RECOMMENDATIONS 



Results of this study suggest several areas for additional effort. 



1 . Efforts should be made to draw attention to foundation engineering 

 principles which have been determined for the seafloor (see, for example, 

 Hironaka and Hoffman, 1 970; or Herrmann, 1971 ) so that these can be 

 utilized in all seafloor foundation designs. 



2. Foundation performance monitoring should be increased. Devices such 



as the Foundation Performance Monitoring System should be employed when- 

 ever possible; however, less sophisticated techniques (such as photographs or 

 diver observations) also provide valuable information and should be utilized 

 when the mission of the installation cannot justify specialized monitoring 

 equipment. 



3. Efforts should continue to develop and improve guidelines for seafloor 

 foundation design. Particular attention should be given to the deep ocean, 

 because costs are much higher in this area. These efforts should include 

 in-situ sampling and testing, soil analysis, and development of the proper 

 analytical models of soil behavior required for the foundation design pro- 

 cess. 



4. New concepts for seafloor foundations and their emplacement should be 

 developed. 



5. The effort to collect, analyze, and summarize case studies of seafloor 

 foundation performance should continue. 



ACKNOWLEDGMENT 



The cooperation and assistance of numerous Navy activities, federal 

 agencies, private corporations, and individuals are gratefully acknowledged; 

 without such cooperation, a summary such as this would not be possible. 



REFERENCES 



AC Electronics-Defense Research Laboratories, General Motors Corporation 

 (1968). Report No. S68-07: Santa Cruz acoustic range facility (SCARF). 

 Goleta, Calif., July 1968. 



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