Dr Devon Mothersille presented a paper entitled ‘Overcoming the challenges of grouting ultra-high capacity anchors dam in jointed quarzitic sandstone’ at the 5th International Grouting Conference, held between 9th-12th July 2017 in beautiful Honolulu, Hawaii. Over a four day period the well-attended conference provided three keynote lectures and technical sessions covering a broad spectrum of subjects including grouting case histories, drilling/grouting and deep mixing/ diaphragm walls.
Dr Mothersille during his presentation within the technical session on Drilling and Grouting
Following a special invitation from Ingerop’s senior management, Dr Devon Mothersille delivered a presentation to Directors from Ingerop (France), Ingerop (South Africa) and Geos (a subsidiary of Ingerop France).
This initiative was designed to further strengthen relationships and explore new markets for consultancy services with respect to ground anchor applications worldwide.
Several exciting possibilities were discussed included the delivery of major projects in Kenya, Democratic Republic of Congo and Mozambique.
Dr Devon Mothersille and Mr Neel Daya (CEO, Ingerop South Africa) meet at Ingerop headquarters in Paris, France
The work of the committee ISO/TC 182/WG3 continues with the successful evaluation of 171 comments on the draft European standard for the testing of grouted anchors ISO DIS 22477-5. In all some 325 comments were evaluated over two separate meetings, the first of which took place in London in early April 2017. The task of seeking resolution to the 325 comments was further complicated by the fact that there are three test types and three test methods associated with the test types. In addition, there are several member countries that adopt variations to the different test methods. Despite this, there is no question that the meetings in both London and, more recently, in Lisbon where successful.
On the basis of the evaluation of comments, the document will be amended and resubmitted to the Working Group for further assessment over the coming months.
Attendees at the ISO/TC 182/WG 3 meeting from left to right;
Mr Joao Pina (Expert, Portugal), Mr Tarmo Tarkkio (Expert, Finland), Mr Yves Legendre (Expert, France), ), Mr Ole Muller (Expert, Denmark), Ms Eva Dornecker (Expert, Germany, Mr Chris Irvin (Expert, UK), Dr Devon Mothersille (Expert and Chairman, UK), Mr Klaus, Dietz (Expert, Germany), Mr Julien Habert (Expert, France), Dr Mariana Carvalho (Expert, Portugal) and Mr Magnus Ruin (Expert, Switzerland).
Dr Devon Mothersille delivered a lecture entitled ‘An Introduction to High Capacity Anchors in Soils and Weak Rocks’ to the 38th Annual Short Course: Grouting Fundamentals & Current Practice, held at the University of Texas in Austin.
This forms part of an annual commitment to the short course and Dr Mothersille was honoured to share the stage with a host of high calibre international grouting experts. The subject matter was varied, covering many aspects of grouting technology, methods and applications in a variety of geological conditions.
Dr Mothersille prepares for the delivery of his lecture at the University of Texas
Dr Mothersille is introduced to the audience by Professor Scott Kieffer at the University of Texas, International Grouting Workshop
A dream team comprising Dr Donald Bruce, Dr Devon Mothersille and Mr John Wolfhope (BMW) have been engaged by The Centre for Energy Advancement through Technological Innovation (CEATI) to undertake a study of world dam anchor practice in a bid to produce a Best Practice Guidance Manual for North American dams. CEATI based in Montreal, Canada is an influential trade organisation with a specific remit to improve technology that can facilitate further development and maintenance of dams which form an essential feature of the national energy enhancement infrastructure.
Dr Donald Bruce (Geosystems), Dr Devon Mothersille and Mr John Wolfhope (Freese & Nichols) recently met in Austin, Texas to develop forward strategies for the effective delivery of the project. This successful meeting has confirmed that many months of hard work lie ahead but this will undoubtedly result in a landmark study that will tremendously benefit the dam anchor industry worldwide.
John Wolfhope, Donald Bruce and Devon Mothersille meet at Freese and Nichols offices in Austin, Texas
Senior Geotechnical design engineer from Chilean Foundation contractor Lancuyen, Mr Rafael Martinez, attended a specially organised two day ‘one-on-one’ seminar with Dr Devon Mothersille. This unusual initiative was requested by Lancuyen in order to accelerate their knowledge in ground anchor technology. During the intense two-day interactive knowledge sharing session, case histories were described which covered aspects of design, construction, testing and monitoring of ground anchors. New technologies such as AnchorTest were discussed and demonstrated together with detailed descriptions and evaluation of the Single Bore Multiple Anchor system. Lancuyen are currently considering the use of the SBMA system for a major slope stabilisation project in Chile and this was also discussed in detail.
Special anchor seminar took place in the beautiful surroundings of the Royal Over-Seas League in Mayfair, London, UK
Mr Rafael Martinez and Dr Devon Mothersille during the special one-on-one anchor seminar held at the Royal Over-Seas League at Mayfair in London, UK
Following the award of the contract to provide consultancy services and removable anchor technology on the Corniche Tower project in Abu Dhabi, preparations are underway for a series of anchor trials scheduled for June 2017. SBMA Ltd will use the services of experienced driller/grouter/anchor installer Mr David Hayes to supervise the initial tendon manufacture and installations for the trial anchors. The tendon components were provided by DECA s.r.l (www.decanet.it) and additional consultancy support by Geoserve Global Ltd (www.geoserve global.com).
Mr David Hayes and Dr Devon Mothersille discuss new developments with removable SBMA technology that will be implemented in Abu Dhabi