INDUSTRY NEWS
The Boys Are Back in Town… Jenkins Marine Secure Poole Quay
Multi Role Workboat Stour with 50t lattice boom crawler
Back in April 2019 Jenkins Marine was called to complete emergency repairs at a section of Poole Quay. Following emergency piling works to stabilise the failed quay wall at a residential/marina development, further detailed design and engineering works have been completed to produce a design for a more permanent repair.
Workboat ‘Avon’ was deployed again to complete the initial piling
work to install 20, 15m long and 508mm outside diameter tubular steel piles on site. The piles were loaded from Jenkins Marine’s quay in Poole into 32m long hopper barge ‘Hurst‘ to optimise the efficiency of the piling operation; enabling the piling barge to pick up piles as needed without having to leave site and load more piles each day.
Piling progressed well on site using a 4.5t resonance free variable moment vibratory piling hammer. Unfortunately, the hard clay ground
conditions meant that the piles hit refusal before they could achieve full penetration. After further planning and consultation, the decision was made to try a larger piling hammer. A much larger 10t Vibro hammer was sourced and delivered without delay, but a larger crane was required to handle it… Multi-role workboat ‘STOUR‘ was mobilised with Jenkins’ 50t lattice boom crawler crane and successfully drove the piles to the design depth, much to the client’s satisfaction, and not without a lot of vibration!
The piles were driven against custom made steel brackets bolted to the concrete wall. The Jenkins Marine team then welded the new piles to the brackets, and capped the piles. Works are due to continue with the design and installation of a further section of sheet pile wall on site, followed by the replacement of the marina pontoons.
q +44 (0)1202 668558 E
office@jenkinsmarine.co.uk H
www.jenkinsmarine.co.uk
Emergency Piling Poole
Hurst Hopper Barge
14
www.dockyard-mag.com August 2019
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
