing Xu Zirui Yuan Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations Advances in Civil Engineering |
| title | Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations |
| title_full | Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations |
| title_fullStr | Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations |
| title_full_unstemmed | Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations |
| title_short | Instability Analysis of a Low-Angle Low-Expansive Soil Slope under Seasonal Wet-Dry Cycles and River-Level Variations |
| title_sort | instability analysis of a low angle low expansive soil slope under seasonal wet dry cycles and river level variations |
| url | http://dx.doi.org/10.1155/2020/3479575 |
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