ICS 93.080.01 CCS P 66 DB45 广 西 壮 族 自 治 区 地 方 标 准 DB 45/T 2149—2020 公路边坡工程技术规范 Technical code for highway slope engineering 2020 - 10 - 12 发布 广西壮族自治区市场监督管理局 2020 - 11 - 20 实施 发 布 DB45/T 2149—2020 目  次 前言.................................................................................................................................................................... III 1 范围.................................................................................................................................................................. 1 2 规范性引用文件.............................................................................................................................................. 1 3 术语和定义...................................................................................................................................................... 2 4 基本规定.......................................................................................................................................................... 3 4.1 4.2 5 勘察.................................................................................................................................................................. 6 5.1 5.2 5.3 5.4 6 一般规定............................................................................................................................................... 13 横断面设计........................................................................................................................................... 15 软质岩边坡........................................................................................................................................... 15 硬质岩边坡........................................................................................................................................... 17 特殊岩土边坡....................................................................................................................................... 18 坡面防护设计................................................................................................................................................ 18 8.1 8.2 8.3 8.4 9 一般规定................................................................................................................................................. 9 土质边坡............................................................................................................................................... 11 软质岩边坡........................................................................................................................................... 12 硬质岩边坡........................................................................................................................................... 12 岩土混合边坡....................................................................................................................................... 13 特殊岩土边坡....................................................................................................................................... 13 坡体稳定设计................................................................................................................................................ 13 7.1 7.2 7.3 7.4 7.5 8 一般规定................................................................................................................................................. 6 勘察技术要求......................................................................................................................................... 6 岩土力学参数取值................................................................................................................................. 8 成果报告................................................................................................................................................. 9 边坡稳定性分析.............................................................................................................................................. 9 6.1 6.2 6.3 6.4 6.5 6.6 7 一般规定................................................................................................................................................. 3 边坡的分类及安全等级......................................................................................................................... 4 一般规定............................................................................................................................................... 18 植物防护.....................................................................