Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Little goes a long way


ONE OF THE smallest, most mobile rigs in Lankelma's fleet made its debut in the basement of of an office development in Blackfriars, central London.

The new mobile CPT rig carried out eight, 20m deep tests on the week-long contract in January in the maze-like basement of the building. Two tests were needed outside.

Its 700mm stroke, instead of the usual 1m, means the rig can work in low headroom. Its stroke can even be lowered to 500mm.

It is also lighter. 'It's easier to handle. A larger machine would have needed three men, ' explained Lankelma geotechnical engineer Darren Ward. 'This meant it was easier to manoeuvre in the tight basement.'

The rig can be spilt and moved on a trolley. It uses a hydraulic power pack that plugs into the mains, as diesel power could cause fume problems in confined spaces, Ward said. The rig can be mounted on anything from a jackup platform to rail rolling stock.

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions. Please note comments made online may also be published in the print edition of New Civil Engineer. Links may be included in your comments but HTML is not permitted.