43 湖南省地方标准 公路高液限土路基设计与施工技术规范 Technical specifications for design and construction of highway subgrade of high liquid limit soilICS CCS 93.080 P 66 发 布 湖南省市场监督管理局2021-12发布-29 2022-03实施-29DB43/T2280—2021 DB43/T 2280—2021 I 目 次 前言 ································ ································ ································ ························ Ⅲ 引言 ································ ································ ································ ························ Ⅴ 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 ································ ································ ································ ········· 2 5 勘察 ································ ································ ································ ····················· 2 5.1 一般规定 ································ ································ ································ ········· 2 5.2 初步勘察 ································ ································ ································ ········· 3 5.3 详细勘察 ································ ································ ································ ········· 5 6 设计 ································ ································ ································ ····················· 7 6.1 一般规定 ································ ································ ································ ········· 7 6.2 填方路基设计 ································ ································ ································ ··· 7 6.3 挖方路基设计 ································ ································ ································ ··· 9 6.4 路基边坡稳定性分析 ································ ································ ························ 11 6.5 边坡防护与加固设计 ································ ································ ························ 12 7 施工 ································ ································ ································ ··················· 15 7.1 一般规定 ································ ································ ································ ······· 15 7.2 填方路基施工 ································ ································ ································ · 16 7.3 挖方路基施工 ································ ································ ································ · 17 7.4 边坡防护 与加固施工 ································ ································ ························ 18 8 监测 ································ ································ ································ ··················· 19 8.1 一般规定 ································ ································ ································ ······· 19 8.2 高填路基监测 ································ ································ ································ · 19 8.3 深挖路基边坡监测 ································ ································ ··························· 19 附录A（资料性） 湖南省高液限土分布 ································ ································ ········ 21 附录B（规范性） 湿法重型击实试验 ································ ································ ··········· 23 B.1 目的和适用范围 ································ ································ ······························ 23 B.2 仪器设备 ································ ································ ································ ······· 23 B.3 试验步骤 ································ ································ ································ ······· 24 附录C（规范性） 吸附结合水含量试验 ································ ································ ········ 25 C.1 目