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既有铁路牙林线多年冻土区试验工程是为研究青藏线多年冻土修建的,用于整治大兴安岭多年冻土路基病害。热棒作为一种主动保护多年冻土的有效措施,在多年冻土的工程实践中得到了广泛的应用。文章仅就热棒的工作状况进行初步分析,虽然观测时间较短,但目前数据显示,该措施对降低基底地温,保护冻土效果显著,可在多年冻土区应用。
The existing experimental test of the permafrost zone of the railway Yalin line is for the study of permafrost in the Qinghai-Tibet line and is used to treat the permafrost embankment diseases in the Daxinganling. As an effective measure to proactively protect permafrost, hot rod has been widely used in engineering practice of permafrost. Although the observation time is short, the present data show that this measure has obvious effect on reducing ground temperature and protecting frozen soil and can be applied in permafrost regions.