Sites in high risk areas with soft soil may be underlain by unexploded WWII aerial‐delivered bombs of 50kg and larger at depths much greater than the maximum detection depths achievable from surface. The ferrous nature of most such UXO’s makes a magnetometer the most appropriate instrument for detection in boreholes or CPT (cone penetrating testing).
CPT uses a cylindrical cone, pushed vertically or under an angle from a rig into the ground at a constant rate of 15mm per second. During penetration, measurements are made of the cone resistance and inclination.
While the cone is hydraulic pressed into the soil, a senior UXO-expert is interpreting the data in real-time.
For further information about our work method, please visit our website or contact Mr. Dirk van de Vleuten at +31 (0)73 543 10 10 or at email@example.com