Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



REPORT DOCUMENTATION PAGE 



I. REPORT I 



TN-1438 



2. GOVT ACCESSION NO 



I DN 144023 



RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



DOSIST II - AN INVESTIGATION OF THE IN-PLACE 

 STRENGTH BEHAVIOR OF MARINE SEDIMENTS 



5. TYPE OF REPORT & PERIOD COVERED 



Not final; Jul 1974 -Jul 1975 



6 PERFORMING ORG. REPORT NUMBER 



7. AUTHORfs 



H. J. Lee 



CONTRACT OR GF 



9. PERFORMING ( 



•ID ADDRESS 



CIVIL ENGINEERING LABORATORY 

 Naval Construction Battalion Center 

 Port Hueneme, California 93043 



62759N; 



YF52. 556.999.01. 101 



CONTROLLING OFFICE I 



Naval Facilities Engineering Command 

 Alexandria, Virginia 22332 



12. REPORT DATE 



June 1976 



13, NUMBER OF [ 



M- MONITORING AGENCY NAME a AD0RESS(7( differ, 



15. SECURITY CLASS, (ot thi: 



Unclassified 



DISTRIBUTION STATEMENT (o 



Approved for public release; distribution unlimited. 



17. DISTRIBUTION STATEMENT (at Ihe 



Block 20, it different from Report) 



SUPPLEMEN 



<EY WORDS (Co. 



Soil testing, corers, sediment cores, deep-ocean sediments, vane shear tests, soil strength 

 profiles. 



ABSTRACT (Continue on reverse side It necessary end identity by block number) 



DOSIST II (Deep Ocean Sampling and In-Situ Testing) was a cruise in the Western 

 North Atlantic Ocean conducted to evaluate the in-place engineering behavior of several 

 typical deep ocean sediments. In-place vane shear tests were performed, and sediment 

 cores (gravity, piston, and box) were taken. Laboratory tests were conducted on the cored 

 samples to classify the sediments and to determine which testing procedure best reproduces 

 the measured in-place strength. This was found to be consolidated-undrained triaxial 



DD | JAN 73 1473 EDITION OF 1 NOV 65 IS OBSOLETE 



MBL/WHOI 



Unclassified 



Continued 



SECURITY CLASSIFICATION OF THIS PAGE (When Da 



0301 004020b 1 



