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Body temperature during treadmill running was studied in six dogs at seven different grades from 0–22 degrees of inclination. The replicate variability in the work rectal, skin and fur temperature was ±0.5℉, ±1.4℉ and ±1.3℉, respectively. At grades up to 12 degrees of inclination there is a prolonged steady state in the rectal temperature. At higher grades there is a progressive increase in rectal temperature with running time. Body surface temperatures show little affect at the lower grades. At higher work intensities there is an increase in skin and fur temperature. Maximum heat storage varied from 21.3–41.3 Cal. during short term exhaustive work. This type of calculation is discussed critically. The relationship between rate of rise in rectal temperature and maximum performance time was studied. Without regard to work load a product-moment correlation coefficient of +0.991 was found. Submitted on September 17, 1958

SUMMARYThis paper describes a design application of non-linear deformation analysis to a complex soil-structure-foundation interaction problem through use of a finite element analysis. The problem consists of a proposed renovation to an existing soil-founded U-frame lock structure consisting of construction of a densely reinforced soil berm adjacent to an existing lock wall. Major questions facing the designer involve reduction of the earth pressure on the lock wall, layout of the reinforcing in the soil berm, and collateral effects of berm construction on the U-frame lock structure. A non-linear deformation analysis played a central role in addressing all of these questions. Berm construction and four operational load cases were used to understand the performance of the reinforced berm and to discern interactions among the lock, the backfill, the foundation strata of the U-frame lock, the reinforced berm, and the foundation strata of the reinforced berm. Insight gained from the soil-structure-foundation interaction analyses led to an alteration to the proposed reinforcement layout to enhance the performance of the reinforced soil berm.