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A40 Brecon bypass landslide: investigation, remediation and asset management for climate resilience.

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Title: A40 Brecon bypass landslide: investigation, remediation and asset management for climate resilience.
Authors: St John, Thomas W.1 (AUTHOR) thomas.stjohn@mottmac.com, Oliphant, Hana1 (AUTHOR) hana.oliphant@mottmac.com, Butler, Matt1 (AUTHOR) matt.butler@mottmac.com
Source: Quarterly Journal of Engineering Geology & Hydrogeology. Aug2024, Vol. 57 Issue 3, p1-12. 12p.
Subjects: Asset management, Earthwork, Traffic lanes, Desks, Landslides, Collections
Abstract: During February 2020, a 300 m3 slope failure occurred within a trunk road earthwork at Brecon, Wales, leading to the initial closure of all four lanes of the dual carriageway. As part of Welsh Government's strategy for climate resilient infrastructure and in accordance with the CD622 Managing Geotechnical Risk framework, the site investigation commenced in 2020 and proceeded through various phases to the completion of remedial works in 2022. This paper discusses the approach to management of geotechnical risk for the scheme, from desk study through implementation of an on-slope ground investigation and interim risk mitigation, to design and implementation of the remedial measures. The paper describes the nature and trigger of the landslide case study, adaptations in the design phase to provide resilience to geohazards and future climatic conditions, the constraints that were overcome during the site works and measures taken to manage residual risk and ensure ease of maintenance. Thematic collection: This article is part of the Geo-resilience and infrastructure collection available at: https://www.lyellcollection.org/topic/collections/geo-resilience-and-infrastructure [ABSTRACT FROM AUTHOR]
Copyright of Quarterly Journal of Engineering Geology & Hydrogeology is the property of Geological Society Publishing House and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 178819761
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: A40 Brecon bypass landslide: investigation, remediation and asset management for climate resilience.
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  Data: <searchLink fieldCode="AR" term="%22St+John%2C+Thomas+W%2E%22">St John, Thomas W.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> thomas.stjohn@mottmac.com</i><br /><searchLink fieldCode="AR" term="%22Oliphant%2C+Hana%22">Oliphant, Hana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hana.oliphant@mottmac.com</i><br /><searchLink fieldCode="AR" term="%22Butler%2C+Matt%22">Butler, Matt</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> matt.butler@mottmac.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Quarterly+Journal+of+Engineering+Geology+%26+Hydrogeology%22">Quarterly Journal of Engineering Geology & Hydrogeology</searchLink>. Aug2024, Vol. 57 Issue 3, p1-12. 12p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Asset+management%22">Asset management</searchLink><br /><searchLink fieldCode="DE" term="%22Earthwork%22">Earthwork</searchLink><br /><searchLink fieldCode="DE" term="%22Traffic+lanes%22">Traffic lanes</searchLink><br /><searchLink fieldCode="DE" term="%22Desks%22">Desks</searchLink><br /><searchLink fieldCode="DE" term="%22Landslides%22">Landslides</searchLink><br /><searchLink fieldCode="DE" term="%22Collections%22">Collections</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: During February 2020, a 300 m3 slope failure occurred within a trunk road earthwork at Brecon, Wales, leading to the initial closure of all four lanes of the dual carriageway. As part of Welsh Government's strategy for climate resilient infrastructure and in accordance with the CD622 Managing Geotechnical Risk framework, the site investigation commenced in 2020 and proceeded through various phases to the completion of remedial works in 2022. This paper discusses the approach to management of geotechnical risk for the scheme, from desk study through implementation of an on-slope ground investigation and interim risk mitigation, to design and implementation of the remedial measures. The paper describes the nature and trigger of the landslide case study, adaptations in the design phase to provide resilience to geohazards and future climatic conditions, the constraints that were overcome during the site works and measures taken to manage residual risk and ensure ease of maintenance. Thematic collection: This article is part of the Geo-resilience and infrastructure collection available at: https://www.lyellcollection.org/topic/collections/geo-resilience-and-infrastructure [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Quarterly Journal of Engineering Geology & Hydrogeology is the property of Geological Society Publishing House and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=178819761
RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1144/qjegh2024-026
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 1
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      – SubjectFull: Asset management
        Type: general
      – SubjectFull: Earthwork
        Type: general
      – SubjectFull: Traffic lanes
        Type: general
      – SubjectFull: Desks
        Type: general
      – SubjectFull: Landslides
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      – SubjectFull: Collections
        Type: general
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      – TitleFull: A40 Brecon bypass landslide: investigation, remediation and asset management for climate resilience.
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            NameFull: St John, Thomas W.
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            NameFull: Oliphant, Hana
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            – D: 01
              M: 08
              Text: Aug2024
              Type: published
              Y: 2024
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