Theo van Velzen Takes over Tjaden

December 23th, 2011

As per today Theo van Velzen B.V. from Alkmaar, Holland has taken over Tjaden Engineering Bureau. After the bankruptcy of the former owner of Tjaden, Theo van Velzen grabbed the opportunity and incorporated Tjaden’s geomechanical skills and knowledgeable team of geotechnicians and operators.

Gouda-Geo congratulates Arjen Verhoeven and his crew with this change and wishes them best of luck in this new constellation.

Piezocone Dissipation test Water level meter CPT crawler CPT Electric cones Seismic CPT Magnetometer Gouda Jacket cone Soil sampler Dynamic penetrometer Cone Penetration Testing Piezometer CPTU Inclinometer
CPT truck Crawler-Truck Begemann cone Vane tester