ICS 93.060 CCS P 66 45 广 西 壮 族 自 治 区 地 方 标 准 DB45/T 2832—2024 公路隧道维修加固技术规程 Code of practice for maintenance and reinforcement of highway tunnel 2024-03-28发布 2024-06-01实施 广西壮族自治区市场监督管理局 发布 DB45/T 2832 —2024 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 总体要求 ................................ ................................ ............. 2 5 调查、检测与勘察 ................................ ................................ .....2 5.1 一般规定 ................................ ................................ ......... 2 5.2 调查 ................................ ................................ ............. 3 5.3 检测 ................................ ................................ ............. 3 5.4 勘察 ................................ ................................ ............. 4 6 加固处治 ................................ ................................ ............. 4 6.1 一般规定 ................................ ................................ ......... 4 6.2 加固材料 ................................ ................................ ......... 4 6.3 总体设计 ................................ ................................ ......... 6 6.4 荷载 ................................ ................................ ............. 6 6.5 结构计算 ................................ ................................ ......... 8 6.6 围岩加固 ................................ ................................ ......... 9 6.7 提高衬砌承载力 ................................ ................................ ...9 6.8 增设支点 ................................ ................................ ........ 12 7 不良地质处治 ................................ ................................ ........ 12 7.1 一般规定 ................................ ................................ ........ 12 7.2 洞口山体滑动 ................................ ................................ ....13 7.3 软弱地基 ................................ ................................ ........ 13 7.4 高水压 ................................ ................................ .......... 14 7.5 岩溶 ................................ ................................ ............ 14 7.6 膨胀性围岩 ................................ ................................ ......15 8 裂缝修补及渗漏水处治 ................................ ................................ 15 8.1 一般规定 ................................ ................................ ........ 15 8.2 裂缝修补 ................................ ................................ ........ 15 8.3 渗漏水处治 ................................ ................................ ......16 9 监控量测 ................................ ................................ ............ 16 9.1 一般规定 ................................ ................................ ........ 16 9.2 施工期间监测 ................................ ................................ ....16 9.3 运营期间监测 ................................ ................................ ....17 附录A （规范性 ）洞口横向滑坡荷载 ................................ ...................... 18 A.1 滑体下切隧道荷载 ................................ ................................ 18