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- W2008416900 abstract "Year-round studies of the geothermal impacts of road construction in a warm (–1 to –2°C) permafrost area were undertaken during 1954–1962 at six road sections across the Richardson and Glenn Highways, in the vicinity of Glennallen, Alaska. The most extensive studies were at Richardson Highway Mile 130 where nine 6.1-m vertical thermistor cables were installed beneath the newly constructed road, beneath a 40-year-old roadway, and in undisturbed areas. The cables, installed beneath the centerlines, shoulders, and the adjacent ditches of the highways, as well as beneath undisturbed areas, provided weekly temperature measurements at 13 depths. A tenth cable, with thermistors at 0.3-m spacing, was installed horizontally at a depth of 1.2-m across the new road. The mean annual ground temperatures in the ice-rich lacustrine silty clays in the Glennallen area appeared to approximate –1.2°C, about 1.8°C warmer than the mean annual air temperatures. The seasonal amplitudes of temperature changes were greatest beneath the centerline of the new road; increasing the depth of seasonal thaw from 1.87 m, versus about 0.7 m in the undisturbed areas, in 1954 to 3.0 m in 1957. The old road centerline and ditch then had similar depths of thaw, about 4.9 m, after almost 40 years of light usage. This suggests that differential settlement in the new roadway would continue until at least an additional 1.8-m-depth of thaw had been completed. While the permafrost at the 6.1-m depth beneath the centerline of the new road was warming, the permafrost at the same depth beneath the old, abandoned road was cooling slightly during the study period." @default.
- W2008416900 created "2016-06-24" @default.
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- W2008416900 date "2002-05-08" @default.
- W2008416900 modified "2023-09-23" @default.
- W2008416900 title "Ground Temperatures across the Old and New Roads at Mile 130, Richardson Highway during 1954–62" @default.
- W2008416900 cites W1590140373 @default.
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- W2008416900 doi "https://doi.org/10.1061/40621(254)62" @default.
- W2008416900 hasPublicationYear "2002" @default.
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