路堤

路堤图示
废弃的西萨默塞特郡矿山铁路的路堤。

路堤，是与“路堑”相对，指公路或铁路、运河建在筑起的高堤上，以避免线路水平面随地形改变。[1]

路堤通常用防水的、不透气、非多孔的材料建设，以避免含水、透水。[2]


参考文献
  1. Scott, J., Loveridge, F., & O'Brien, A. S. (2007). of climate and vegetation on railway embankments.
  2. Federal Highway Administration Design Manual: Deep Mixing for Embankment and Foundation Support
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