Three-Dimensional Stability Investigation of Trapdoors in Collapse and Blowout Conditions
Article
Article Title | Three-Dimensional Stability Investigation of Trapdoors in Collapse and Blowout Conditions |
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ERA Journal ID | 4202 |
Article Category | Article |
Authors | Shiau, Jim (Author), Keawsawasvong, Suraparb (Author) and Lee, Ji-Sung (Author) |
Journal Title | International Journal of Geomechanics |
Journal Citation | 22 (4), pp. 1-11 |
Article Number | 04022007 |
Number of Pages | 11 |
Year | 2022 |
Publisher | American Society of Civil Engineers |
Place of Publication | United States |
ISSN | 1532-3641 |
1943-5622 | |
Digital Object Identifier (DOI) | https://doi.org/10.1061/(ASCE)GM.1943-5622.0002339 |
Web Address (URL) | https://ascelibrary.org/doi/10.1061/%28ASCE%29GM.1943-5622.0002339 |
Abstract | Road-related sinkholes are of great concerns nowadays, appearing frequently in media stories. In the undrained stability analysis, a dimensionless stability number that is known as Broms and Bennermark's original stability number expresses the combined effect of surface surcharge pressure, self-weight of the soil, and the supporting pressure. This 'critical' undrained stability number, Nc, is used in this paper to formulate three-dimensional (3D) upper-bound and lower-bound solutions in active (collapse) and passive (blowout) scenarios of sinkhole stability using the classic trapdoor problem. Design charts, tables, and equations were developed to cover a wide range of practical design parameters. Together with modern geophysics techniques for the detection of underground cavity as well as the findings of the associated failure patterns in this paper, the study should, therefore, be of value to practitioners in their daily decision making. |
Keywords | Failure; Finite-element limit analysis; Pipeline; Sinkhole; Stability; Trapdoor |
ANZSRC Field of Research 2020 | 400502. Civil geotechnical engineering |
Byline Affiliations | School of Civil Engineering and Surveying |
Thammasat University, Thailand | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q70z7/three-dimensional-stability-investigation-of-trapdoors-in-collapse-and-blowout-conditions
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