公路路基施工规范中规定.上路床0~0.80米,高速及一级公路,96区;二级95区;三级四级,94区.零填及挖方,0~0.80米,高速及一级,96区;二级,95区;三级四级,0~0.30,94区.上路堤,0.80~1.50,高速一级二级,94区;三四级,93区.下路堤,>

1.50米,高速一级,93区;二级92区,三四级,90区.