Unclassified 



DOCUMENT CONTROL DATA ■ R g. D 



Naval Civil Engineering Laboratory 

 Port Hueneme, California 93043 



Unclassified 



DEEP-OCEAN PILE EMPLACEMENT SYSTEM: CONCEPT EVALUATION AND 

 PRELIMINARY DESIGN 



Final 



D. A. Raecke 



August 1973 



35 



YF38.535.004.01.002 



TN-1286 



Approved for public release; distribution unlimited. 



Naval Facilities Engineering 

 Coiranand 



A previous review of the state-of-the-art of seafloor pile 

 emplacement indicated that three types of mechanical systems could 

 be developed for deep-ocean seafloor pile emplacement. The systems 

 are: vibratory drivers, screw piles, and jack- in piles. Conceptu- 

 al designs for multiple-pile emplacement systems utilizing each of 

 these mechanical systems were developed and compared. The compar- 

 ison showed that screw-piles would be the most effective in meeting 

 the given operating requirements. A preliminary design for a pilot 

 model screw-pile emplacement system is presented. 



DD 



.1473 



Unclassified 



010 1. 807. euo 1 



