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首页> 外文会议>Cold regions engineering 2009 : Cold regions impact on research, design, and construction >Experimentation of several mitigation methods in Tasiujaq Airport to minimize the effects caused by the melting of permafrost
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Experimentation of several mitigation methods in Tasiujaq Airport to minimize the effects caused by the melting of permafrost

机译：在Tasiujaq机场进行几种缓解方法的试验，以最大程度地减少永久冻土融化造成的影响

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摘要

Since the beginning of the 1990s an important increase in the mean annual air temperatures has been recorded in Nunavik, Quebec, Canada. This has lead to the degradation of permafrost, which is threatening the stability of airport and road embankments in the region. In the summer of 2007 a test-site was established at Tasiujaq Airport to study the effect of three different mitigations methods: heat drain, air convection embankment, and gentle slope (8:1). The methods were constructed in the shoulder of the runway embankment, each method over a distance of 50 m. In each section thermistors were installed to study the annual variations of the thermal regime inside the different embankments. After one year of monitoring, interesting cooling trends have been observed in the different test-sections and a substantially reduced maximum thaw depth have been registered during the thawing season.
机译：自1990年代初以来，加拿大魁北克省努纳维克（Nunavik）的年平均气温出现了重要增长。这导致了永久冻土的退化，从而威胁了该地区机场和道路堤防的稳定性。 2007年夏天，在Tasiujaq机场建立了一个试验场，以研究三种不同的缓解方法的效果：散热，空气对流路堤和缓坡（8：1）。这些方法是在跑道路堤的肩膀上建造的，每种方法的距离均为50 m。在每个部分中都安装了热敏电阻，以研究不同路堤内部热状况的年度变化。经过一年的监测，在不同的测试区域观察到了有趣的冷却趋势，并且在融化季节记录到最大解冻深度大大降低。

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