Dynamic cone penetration device

G - Physics – 01 – N

Patent

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Details

G01N 9/00 (2006.01) G01N 3/48 (2006.01) E02D 1/02 (2006.01) G01N 3/00 (2006.01) G01N 33/24 (2006.01)

Patent

CA 2198290

- 9 - A dynamic cone penetration device for determining denseness of soil has reduced friction to provide more accurate testing. The device comprises a cone rod having a soil penetrating cone at one end and an anvil at the other end. The cone has a larger diameter than the cone rod, and the anvil has a striking surface for striking with a predetermined force. A rotation system containing a motor rotates the cone rod at a sufficient speed to reduce friction between the cone rod and the soil as the striking surface is struck.

- 9 - Pénétromètre dynamique à pointe conique utilisé pour déterminer la densité du sol possédant un frottement réduit afin de permettre la réalisation d'essais plus précis. Le dispositif comprend, à une extrémité, une tige à pointe conique dont la pointe conique s'enfonce dans le sol, et à l'autre, une enclume. La pointe conique a un diamètre plus grand que sa tige, et l'enclume a une surface de frappe permettant d'utiliser une force prédéterminée. Un système de rotation contenant un moteur fait tourner la tige à pointe conique à une vitesse suffisamment élevée pour diminuer le frottement entre la tige à pointe conique et le sol lorsqu'est heurtée la surface de frappe.

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