Unclassified 



Socuritv Classificali. 



DOCUMENT CONTROL DATA -R&D 



Naval Civil Engineering Laboratory 

 Port Hueneme, California 93043 



Unclassified 



INVESTIGATION OF THE SEAFLOOR PRECONSOLIDATING FOUNDATION CONCEPT 



4. DESCRIPTIVE NOTES (Type of report and inclusive dales) 



Final; August 1971-August 1972 



liddlo initial, la 



P. J. Valent, D. A. Raecke, and H. G. Herrmann 



May 1973 



25 



YF38.535.002.01.005 



TN-1276 



REPORT NO(S) (Any other tiutnbera that may be aasign 



Approved for public release; distribution unlimited. 



Naval Facilities Engineering 

 Command 



The report describes the performance of submerged model pre- 

 consolidating footings. The preconsolidation concept applied to 

 seafloor footings can reduce the subsequent structure settlement by 

 80 to 95 percent, double the vertical load capacity, and it may 

 double the lateral load capacity. Projected energy requirements of 

 the pump system are compatible with the existing state-of-the-art. 

 The concept will be useful for supporting sensitive and/or heavy 

 structures on soft seafloor sediments. 



DD 



J473 



Unclassified 



S/N 0101.607-6801 



