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过去几十年来,沿青藏公路/铁路多年冻土区已经完成了数千个钻孔的钻探工作.经过仔细筛选,对其中的697个钻孔剖面的地下冰分布状况和其中9261个重量含水量的分布特征进行了分析.在水平方向上,依据地下冰的分布特征,把青藏公路/铁路沿线的多年冻土划分成少冰冻土、多冰冻土、富冰冻土、饱冰冻土和含土冰层5个含冰量类别,并详细统计了各类冻土沿公路所占里程.在垂向上,将每个钻孔划分出3个深度段:即多年冻土上限以下1m范围内、上限下深1～10m段及上限下10m以下段,统计了各深度地下冰储量.青藏公路沿线多年冻土的平均厚度为38.79m,平均含水量为17.19%,据此初步估算出青藏高原多年冻土区地下冰的总储量为9528km3.
Over the past decades, thousands of boreholes have been drilled along the permafrost of the Qinghai-Tibet Highway / Railway, and after careful screening, the distribution of underground ice in 697 borehole profiles and 9261 weight- The horizontal distribution of permafrost along the Qinghai-Tibet highway / railway is divided into four types: permafrost, multi-permafrost, rich-frozen soil, full-frozen soil and earth-covered ice Layer 5 ice content categories, and detailed statistics of various types of permafrost along the road mileage accounted for in the vertical direction, each hole is divided into three depths: the permafrost within 1m below the upper limit Depth of 1 ~ 10m section and the upper limit of 10m below the section, the statistics of the depth of underground ice reserves. Qinghai-Tibet Highway permafrost along the average thickness of 38.79m, the average moisture content of 17.19%, thus preliminary estimates of the Qinghai-Tibet Plateau permafrost The total underground ice reserves 9528km3.