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Trench Control Installs 32m Sheet Piles on Waterford Quay
NAAS, IRELAND, (January 19th, 2011) – Trench Control, the leading piling contractor and supplier of ground support equipment for hire, was selected to install in excess of 140 sheet piles on Merchant Quay in Waterford City. Some of the sheet piles were in excess of 32m long and the work was part of the ongoing flood alleviation works in Waterford.
As stated by Gavin O’Donovan, RPS Consulting;
“Trench Control’s expertise in sheet pile design was required to provide an economical solution to repair the section of quay wall on difficult ground conditions consisting of almost 30m of silt. They also had the equipment and on-site expertise to complete the work in time and within the agreed budget. As employer’s representative for the scheme, RPS Consulting Engineers, were very satisfied with their work.”
The Project
Niall Barry & Co are completing the final stage of Phase 1 of the flood alleviation works, as awarded by the local authority. Along the final stretch of Quay wall, movement in part of the car park on Merchant’s Quay was noted and the need to shore up the quay wall to avoid further movement was determined.
The contract required the design and installation abilities of Trench Control. With the largest piling rigs in Ireland and a design team with many decades of experience, only Trench Control could master this unique project.
In conjunction with RPS consulting engineers, Trench Control designed a solid 18m deep sheet pile wall along a 87m stretch of the quay. This design was accepted and the contract awarded. However, once on site, it was realised that ground conditions were different from the initial reports and a new design was needed.
Superior Design Experience
To solve the issue, Trench Control requested several boreholes on site and determined a final depth of 32m in some areas. These longer depths required a re-design and also the onsite splicing of sheet piles to meet the new challenge.
The final design called for a total of 180 sheet piles, with 40% of these to be 32m in depth. The sheet pile wall would also require a series of tie-back anchors to dead-men using a gravity system to hold them in place. With Trench Controls’ mix of design experience and onsite contracting experience, this challenge was met to the requirements of all parties.
Successful Completion
The project proceeded after the new design was approved and Trench Control completed the installation as per programme and to the satisfaction of both the Local Authority and the main contractor, Niall Barry & Co.
Trench Control
Trench Control is a leading player in the fields of Piling, Anchoring and Trench Support Equipment. In business since 1980 for all Excavation requirements, Trench Control moved to provide sheet piling contracting solutions to the industry in the late 1990’s and then added the ability to provide concrete CFA Secant & Contiguous Piling and Anchoring to their portfolio.
Since that time we have expanded our range of products and services greatly, to offer what we believe to be a comprehensive package of solutions to the construction industry.
Our team is built around a solid base of engineering experience. With geotechnical engineers, who have a combined 80 years of experience in their field, we can justifiably claim to have the right solution to your ground support problem. Visit http://www.trenchcontrol.ie/ for product information.
For Further Information Contact
Colm Smyth, Group Marketing Manager, Trench Control Tel: +353 (0)86 3603460 or email:
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