Unclassified 



DOCUMENT CONTROL DATA -R&D 



Naval Civil Engineering Laboratory- 

 Port Hueneme , California 93041 



Unclassified 



SPECIALIZED ANCHORS FOR THE DEEP SEA - PROGRESS SUMMARY 



1. DESCRrPTlVE NOTES (Type ot report and inclusive date*) 



February 1968 - June 1970 



J. E. Smith, R. M. Beard, and R. J. Taylor 



November 1970 



64 



25 



YF 38.535.004.01.001 



TN-1133 



This document has been approved for public release and sale; its 

 distribution is unlimited. 



Naval Facilities Engineering 

 Command 



Five anchor design concepts have been explored in conjunction 

 with the program to develop an improved deep sea mooring capability, 

 The knowledge gained from study of these anchor concepts, "Free- 

 fall", (2) "Pulse-jet", (3) "Explosive", (4) "Padlock", and 

 (5) "Vibratory" are summarized in this report. 



The vibratory anchor is currently the center of the deep sea 

 anchoring development effort. A first generation design has 

 demonstrated the concept to be feasible. Tests have shown that 

 improvements are required for the vibratory anchor. An analytical 

 study has been performed to assist in optimizing a second generatior 

 design. Improvements incorporated in the second generation design 

 will be based on information from tests of the first design and the 

 analytical study. The improved design will be tested in a range of 

 seafloor sediment types and water depths to rate its capabilities 

 and establish its reliability. 



DD 



»1473 



S/N 0101.807-680 1 



Unclassified 



Security Classific 



