Technical Report_: 
CONCEPTS FOR DRILLING AND EXCAVATING 
IN AND BELOW THE OCEAN BOTTOM 
May 1971 [oo 
ra 
| Woods Hoy) 
k 
Ole ¢ 
Sponsored by 
NAVAL FACILITIES ENGINEERING COMMAND 
NAVAL CIVIL ENGINEERING LABORATORY 
Port Hueneme, California 
Approved for public release; distribution unlimited. 
