roadbed work area 路基工作区
roadbed in reservoir area 库区路基
subsiding area under roadbed 路基下空区
roadbed of frost soil area 冻土地区路基
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。
In recent years the vacuum preloading method for treating soft foundation is often used in the construction of speedway roadbed of littoral and delta area.
真空堆载联合预压法处理软基近年来在沿海、三角洲地区的高速公路路基施工中经常出现。
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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