. Concepts for drilling and excavating in and below the ocean bottom. Underwater drilling; Ocean bottom. side or end cutting auger with slurry removal of spoil Figure 48. Concept of mobile seafloor Figure 49. Concept of a fixed seafloor excavator. A total of eight concepts were identified in the early phase of the work; these were reduced to three in an early trade-off analysis. The three distinct concepts (Figure 52) are: (1) a frame which would require towing and sinking at the work site and which would be capable of very precise prov- ing over a limited area; (2) a rotary machin
. Concepts for drilling and excavating in and below the ocean bottom. Underwater drilling; Ocean bottom. side or end cutting auger with slurry removal of spoil Figure 48. Concept of mobile seafloor Figure 49. Concept of a fixed seafloor excavator. A total of eight concepts were identified in the early phase of the work; these were reduced to three in an early trade-off analysis. The three distinct concepts (Figure 52) are: (1) a frame which would require towing and sinking at the work site and which would be capable of very precise prov- ing over a limited area; (2) a rotary machine capable of similarly close-tolerance excavation, but having the added inconvenience of requiring a drilled-in pile and a specialized drilling support ship, of which there is only one; and (3) the concept selected for preliminary design and detailed analysis (right. Figure 52). 62. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : Naval Civil Engineering Laboratory
Size: 2209px × 1131px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
