ICS 91.140.80 CCS P 414201 武汉市 地方标准 DB4201/T 725—2024 武汉市排水检查井非开挖修复 技术规程 Code of practice for trenchless rehabilitation of drainage manholes in Wuhan 2024 - 12 - 26发布 2025 - 01 - 26实施 武汉市市场监督管理局 发 布 DB4201/T 725— 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、符号 .................................................................... 2 术语和定义 ...................................................................... 23.1 符号 ............................................................................ 43.2 4 基本规定 ............................................................................ 5 5 检测及评估 .......................................................................... 5 检查井检测 ...................................................................... 55.1 检查井评估 ...................................................................... 65.2 6 设计 ................................................................................ 7 一般规定 ........................................................................ 76.1 喷涂法 .......................................................................... 86.2 喷筑法 .......................................................................... 86.3 原位固化法 ...................................................................... 96.4 模筑法 ......................................................................... 116.5 预制井法 ....................................................................... 156.6 原位更换法 ..................................................................... 156.7 修复方法选择 ................................................................... 166.8 内衬管壁厚设计 ................................................................. 196.9 7 预处理 ............................................................................. 20 一般规定 ....................................................................... 207.1 检查井清洗 ..................................................................... 207.2 封堵及导流 ..................................................................... 217.3 土体注浆 ....................................................................... 217.4 裂缝嵌补 ....................................................................... 217.5 内壁处理 ....................................................................... 227.6 8 施工 ............................................................................... 22 一般规定 ....................................................................... 228.1 喷涂法 ......................................................................... 238.2 喷筑法 ......................................................................... 238.3 原位固化法 ..................................................................... 248.4 模筑法 ......................................................................... 268.5 预制井法 ....................................................................... 288.6 原位更换法 ..................................................................... 288.7 9 验收 ............................................................................... 29DB4201/T 725— 2024 II 一般规定 ........................................................................ 299.1 喷涂法 .......................................................................... 309.2 喷筑法 .......................................................................... 309.3 原位固化法 ...................................................................... 319.4 模筑法 .......................................................................... 329.5 预制井法 ........................................................................ 339.6 原位更换法 ...................................................................... 349.7 密闭性试验 ..................................................