Geocryological Conditions of the Railway Bridge Construction Site, South Yamal Peninsula (Western Siberia, Russia)

机译：南亚马尔半岛（俄罗斯西伯利亚）铁路桥梁施工现场的大地地质条件

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A projected railway bridge across the Shchuch'ya (Pike) River is located in the south of the Yamal Peninsula (67°29'N, 67°26'E) in the zone of continuous permafrost about 120-150 m thick in river valleys. Permafrost temperature averages out at -0.2 to -0.3℃ on the right bank formed of high flood plane alluvial deposits. On the left bank formed of Late Pleistocene lake-shore-alluvial deposits, the ground temperature is -3.0℃ at the distance of 78 meters from the river. Ground temperature on the left bank has increased on the average by 0.8℃ for the last 20 years while the air temperature increased by 1.2℃ for the last 50 years in the study area. The ground temperature on the right bank hasn't changed for the last 20 years apparently because of heat-insulating effect of the land fill which is by 2 to 2.5 m thicker on the right bank than on the left one.

机译：横跨Shchuch'ya（派克）河的预计铁路桥梁位于亚马尔半岛（67°29'N，67°26'E）的南部，在河谷中约120-150 m厚的永冻层中。在由高洪水平面冲积物形成的右岸，多年冻土的平均温度为-0.2至-0.3℃。在晚更新世湖岸冲积物形成的左岸，距河78米处的地温为-3.0℃。在过去的20年中，左岸的地温平均上升了0.8℃，而在过去的50年中，气温上升了1.2℃。右岸的地温在过去20年中一直没有变化，这显然是由于填埋场的隔热效果所致。右岸的地热比左岸厚2至2.5 m。

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《Cold regions engineering 2009 : Cold regions impact on research, design, and construction》|2009年|P.1-7|共7页
会议地点 Duluth MN(US)
作者
S. N. Titkov; V. I. Grebenets;
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Geological Research Institute for Construction, 18, Okruzhnoi pr., Moscow, 105 187, Russia;

rnMoscow State University, Faculty of Geography, Department of Cryolithology and Glaciology, Moscow, 119 234, Russia;

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正文语种 eng
中图分类冰冻与严寒地区筑路;
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Geocryological Conditions of the Railway Bridge Construction Site, South Yamal Peninsula (Western Siberia, Russia)

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