Following on from his published interview in the September 2018 edition of Ground Engineering magazine, Dr Devon Mothersille has published a Technical Note covering the new testing standard EN ISO 22477-5: 2018 with particular reference to UK practice.
It should be noted that Ground Engineering magazine have issued an apology for an error in the printing of the figures associated with this feature. The corrected version is available using the following link:
As the UK representative on the task group advising on the revision of Eurocode 7 – Anchors (TC 250/SC7/WG3/TG5), Dr Mothersille attended a series of meetings held over a period of two days at Villa Doria d’Angri in Naples, Italy. This beautiful and historic setting provided the ideal environment for extensive and detailed discussions covering a wide range of issues related to the second generation of Eurocode 7.
The meetings were very well attended with over 100 delegates from countries all over Europe.
Based on his own area of expertise, Dr Mothersille attended general sessions on anchors, on both days, and also actively participated in specially convened additional sessions aimed at tackling comments submitted by task group members on the redraft of EC7 – clause 8 (Anchors).
Enjoy some images from Naples
View of Mount Vesuvius from Pompeii
Delegates enjoy the beautiful backdrop during a break between sessions at Villa Doria d’Angri
Stunning panoramic view from the meeting venue: Villa Doria d’Angri
Delegates enjoy a meal at restaurant La Bersagliera
Some members of Task Group 5 gather for special a session to review comments on latest draft of EC7 -3 (clause 8, Anchors). From left to right; Ira Gutjahr, Anders Kullingsjo, Devon Mothersille, Eva Dornecker, Jean-Paul Volcke, Noel Huybrechts and Klaus Dietz
Dr Mothersille is a member of the Project Steering Group tasked to guide and advise the technical authors of the new CIRIA report RP 1061 entitled ‘Grouted anchors and soil nails condition appraisal and remedial treatment’. At a meeting held at the headquarters of Chartered Institution of Highways and Transportation in London, the group made substantial progress with the document, discussing report format, suitable case history content and numerous other technical issues. The report should be published in 2019.
The PSG discuss technical issues associated with the forthcoming CIRIA report RP1061
As part of an ongoing initiative to improve knowledge and awareness of Eurocodes, British Standards Institution (BSI) organised a conference entitled ‘Eurocodes – Evolution and Ease of Use: How it will benefit you?’, hosted by the Institution of Structural Engineers at their headquarters in London. Dr Mothersille attended the event and benefited considerably from the information shared by a variety of speakers. These included the Chairman of Eurocode 7 Dr Andrew Bond who presented the latest improvements to Eurocode 7: Geotechnical design and BSI’s Director of Standards, Dr Scott Steedman who talked about Eurocodes and Brexit.
The Chairman of Eurocode 7 delivers his presentation to the audience at the Institution of Structural Engineers
SBMA Ltd’s representative in the US, Dr Antonio Marinucci delivered an excellent presentation at the 8th Conference on Deep Foundation Technologies for Infrastructure Development in India – hosted by DFI India (15th -17th November 2018). The paper supporting the presentation was entitled; ‘Single Bore Multiple Anchor Systems (SBMAs) in Challenging and Variable Ground Conditions’, authored by Dr Marinucci and Dr Mothersille.
In addition Dr Mothersille, Mr Chris Irvin (DSI, UK) and Mr Rajiv Pandey (DSI, India) published a paper at the same conference entitled ‘Recognised Corrosion Protection Methods for Permanent Ground Anchors’.
Dr Mothersille and Dr Marwan Alzaylaie (Senior Manager, DCCA) met at the Royal Overseas League headquarters in Mayfair, London. Dr Alzaylaie attended Dr Mothersille’s lecture in Dubai last month, in Collaboration with Bauer International FZE, and was keen to discuss potential ground anchor applications in Dubai, the evolution of Eurocodes and use the of the innovative software ‘AnchorTest’.
Dr Mothersille and Dr Alzaylaie explore the potential use of the iPad based AnchorTest software for QA/QC strategies on Dubai construction projects
Following the successful delivery of the seminars in Dubai and Abu Dhabi, Dr Mothersille visited Bauer’s Global Gateway residential development construction site in Abu Dhabi.
The project involves an excavation supported by secant pile walls which are themselves stabilized by an anchored pile cap. Importantly all the anchors on the project (166No.) are removable SBMAs with working loads of 800kN and overall lengths of 18.5m. In order to demonstrate removability of the prestressing strand, the client’s representative was invited to witness the removal process.
Three lengths of prestressing strand were successfully removed using a monojack initially and then with an excavator paying due regard to safety during the whole operation.
Enjoy the images of from this site visit.
Panoramic perspective of the Global Gateway Development construction site
Use of mono-jack to initiate removal of prestressing strand Use of excavator to remove prestressing strand from boreholeDr Mothersille congratulates site foreman Mr Anil Kumar for supervising the safe execution of strand removalSite technician Mr Farhan Ahmed reviews digitized stressing records on an iPad using AnchorTestTM software
Dr Mothersille is joined by Mr Ahmed Ibrahim (arcocorp consultants), Mr Sobhi Alkayalli (Lead Development) and Mr Maninder Singh (Project Manager, Bauer) following successful removal of prestressing strand from a borehole
‘The Middle East Dream Team’, Mr Farid Mansour (Regional Technical Manager, Bauer), Dr Devon Mothersille (Managing Director, SBMA/ Geoserve Global Ltd), Mr Marco Vogel (Regional Director, Bauer) and Mr Bora Okumosoglu (Regional Design, Manager, Bauer)