GBT51224-2017······1
1 总则······10
2 术语和符号······11
2.1 术语······11
2.2 符号······11
3 基本规定······13
3.1 道路分级······13
3.2 设计车辆······13
3.3 设计速度······14
3.4 道路建筑限界······15
3.5 防灾标准······16
4 横断面······17
4.1 一般规定······17
4.2 横断面布置······17
4.3 横断面组成及宽度······18
4.4 路拱横坡······19
5 平面、纵断面及道路交叉······20
5.1 一般规定······20
5.2 平面设计······20
5.3 纵断面设计······23
5.4 道路交叉······24
6 路基工程······27
6.1 一般规定······27
6.2 路基设计······27
6.3 路基施工与质量验收······28
6.4 路基排水······29
7 路面工程······31
7.1 一般规定······31
7.2 基层、底基层和垫层······31
7.3 沥青路面······34
7.4 水泥混凝土路面······35
7.5 天然石材路面······36
7.6 预制砌块路面······39
7.7 砂石路面······41
8 桥涵······42
8.1 一般规定······42
8.2 桥涵设计······44
9 附属设施······46
9.1 照明······46
9.2 管线······46
9.3 交通安全设施······47
9.4 绿化······47
本规范用词说明······49
引用标准名录······50
附:条文说明······52
l 总则······55
3 基本规定······56
3.1 道路分级······56
3.2 设计车辆······56
3.3 设计速度······57
3.4 道路建筑限界······57
3.5 防灾标准······58
4 横断面······59
4.1 一般规定······59
4.2 横断面布置······59
4.3 横断面组成及宽度······59
5 平面、纵断面及道路交叉······64
5.1 一般规定······64
5.2 平面设计······64
5.3 纵断面设计······67
5.4 道路交叉······69
6 路基工程······70
6.2 路基设计······70
6.3 路基施工与质量验收······70
6.4 路基排水······70
7 路面工程······72
7.2 基层、底基层和垫层······72
7.3 沥青路面······72
7.4 水泥混凝土路面······75
7.5 天然石材路面······76
7.6 预制砌块路面······77
7.7 砂石路面······78
8 桥涵······79
8.1 一般规定······79
8.2 桥涵设计······79
