Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements
This work investigates an analysis method for the stability of a three-dimensional (3D) slope with weak zones considering spatial variability on the basis of two-phase random media and the finite element method. By controlling the volume fractions of rock and weak zones, two-phase random media are i...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/2076-3417/11/21/9852 |
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| author | Yu-Xiang Xia Po Cheng Man-Man Liu Jun Hu |
| author_facet | Yu-Xiang Xia Po Cheng Man-Man Liu Jun Hu |
| author_sort | Yu-Xiang Xia |
| collection | DOAJ |
| description | This work investigates an analysis method for the stability of a three-dimensional (3D) slope with weak zones considering spatial variability on the basis of two-phase random media and the finite element method. By controlling the volume fractions of rock and weak zones, two-phase random media are incorporated into the 3D slope model to simulate the random distribution of rock and weak zones. Then, a rotation of a Gaussian random field is performed to account for the inclination of the weak zones. The validity of the proposed model for use in the analysis of the stability of 3D slopes with weak zones was verified by comparing it to existing results and analytical solutions. The failure mechanism of the slope is considered by examining the plastic failure zone at incipient slope failure. The safety factor is sensitive to the inclination of the weak zones, but it is predictable. Parametric studies on the inclination of the layer of weak zones demonstrate that when the rotation angle of the weak zones is approximately parallel to the slope inclination, the slope is prone to slippage along the weak zones, resulting in a significant reduction in the safety factor. The findings of this research can serve as the foundation for further research on the stability of slopes with weak zones. |
| first_indexed | 2024-03-10T06:08:01Z |
| format | Article |
| id | doaj.art-db1baebb90fc4b64852bf616cd3bc68e |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T06:08:01Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-db1baebb90fc4b64852bf616cd3bc68e2023-11-22T20:24:04ZengMDPI AGApplied Sciences2076-34172021-10-011121985210.3390/app11219852Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite ElementsYu-Xiang Xia0Po Cheng1Man-Man Liu2Jun Hu3State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaState Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, ChinaSchool of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaThis work investigates an analysis method for the stability of a three-dimensional (3D) slope with weak zones considering spatial variability on the basis of two-phase random media and the finite element method. By controlling the volume fractions of rock and weak zones, two-phase random media are incorporated into the 3D slope model to simulate the random distribution of rock and weak zones. Then, a rotation of a Gaussian random field is performed to account for the inclination of the weak zones. The validity of the proposed model for use in the analysis of the stability of 3D slopes with weak zones was verified by comparing it to existing results and analytical solutions. The failure mechanism of the slope is considered by examining the plastic failure zone at incipient slope failure. The safety factor is sensitive to the inclination of the weak zones, but it is predictable. Parametric studies on the inclination of the layer of weak zones demonstrate that when the rotation angle of the weak zones is approximately parallel to the slope inclination, the slope is prone to slippage along the weak zones, resulting in a significant reduction in the safety factor. The findings of this research can serve as the foundation for further research on the stability of slopes with weak zones.https://www.mdpi.com/2076-3417/11/21/9852slope stabilitytwo-phase random mediaslope with weak zonesfinite element analysisrandom field |
| spellingShingle | Yu-Xiang Xia Po Cheng Man-Man Liu Jun Hu Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements Applied Sciences slope stability two-phase random media slope with weak zones finite element analysis random field |
| title | Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements |
| title_full | Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements |
| title_fullStr | Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements |
| title_full_unstemmed | Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements |
| title_short | Numerical Modeling of 3D Slopes with Weak Zones by Random Field and Finite Elements |
| title_sort | numerical modeling of 3d slopes with weak zones by random field and finite elements |
| topic | slope stability two-phase random media slope with weak zones finite element analysis random field |
| url | https://www.mdpi.com/2076-3417/11/21/9852 |
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