Dando Drilling International now offers a Standard Penetration Test (SPT) calibration facility at its factory premises in Littlehampton, West Sussex.
SPT is the most frequently used method for measuring the relative density of granular deposits. Tests are carried out by dropping a 63.5kg weight onto a specially designed sample tube. The number of blows required to advance the sample tube every 150mm is then recorded and the data used to calculate a standard penetration resistance or “N-value”.
As the test results are often used to make high-stakes decisions such as foundation and piling placement for construction or civil engineering projects, it is imperative that the SPT testing equipment is properly calibrated to ensure accurate results are produced.
Dando’s test facilities are fully compliant to BS EN ISO 22476-3. The calibration equipment provides an accurate measurement of the energy imparted to the rods compared to the theoretical energy of the hammer and Dando provide customers with a signed certificate of calibration.
Dando can now offer calibration certificates on all new hammers and percussive rigs leaving their factory, as well as offering the calibration service to customers with existing SPT equipment.
Dando Drilling recently featured on an episode of the popular UK TV series Great British Railway Journeys.
Presenter Michael Portillo stopped off in Littlehampton to find out how Victorian engineers dug deep to defend the town’s residents from cholera and how Dando rigs are still providing safe, clean water around the world.
For those based in the UK, the full episode can be viewed on BBC Iplayer using the following link: www.bbc.co.uk/iplayer/episode/b06wj19y/great-british-railway-journeys-series-7-8-littlehampton-to-beaulieu Dando features 3m 40s into the programme.
Michael Portillo (left) with Dando Managing Director Martin Fitch-Roy (right)
Last December Dando Drilling and North American representative Viking West Engineered Products attended the NGWA Groundwater Expo in Las Vegas, USA.
With over 4,480-plus registrants from more than 30 different nations, Groundwater Expo is recognised as one of the world’s largest events for the water well drilling equipment industry.
Attending this show for the first time, Dando was delighted with the amount of interest shown in all of its products, from its range of compact, easy access machines to the larger heavy-duty rigs for drilling deep wells. Dando’s site investigation machines also attracted much attention, including the latest Dando Ibex slope drilling rig and Dando Terrier which was on display.
NGWA is the leading organisation for anyone affiliated with the groundwater industry. A nonprofit organisation, NGWA is composed of U.S. and international groundwater professionals — contractors, scientists and engineers, equipment manufacturers, and suppliers. Its purpose is to provide guidance regarding the responsible use of groundwater.
Dando has received photos and feedback from UK customer James and Milton of their Dando 3000 shell and auger rig conducting over water drilling for the installation of a new swing bridge in Lowestoft, Suffolk. The project required the customer to drill 6” diameter holes to 10 meters from the sea bed, as well as some deeper 45m holes drilled on land.
The Dando 3000 has since been superseded by the Dando 4000 Shell and Auger Rig, boasting new features including a higher pull capacity of 4000kg and a silent diesel engine pack. To view Dando’s full range of site investigation rigs please visit the Dando Geotechnical Rig page on our website.
Dando Drilling recently returned from Edinburgh, UK after attending the biannual European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE.)
On the theme of Geotechnical Engineering for Infrastructure and Development , conference attendees ranged from geotechnical contactors to trade associations and equipment manufacturers to university professors. The event allowed Dando to increase its exposure in front of a diverse audience as well as talk to existing customers, gaining feedback on it products as well as developments within the geotechnical market.
Dando was pleased with the amount of interest shown in its latest range of geotechnical rigs and equipment, with the Dando Ibex slope drilling rig and Dando Terrier gaining a lot of attention.
For information on other upcoming events that Dando is attending please visit: http://www.dando.co.uk/exhibitions
Dando Lightweight Terrier with Expanded Tracks
The versatile Dando Terrier site investigation rig is now available in a new lightweight version, constructed from high grade aluminium and designed using latest software.
The Dando Lightweight Terrier boasts a lower ground pressure for when working in sensitive, fragile terrains and also provides a wider range of logistic options. Its compact design allows easy access through tight, narrow passages and the optional expanded tracks provide increased stability when needed.
Visit the Dando Terrier product page for more information.
Dando Lightweight Terrier, with expanded tracks, in a UK customer’s company colours
Dando Lightweight Terrier customer training in Wales
Geotechnica 2015, the UK’s largest geotechnical conference and exhibition was held on 8th and 9th July at Warwickshire Exhibition Centre. It proved to be an excellent showcase for Dando’s new rigs—the Dando Multitec 4000, Lightweight Terrier and the Dando Ibex all of which attracted a good deal of interest. Dando Managing Director Martin Fitch-Roy was very pleased with the positive feedback from visitors about the unique functionality and flexibility of both rigs. The Dando Ibex particularly proved a talking point with the ability to efficiently and effectively tackle railway embankment work.
The conference topics were wide ranging including a series of presentations from leading procurers of geotechnical work including HS2 and Network Rail, in which they outlined their requirements and expectations from the geotechnical and drilling community, innovation as the way ahead in the geotechnical industry and updates to health and safety legislation.