天气预报 > 其他 > 路基路面分为哪几层
路基路面分为哪几层
更新时间: 2020-09-25 00:00:00  

填方路基一般自上而下分为上路床、下路床、上路堤、下路堤四层;

路面根据路基高度、气候区域等不同,具体设计层数不是一定的,但基本上自下而上有垫层、基层、面层三部分。

关键词: 路基 路面 分为

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