ICS93.080.01 CCSP66 4401 广 州 市 地 方 标 准 DB4401/T230—2023 城市道路路面结构设计指南 Designguidelines forpavement structure ofurbanroads 2023-10-13发布 2023-11-13实施 广州市市场监督管理局 发布 DB4401/T230—2023 I目次 前言.......................................................................................................................................................................III 1范围.....................................................................................................................................................................1 2规范性引用文件................................................................................................................................................1 3术语和定义........................................................................................................................................................1 4符号.....................................................................................................................................................................3 5缩略语.................................................................................................................................................................3 6设计标准............................................................................................................................................................3 7路基与垫层........................................................................................................................................................5 7.1路基..............................................................................................................................................................5 7.2垫层..............................................................................................................................................................6 8底基层与基层....................................................................................................................................................6 9沥青路面............................................................................................................................................................9 9.1一般规定.....................................................................................................................................................9 9.2面层类型...................................................................................................................................................10 9.3设计参数...................................................................................................................................................10 9.4路面结构组合设计...................................................................................................................................12 9.5原材料设计指标与要求...........................................................................................................................12 9.6混合料组成设计.......................................................................................................................................19 9.7特殊路段路面结构设计...........................................................................................................................23 10水泥混凝土路面............................................................................................................................................23 10.1一般规定.................................................................................................................................................23 10.2设计参数.................................................................................................................................................23 10.3路面结构组合设计.................................................................................................................................24 10.4原材料设计指标与要求.........................................................................................................................24 10.5接缝设计......................................................