FOUNDATIONS FOR SMALL SEAFLOOR INSTALLATIONS 



Technical Note N-1246 



3.1310-1 



by 



H. G. Herrmann 



ABSTRACT 



This report presents a procedure for the design of foundations 

 for small non-manrated and non-strategic seafloor installations. These 

 procedures are applicable only to installations with dimensions less 

 than 15 feet and submerged weight less than 4000 pounds . They do not 

 require a detailed analysis of the prospective site and are applicable 

 to all seafloor sites, except those located on slopes greater than 10° 

 and those in areas of rapid sediment accumulation, such as off mouths 

 of large rivers. The report includes analyses of vertical and lateral 

 loading and load resistance, tiedowns, use of materials, and foundation 

 emplacement. Several typical foundation types and special features 

 are described. Two example design problems are included to illustrate 

 the design procedures. 



Approved for public release; distribution unlimited, 



ii 



