多年冻土地区铁路工程施工技术_碧森尤信_建筑施工_建筑中文网 关键词： 多年冻土 铁路 施工技术 [gap=420]Keywords: Permafrost Roadbed; Railway ; Construction Technology
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After asphalt pavement having been constructed in permafrost regions, permafrost thermal regime and permafrost table under roadbed will undergo a change.
多年冻土区修筑沥青路面后，引起了路基下多年冻土上限、多年冻土热状态等变化。
In this paper, the method of 2-D finite element analysis was conducted to simulate the thermal state of the roadbed with insulations on permafrost.
本文运用有限元分析方法，对多年冻土区含保温夹层的路基温度场进行了数值模拟。
Qinghai-Tibetan Railway roadbed being building will go through large area of the high-temperature and ice-rich permafrost, so the problem of roadbed stability will be an austerity challenge.
建设中的青藏铁路将穿越大片高温、富冰多年冻土地段，因此面临严峻的路基稳定问题。
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