Stability Assessment of Multi-Stage Slopes Considering Local Failure
The analytical method for slope stability analysis requires a collapse mechanism in advance. The collapse mechanism for a multi-staged slope is generally assumed to be overall failure, whereas this kind of slope may suffer from local failure. However, a local failure is rarely reported in the previo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-06-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.798791/full |
| _version_ | 1811240553186066432 |
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| author | Haochen Wu Miaojun Sun Jinnan Wang |
| author_facet | Haochen Wu Miaojun Sun Jinnan Wang |
| author_sort | Haochen Wu |
| collection | DOAJ |
| description | The analytical method for slope stability analysis requires a collapse mechanism in advance. The collapse mechanism for a multi-staged slope is generally assumed to be overall failure, whereas this kind of slope may suffer from local failure. However, a local failure is rarely reported in the previous research for multi-staged slopes, which may result in an overestimate for slope stability. To this end, local failure is incorporated into the collapse mechanism for the first time, so as to develop a complete approach to assess the stability of multi-stage slopes. The modified pseudo-dynamic method is conducted to properly account for seismic effects. Thanks to the limit analysis method and strength reduction technique, the safety factor of a multi-stage slope is obtained. The result obtained by the presented approach shows a good agreement with that of previous literature and numerical calculations. The collapse mechanism of multi-stage slopes is studied, and the safety factor is presented schematically for a wide range of parameters. The results show that the local failure for a multi-stage slope often manifests under the intense seismic effects. |
| first_indexed | 2024-04-12T13:22:17Z |
| format | Article |
| id | doaj.art-e07f49528f094e91abb85364d31272c3 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-12T13:22:17Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-e07f49528f094e91abb85364d31272c32022-12-22T03:31:27ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-06-011010.3389/feart.2022.798791798791Stability Assessment of Multi-Stage Slopes Considering Local FailureHaochen Wu0Miaojun Sun1Jinnan Wang2Zhejiang Provincial Seaport Investment & Operation Group Co., Ltd., Ningbo, ChinaPowerchina Huadong Engineering Corporation Limited, Zhejiang Engineering Research Center of Marine Geotechnical Investigation Technology and Equipment, Hangzhou, ChinaSchool of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou, ChinaThe analytical method for slope stability analysis requires a collapse mechanism in advance. The collapse mechanism for a multi-staged slope is generally assumed to be overall failure, whereas this kind of slope may suffer from local failure. However, a local failure is rarely reported in the previous research for multi-staged slopes, which may result in an overestimate for slope stability. To this end, local failure is incorporated into the collapse mechanism for the first time, so as to develop a complete approach to assess the stability of multi-stage slopes. The modified pseudo-dynamic method is conducted to properly account for seismic effects. Thanks to the limit analysis method and strength reduction technique, the safety factor of a multi-stage slope is obtained. The result obtained by the presented approach shows a good agreement with that of previous literature and numerical calculations. The collapse mechanism of multi-stage slopes is studied, and the safety factor is presented schematically for a wide range of parameters. The results show that the local failure for a multi-stage slope often manifests under the intense seismic effects.https://www.frontiersin.org/articles/10.3389/feart.2022.798791/fullmulti-stage slopeoverall failurelocal failureseismic effectmodified pseudo-dynamic approach |
| spellingShingle | Haochen Wu Miaojun Sun Jinnan Wang Stability Assessment of Multi-Stage Slopes Considering Local Failure Frontiers in Earth Science multi-stage slope overall failure local failure seismic effect modified pseudo-dynamic approach |
| title | Stability Assessment of Multi-Stage Slopes Considering Local Failure |
| title_full | Stability Assessment of Multi-Stage Slopes Considering Local Failure |
| title_fullStr | Stability Assessment of Multi-Stage Slopes Considering Local Failure |
| title_full_unstemmed | Stability Assessment of Multi-Stage Slopes Considering Local Failure |
| title_short | Stability Assessment of Multi-Stage Slopes Considering Local Failure |
| title_sort | stability assessment of multi stage slopes considering local failure |
| topic | multi-stage slope overall failure local failure seismic effect modified pseudo-dynamic approach |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.798791/full |
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