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- Publisher Website: 10.1016/j.apm.2020.04.001
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Article: Decoupled reliability-based geotechnical design of deep excavations of soil with spatial variability
Title | Decoupled reliability-based geotechnical design of deep excavations of soil with spatial variability |
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Authors | |
Keywords | Earth retaining system Basal heave Random field Stochastic simulation Design optimization |
Issue Date | 2020 |
Citation | Applied Mathematical Modelling, 2020, v. 85, p. 46-59 How to Cite? |
Abstract | © 2020 Elsevier Inc. This paper presents a general decoupled method for reliability-based geotechnical design that takes into account the spatial variability of soil properties. In this method, reliability analyses that require a lot of computational resources are decoupled from the optimization procedure by approximating the failure probability function globally. Failure samples are iteratively generated over the entire design space so that their global distribution information can be extracted to construct the failure probability function. The method is computationally efficient, is flexible to implement, and is well suited for geotechnical problems that may involve sophisticated models. A design example of two-dimensional deep excavation against basal heave is discussed for Singapore marine clay where the density and normalized undrained shear strength of soil mass are modeled as random fields. Results demonstrate that the proposed method works well in practice and is advantageous over the coupled or locally decoupled reliability-based geotechnical design methods. |
Persistent Identifier | http://hdl.handle.net/10722/296207 |
ISSN | 2023 Impact Factor: 4.4 2023 SCImago Journal Rankings: 1.000 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Liu, Wang Sheng | - |
dc.contributor.author | Cheung, Sai Hung | - |
dc.date.accessioned | 2021-02-11T04:53:04Z | - |
dc.date.available | 2021-02-11T04:53:04Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Applied Mathematical Modelling, 2020, v. 85, p. 46-59 | - |
dc.identifier.issn | 0307-904X | - |
dc.identifier.uri | http://hdl.handle.net/10722/296207 | - |
dc.description.abstract | © 2020 Elsevier Inc. This paper presents a general decoupled method for reliability-based geotechnical design that takes into account the spatial variability of soil properties. In this method, reliability analyses that require a lot of computational resources are decoupled from the optimization procedure by approximating the failure probability function globally. Failure samples are iteratively generated over the entire design space so that their global distribution information can be extracted to construct the failure probability function. The method is computationally efficient, is flexible to implement, and is well suited for geotechnical problems that may involve sophisticated models. A design example of two-dimensional deep excavation against basal heave is discussed for Singapore marine clay where the density and normalized undrained shear strength of soil mass are modeled as random fields. Results demonstrate that the proposed method works well in practice and is advantageous over the coupled or locally decoupled reliability-based geotechnical design methods. | - |
dc.language | eng | - |
dc.relation.ispartof | Applied Mathematical Modelling | - |
dc.subject | Earth retaining system | - |
dc.subject | Basal heave | - |
dc.subject | Random field | - |
dc.subject | Stochastic simulation | - |
dc.subject | Design optimization | - |
dc.title | Decoupled reliability-based geotechnical design of deep excavations of soil with spatial variability | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.apm.2020.04.001 | - |
dc.identifier.scopus | eid_2-s2.0-85084334764 | - |
dc.identifier.volume | 85 | - |
dc.identifier.spage | 46 | - |
dc.identifier.epage | 59 | - |
dc.identifier.isi | WOS:000539412000003 | - |
dc.identifier.issnl | 0307-904X | - |