The continual freezing and expanding, melting and submerging and melting and sinking of roadbed are the main problem on the building and maintaining of road in frozen earth area.
路基周而复始的冻胀、融沉和热融滑塌是冻土地区道路建设和维护所面临的主要难题。
The result of analysis indicates that it is a superior solution for solving the problem of the sinking frozen earth railway roadbed by applying the heat pipe technology.
分析结果表明：采用热管技术对解决冻土路基问题是一种很好的方案。
The result of analysis indicates that it is a superior solution for solving the problem of the sinking frozen earth railway roadbed by applying the heat pipe technology.
分析结果表明：采用热管技术对解决冻土路基问题是一种很好的方案。
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