Dynamic Cone Penetrometer
- Portable equipment set for evaluating strength and density of soil, in situ.
The dynamic cone penetrometer uses a 15 lb. (6.8 kg) drive mass falling 20 in. (50.8 cm) that strikes the anvil to cause penetration of 1.5 in (3.8 cm) diameter cone (45 degree vertex angle) that has been seated in the bottom of a pre-augered hole.
- The blows required to drive the embedded cone a depth of 1 3/4″ have been correlated by others to N values derived from the
DCP sleeved drive hammer, 45 degree vertex angle cone with a 3.8 cm diameter cone, extensions.