use of Figure 6 and may be calculated from Equation 1. A procedure for 

 obtaining the parameters of Equation 1 is provided in this report, al- 

 though, in some cases, the performance of a consolidation test is 

 required in order to follow the procedure. For most typical, soft sea- 

 floor soils, the parameters provided in Table VII for the 1200-foot site 

 may be used directly. 



2. These procedures may not be used with samples containing a signifi- 

 cant amount of gas. In questionable cases, the extent of gas expansion 

 occurring during sampling should be determined by measuring either the 

 degree of saturation or acoustic transmissivity . 



3. The following core handling procedures are recommended: 



a. Cut cores into relatively short (1 to 2-foot) sections shortly 

 after they are taken. 



b. Seal sample sections carefully by tightly taping covers to ends 

 and dipping in a non-brittle, impervious wax (for example, a 

 paraffin-silicon wax mixture) . 



c. Place samples under refrigeration at near seafloor temperatures 

 soon after they are taken; preferably on shipboard. Store 

 horizontally. 



d. Prevent vibrations and jolting. 



e. Perform vane shear and residual pore pressure tests promptly, 

 allowing only a short storage period. 



f. Perform short-term tests at the highest temperature to which 

 the samples have ever been subjected. 



ACKNOWLEDGMENTS 



The author acknowledges the efforts of Mr. D. G. True of the Naval 

 Civil Engineering Laboratory in planning and directing the field opera- 

 tions of this project, in developing the testing equipment and procedures, 

 and in assisting in the data analysis. The efforts of Mr. F. 0. Lehnhardt 

 of the Naval Civil Engineering Laboratory in the performance of the 

 laboratory testing program are also acknowledged. 



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