The district hydrogeology conditions along the routes of a road project are different,therefore in order to use local materials,many kinds of materials were adopted for roadbed filling.

• 某道路工程路线经过的区域水文地质情况不同,为了就地取材,路基填筑采用了多种材料,同时由于路线地形差别较大,挖填路基的形状也不同。