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The increasing economic and military importance of the American arctic regions makes them of ever-increasing interest to the engineering profession. The prevalence of permafrost in these regions indicates that a great percentage of all civil engineering works will be founded on soils in this state. Unfortunately a great many of the permafrost materials have extremely undesirable properties. Exploration of foundation conditions therefore becomes of paramount importance; it is true, however, that the difficulties attendant upon securing such data are often so great that little or no information becomes available.
It is the purpose of this paper to discuss briefly some of the problems posed in making foundation explorations in remote arctic regions and, based upon personal experience, to outline some methods for their solution. Preliminary explorations only are dealt with here because they are considered not only the most critical, but generally are the only type finally available to the engineer. The discussion furthermore is confined to regions in which permafrost predominates since it is here that the greatest problems are generally encountered.
Nees, Louis A.
Air Installations Div., AMC, Wright-Patterson Field, Dayton, Ohio.
Morgan Johnson, A.
Wayne University, Detroit, Mich.