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Technology
Assessment & Research (TA&R) Program
| Project
Number |
51 |
| Date of Summary |
December 31, 1986 |
| Subject |
Engineering Properties of Subsea
Permafrost |
| Performing Activity |
U.S. Army Corps of Engineers, Cold Regions Research and
Engineering Laboratory |
| Principal Investigator |
Mr. Edwin J. Chamberlain |
| Contracting Agency |
Minerals Management Service |
| Estimated Completion |
Complete |
| Description |
The objective was to assess the
engineering properties of subsea permafrost and their influence on bottom- founded
structures. Four basic areas of study are proposed:
(1) a study of the effect of freezing and thawing on the
salinity of subsea permafrost soils;
(2) a study of the strength properties of saline
permafrost;
(3) a study of the consolidation and permeability
characteristics of subsea permafrost; and
(4) a study of the effect of cyclic loading on the strength
of subsea permafrost.
|
| Progress |
Complete. All of the proposed
laboratory work is complete with the exception of analysis of the engineering properties
of cores from the Beaufort Sea. These cores were to be obtained by the U.S. Geological Survey, Marine Geology
Branch from a drill ship in 40 to 50 meters of water during the open water season of the
summer of 1983. However, ice conditions in the Beaufort Sea prevented the drill ship from
accessing the drill sites, therefore the cores are not available. When it was found that
cores would not be available, it was requested that the work study the seasonal freezing
processes in the Beaufort Sea. |
| Reports |
AA (6 pages)
 |
Chamberlain, E. J., Frost heave
of Saline Soils, presented at the Fourth International Permafrost Conference, Fairbanks,
Alaska, July 18-22, 1983. |
| AB (10 pages)
|
Chamberlain, E. J. and Sellmann,
P. V., Engineering Properties of Subsea Permafrost, Progress Report, U.S. Army Corps of
Engineers, Cold Regions Research and Engineering Laboratory, Hanover, New Hampshire,
October 1984. |
| AC (10 pages)
|
Chamberlain, E. J., Shear
Strength in the Zone of Freezing in Saline Soils, ASCF Conference Proceedings--Arctic '85,
San Francisco, California, March 25-27, 1985. |
| AD (6 pages)
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Chamberlain, E. J., Shear
Strength Anisotropy in Frozen Saline and Freshwater Soils, The Fourth International
Symposium on Ground Freezing, Sapporo, Japan, August 5-7, 1985. |
| AE (6 pages)
|
Chamberlain, E. J., Frost Heave
of Saline Soils, Permafrost: Fourth International Conference Proceedings, ISBN
0-309-03435-3, National Academy Press, Washington, D. C., 1983. |
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