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New ground anchor and soil nail guidance under development

Ciria has said that work has recently started on a new guidance document that will aid condition appraisal and remedial treatment of grouted ground anchors and soil nails.

Ciria has said that there is case history evidence of anchor failures worldwide and it is anticipated that instances of failure in the UK may increase as permanent anchors start to age.

Similarly, the design life of soil nails varies and regular inspection and maintenance are needed the design life to be achieved and to make sure that safety is not degraded.

According to Ciria associate director Kieran Tully, this project will prepare needed guidance in the form of a report that will use case histories, published material and industry experiences to describe good practices and recommendations to assessing the condition and providing remediation to grouted anchors and soil nails.

The guidance will look at typical applications, as well as historic installations and legacy system. The guidance will set out current design codes and guidance and bring together existing management practices, as well as recommending improve management practices with details of how to undertake inspection, monitoring, instrumentation, testing and remedial options.

Work on the new guidance is being led by Gavin & Doherty Geosolutions senior engineer John O’Donovan and the guidance is expected to be published in summer 2019.

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