Reliability assessment of ultimate limit state of twin caverns
Construction of a cavern in close proximity to an existing cavern modifies the state of stresses and movements in a zone around the existing cavern, as some degree of interaction between these two caverns generally takes place. This study investigates the interaction of two parallel caverns and the...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2017
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| Online Access: | https://hdl.handle.net/10356/80761 http://hdl.handle.net/10220/42219 |
| _version_ | 1811697260576112640 |
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| author | Zhang, Wengang Goh, Anthony T. C. |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Zhang, Wengang Goh, Anthony T. C. |
| author_sort | Zhang, Wengang |
| collection | NTU |
| description | Construction of a cavern in close proximity to an existing cavern modifies the state of stresses and movements in a zone around the existing cavern, as some degree of interaction between these two caverns generally takes place. This study investigates the interaction of two parallel caverns and the influence of such interaction on stress-induced global stability in terms of a global factor of safety. A series of finite difference analyses were performed to derive the global factor of safety of a system of two parallel and adjacent caverns. A mathematical response surface model was then built using the multivariate adaptive regression splines (MARS) approach and a series of charts based on this surrogate model were developed to relate the global factor of safety to the critical parameters. The built MARS model is of high accuracy and is simple to interpret and can be used to perform probabilistic assessment of ultimate limit state of twin caverns. |
| first_indexed | 2024-10-01T07:52:26Z |
| format | Journal Article |
| id | ntu-10356/80761 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:52:26Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/807612020-03-07T11:43:31Z Reliability assessment of ultimate limit state of twin caverns Zhang, Wengang Goh, Anthony T. C. School of Civil and Environmental Engineering reliability assessment ultimate limit state Construction of a cavern in close proximity to an existing cavern modifies the state of stresses and movements in a zone around the existing cavern, as some degree of interaction between these two caverns generally takes place. This study investigates the interaction of two parallel caverns and the influence of such interaction on stress-induced global stability in terms of a global factor of safety. A series of finite difference analyses were performed to derive the global factor of safety of a system of two parallel and adjacent caverns. A mathematical response surface model was then built using the multivariate adaptive regression splines (MARS) approach and a series of charts based on this surrogate model were developed to relate the global factor of safety to the critical parameters. The built MARS model is of high accuracy and is simple to interpret and can be used to perform probabilistic assessment of ultimate limit state of twin caverns. Accepted version 2017-03-31T05:52:02Z 2019-12-06T13:58:22Z 2017-03-31T05:52:02Z 2019-12-06T13:58:22Z 2016 Journal Article Zhang, W., & Goh, A. T. C. (2016). Reliability assessment of ultimate limit state of twin caverns. Geomechanics and Geoengineering, 12(1), 48-59. 1748-6025 https://hdl.handle.net/10356/80761 http://hdl.handle.net/10220/42219 10.1080/17486025.2016.1162331 en Geomechanics and Geoengineering © 2016 Informa UK Limited. This is the author created version of a work that has been peer reviewed and accepted for publication by Geomechanics and Geoengineering, Informa UK Limited. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1080/17486025.2016.1162331]. 37 p. application/pdf |
| spellingShingle | reliability assessment ultimate limit state Zhang, Wengang Goh, Anthony T. C. Reliability assessment of ultimate limit state of twin caverns |
| title | Reliability assessment of ultimate limit state of twin caverns |
| title_full | Reliability assessment of ultimate limit state of twin caverns |
| title_fullStr | Reliability assessment of ultimate limit state of twin caverns |
| title_full_unstemmed | Reliability assessment of ultimate limit state of twin caverns |
| title_short | Reliability assessment of ultimate limit state of twin caverns |
| title_sort | reliability assessment of ultimate limit state of twin caverns |
| topic | reliability assessment ultimate limit state |
| url | https://hdl.handle.net/10356/80761 http://hdl.handle.net/10220/42219 |
| work_keys_str_mv | AT zhangwengang reliabilityassessmentofultimatelimitstateoftwincaverns AT gohanthonytc reliabilityassessmentofultimatelimitstateoftwincaverns |