ICS 93.080.01 CCS P 66 46 海 南 省 地 方 标 准 DB46/T 668—2025 公路沥青路面设计与施工技术规范 Technical Specifications for Design and Construction of Highway Asphalt Pavement 2025 - 02 - 28 发布 2025 - 04 - 01 实施 海南省市场监督管理局 发 布 DB46/T 668-2025 I 目 次 前 言 .................................................................................................................................................... 3 1 范围 ............................................................................................................................................................ 1 2 规范性引用文件 ........................................................................................................................................ 1 3 术语和定义 ................................................................................................................................................ 1 4 符号和缩略语 ............................................................................................................................................ 3 5 基本规定 .................................................................................................................................................... 3 5.1 原则要求 ........................................................................ 3 5.2 路面设计要求 .................................................................... 3 5.3 路基设计要求 .................................................................... 4 6 路面结构组合设计 .................................................................................................................................... 4 6.1 一般规定 ........................................................................ 4 6.2 半刚性基层沥青路面结构 ........................................................... 4 6.3 柔性基层沥青路面结构............................................................. 5 7 基层和底基层设计 .................................................................................................................................... 6 7.1 水泥稳定碎石基层、底基层 ......................................................... 6 7.2 级配碎石基层、底基层............................................................. 7 7.3 沥青稳定碎石基层................................................................. 7 7.4 沥青路面冷再生材料基层 ........................................................... 7 8 沥青面层设计 ............................................................................................................................................ 7 8.1 设计要求 ........................................................................ 7 8.2 设计指标 ........................................................................ 7 9 透层、黏层和下封层设计 ......................................................................................................................... 8 9.1 透层 ............................................................................ 8 9.2 黏层 ............................................................................ 8 9.3 下封层 .......................................................................... 8 9.4 防水黏结层 ...................................................................... 9 10 特殊路段沥青路面铺装设计 ................................................................................................................... 9 10.1 旧水泥混凝土路面加铺沥青路面 .................................................... 9 10.2 桥面沥青层铺装.................................................................. 9 10.3 隧道沥青路面铺装................................................................ 9 10.4 长大纵坡路段沥青路面铺装 ....................................................... 10 11 级配碎石层施工 .................................................................................................................................... 10 11.1 一般规定 ...................................................................... 10 11.2 材料要求 ...................................................................... 10 DB 46/T XXXX—2025 II11.3 混合料组成设计 ................