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来自维基百科，自由的百科全书
路堤（英语：Embankment），香港稱「路壆」，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]
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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]
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