GBT51224-2017······1

1 總則······10

2 術語和符號······11

2.1 術語······11

2.2 符號······11

3 基本規(guī)定······13

3.1 道路分級······13

3.2 設計車輛······13

3.3 設計速度······14

3.4 道路建筑限界······15

3.5 防災標準······16

4 橫斷面······17

4.1 一般規(guī)定······17

4.2 橫斷面布置······17

4.3 橫斷面組成及寬度······18

4.4 路拱橫坡······19

5 平面、縱斷面及道路交叉······20

5.1 一般規(guī)定······20

5.2 平面設計······20

5.3 縱斷面設計······23

5.4 道路交叉······24

6 路基工程······27

6.1 一般規(guī)定······27

6.2 路基設計······27

6.3 路基施工與質量驗收······28

6.4 路基排水······29

7 路面工程······31

7.1 一般規(guī)定······31

7.2 基層、底基層和墊層······31

7.3 瀝青路面······34

7.4 水泥混凝土路面······35

7.5 天然石材路面······36

7.6 預制砌塊路面······39

7.7 砂石路面······41

8 橋涵······42

8.1 一般規(guī)定······42

8.2 橋涵設計······44

9 附屬設施······46

9.1 照明······46

9.2 管線······46

9.3 交通安全設施······47

9.4 綠化······47

本規(guī)范用詞說明······49

引用標準名錄······50

附:條文說明······52

l 總則······55

3 基本規(guī)定······56

3.1 道路分級······56

3.2 設計車輛······56

3.3 設計速度······57

3.4 道路建筑限界······57

3.5 防災標準······58

4 橫斷面······59

4.1 一般規(guī)定······59

4.2 橫斷面布置······59

4.3 橫斷面組成及寬度······59

5 平面、縱斷面及道路交叉······64

5.1 一般規(guī)定······64

5.2 平面設計······64

5.3 縱斷面設計······67

5.4 道路交叉······69

6 路基工程······70

6.2 路基設計······70

6.3 路基施工與質量驗收······70

6.4 路基排水······70

7 路面工程······72

7.2 基層、底基層和墊層······72

7.3 瀝青路面······72

7.4 水泥混凝土路面······75

7.5 天然石材路面······76

7.6 預制砌塊路面······77

7.7 砂石路面······78

8 橋涵······79

8.1 一般規(guī)定······79

8.2 橋涵設計······79