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Stability assessment approach for soil slopes in seasonal cold regions
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| Title: | Stability assessment approach for soil slopes in seasonal cold regions |
| Authors: | Subramanian, Srikrishnan Siva Browse this author | | Ishikawa, Tatsuya2 Browse this author →KAKEN DB | | Tokoro, Tetsuya Browse this author |
| Authors(alt): | 石川, 達也2 |
| Keywords: | Slope stability | | Seasonal cold regions | | Non-isothermal seepage | | Freeze-thaw action | | Snowmelt water |
| Issue Date: | 20-Apr-2017 |
| Publisher: | Elsevier |
| Journal Title: | Engineering geology |
| Volume: | 221 |
| Start Page: | 154 |
| End Page: | 169 |
| Publisher DOI: | 10.1016/j.enggeo.2017.03.008 |
| Abstract: | In Hokkaido Japan, soil slope failures along some of the national highways are reported frequently in recent years. A stability assessment method which can consider the impact of seasonal changes like freeze-thaw action, snow melt water infiltration etc. is of utmost importance and considered to be an immediate requirement for geotechnical practitioners, in order to properly predict the slope stability. In this study, a slope stability assessment approach based on two-dimensional numerical modelling is recommended which considers the water content changes of the soil induced by the seasonal climatic effects i.e. freeze-thaw action, snowmelt water infiltration etc. Two case studies of slope failures in Hokkaido have been studied using the recommended approach. In order to visualise the climatic parameters of most influence on slope stability, parametric studies have been performed through which many useful results in view of the soil slope stability in seasonal cold regions have been obtained. It is found that the freeze-thaw action has a considerable impact on the soil water content and slope stability. On the other hand, the snowmelt water infiltration has a very significant impact on soil slope stability. The recommended numerical modelling approach is found to be very useful in analysing the soil slope stability in seasonal cold regions. (C) 2017 Elsevier B.V. All rights reserved. |
| Rights: | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license | | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/73692 |
| Appears in Collections: | 公共政策学教育部・公共政策学連携研究部 (Graduate School of Public Policy / Faculty of Public Policy) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 石川 達也
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