A couple of months ago we were contacted by Dutch geotechnical specialist Ortageo B.V. to develop for them a lightweight 200 kN CPT penetrometer set specifically for indoor CPTu testing.
The set composes of 3 elements:
- A lightweight and easy to manoeuvre CPT penetrometer pusher generating 200 kN reaction force and featuring an automatic push-and-pull clamp integrated in the connecting yoke between the 2 cylinders.
- A compact electric-hydraulic power-pack
- A trolley with foldable trays for the storage of max. 40 CPT tubes. The trays are made of stainless steel and designed such that the CPT cable can be used unobstructedly.This CPT penetrometer set allows for high production, since CPT tubes of 1000 mm length can be used.
In the picture you can see CPT specialist Sam Stins doing a piezocone CPTu test inside a former store. The pusher is bolted to the floor using so-called chemical anchors and the cone is pushed through a earlier drilled hole.