DEVICE FOR ROTARY DRILLING WITH A TUBE INTO A BOTTOM LOCATED UNDER WATER

摘要

Device (1) for rotary drilling with a tube (2) in a. bottom (3) located under water, characterized in that the device (1) comprises a frame (4) to be placed on the bottom (3), which frame (4) is provided with rotatable first engaging means (5) for clampingly engaging and rotating the tube (2) for the purpose of rotary drilling with the tube (2) into the bottom (3).