Search Results: 'Vermeer'

UCT 2018
24 January, 2018
T&T’s guide to UCT and a round up of product and business news from this year’s exhibitors

Cavern configuration
26 December, 2017
The largest tunnelled excavation in Los Angeles, part of the Regional Connector Transit Corridor, will be constructed at relatively shallow depth below existing infrastructure including significant utilities and historic buildings in a seismically active area. Carlos Herranz, Zsolt Horvath, Justin Liandes and Derek Penrice of Mott MacDonald describe the approaches taken to mitigate this design and construction risk

Dubai waterworks
25 November, 2016
AL Naboodah has been engaged to divert utilities in advance of the Dubai Water Canalproject. the job called for microtunnelling, as well as HDD close to piling work

Bend and breakthrough
13 July, 2016
A short drive in Oregon could revolutionize how small bores are advanced through congested ground. Jon Young looks at how removing the driver from SBUs could cuts costs and make impossible projects routine

First trains through delft
24 May, 2016
The construction of a four-track railway tunnel in Delft in the Netherlands has reached an important milestone. From March 2015, trains have been running on two tracks through the tunnel and station. The 2.3km-long tunnel runs through the historical city center and replaces a fly-over, which caused major nuisance due to noise and vibrations. This article addresses a brief history and description of the project, some main design risks (safety, vibrations, pressure waves, building damage control), the geological and geohydrological conditions and the construction methods

Bend and Breakthrough
31 December, 2015
A short drive in Oregon could revolutionise how small bores are advanced through congested ground. Jon Young looks at how removing the driver from SBUs could cuts costs and make impossible projects routine.

HDD Drivers
30 June, 2015
The current market for horizontal directional drilling (HDD) may be reflecting economic and political issues around the world but there’s no doubt that underlying demand remains strong. Keren Fallwell reports.

Extreme Immersion Design
04 December, 2013
The Second Coen Tunnel must survive severe loadings during the usage phase: 16m of water in the middle of the North Sea Canal and 8m of soil at the banks. The determining design scenarios were the sea transport of two days and possible impact by a sunken ship. This article goes into the general immersed tube principle and the construction and transport phases. The usage phase will be covered in the next article, to be published in an upcoming issue of Tunnels

Deep drives
18 July, 2012
The central element of the North-South line, in engineering terms and literally on the route line, is the bored tunnel section. Adrian Greeman visits the project

‘No-Dig’ techniques continue to advance
12 February, 2010
The push for greener technology and less intrusive utilities repairs are driving the need for development in trenchless techniques. Ian Clarke looks at how the industy is responding to this demand

Asset management equipment and methods
04 September, 2007
Technical journalist Ian Clarke rounds up new technologies to assist the asset management, rehabilitation, and replacement sectors of the No-Dig sector

Trenchless technologies and techniques
26 July, 2007
Ian Clarke reviews some of the more significant trenchless technology product launches and new installation methods from the past 18 months

Variable shield with added intelligence
01 December, 2001

Small Bore and Pipe Jacking
20 August, 2001