In Situ Site Investigation own a number of CPT rigs that can make bespoke applications for restricted sites and we have completed projects in many such areas, for example:

• – River embankments
• – Rail cuttings and cesses
• – Docks
• – Near shore (craned onto tug boats)
• – Basements
• – Bridge abutments
• – Marine jack ups
• – Urban areas

CPTs are ideal for restricted access sites because of the compact nature of the equipment. All of the CPT equipment can be stripped down, reduced in size and carried manually onto the site if access is limited. Furthermore, the electrically driven hydraulics used to push the cone into the ground ensures there are no exhaust fumes emitted from this type of testing making it more environmentally friendly as well as limiting noise pollution in built up areas.

Our Mini Rig, CPT003, is a small, tracked CPT rig weighing only 3.5 tonnes. It has hydraulically driven screw anchors which add additional reaction weight of up to 20 tonnes needed for deep penetration of the ground. The Mini Rig can also be mounted onto rail trailers or craned into restricted areas such as basements, marine jack ups and tug boats making it an ideal CPT rig for specialist sites needing quality site investigation both over water and on land. It can also track across the ground so can be used in areas of soft, rough terrain.

We have 3 excavator mounted CPT rigs which are ideal for work on rail sites, including the track bed or embankments, cuttings and areas of restricted access. They have also been utilised successfully for testing down the slope of a river bed. Each of these rigs weighs 3.5 tonnes and is attached to an excavator or RRV when completing CPTs, enabling it to test safely on slopes.

Our mini CPT track mounted rig is a fully hydraulic machine which runs on a petrol engine. The compact size and lightweight nature of the rig make it extremely manoeuvrable and able to access sites of a restricted nature such as marine jack ups, rail sites or indoor locations e.g. basements, warehouses etc. The rig is equipped with an automatic self-anchoring system, which quickly anchors the rig to the ground using 100 mm diameter continuous spiral screw anchors or larger diameter single spiral anchors. The rig is transported to and from site in the back of a transit van or light truck.

Our hand portable CPT rams are ideal for testing in warehouses, basements and areas where space is confined and access is restricted. The rams have their own electric, hydraulic power pack which is also hand portable. These rams can be used to complete two to four locations in a day because they need bolting to the floor in order to produce the required reaction force for testing.