青藏高原多年冻土顶板温度和温度位移预报模型的应用_stmopen 关键词】: 温度位移 多年冻土顶板温度 预报 [gap=828]Keywords】: thermal offset,permafrost table temperature,forecast
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The closed ballast layer can raise permafrost table, decrease annual mean ground temperature below the ballast layer, and protect the permafrost effectively.
封闭碎石道碴层可以提升冻土上限，降低多年冻土温度，对下部多年冻土起到很好的保护作用。
The rising of permafrost table should be attributed to an obvious decrease in fluctuation of temperature at the depth of permafrost table due to the thermal resistance effect of high embankment.
多年冻土上限的抬升主要是由于高路基的热阻效应导致上限附近土层温度变幅急剧减小而形成的。
Considering the effect on permafrost table, there is a kind of dynamic equivalence to some degree among pavement types, external temperature and embankment heights.
从对基底冻土上限影响的角度来看，路面类型、外部气温与路基高度三者间存在一定的动态等效关系。
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