ICS 65.020.20 CCS B31 DB 21 01 沈 阳 市 地 方 标 准 DB 21 01/ T 0109 — 2024 城市 道路 球墨铸铁检查井盖施工图集 2024 -07-05 发布 2024 -08-05 实施 沈阳市市场监督管理局 发 布 DB2101/ T 0109 — 202 4 I 目 次 前 言 ................................................................................................................................................................. II 城市道路球墨铸铁检查井盖施工图集 ............................................................................................................... 1 1 范围 ................................................................................................................................................................... 1 2 规范性引用文件 ............................................................................................................................................... 1 3 术语和定义 ....................................................................................................................................................... 1 3.1 检查井 ........................................................................................................................................................... 2 3.2 检查井盖 ....................................................................................................................................................... 2 3.3 井座 ............................................................................................................................................................... 2 3.4 自调式防沉降井盖（倒承式） ................................................................................................................... 2 3.5 传统检查井盖（正承式） ........................................................................................................................... 2 3.6 防坠装置 ....................................................................................................................................................... 2 3.7 卸荷板 ........................................................................................................................................................... 2 3.8 雨水箅 ........................................................................................................................................................... 2 3.9 箅子 ............................................................................................................................................................... 2 3.10 箅座 ............................................................................................................................................................. 2 4 技术要求 ........................................................................................................................................................... 2 4.1 一般要求 ....................................................................................................................................................... 2 4.2 选型要求 ....................................................................................................................................................... 3 4.3 材料要求 ....................................................................................................................................................... 4 4.4 检查井盖及雨水箅 ....................................................................................................................................... 4 4.5 防坠装置 ....................................................................................................................................................... 5 4.6 混凝土构件 ................................................................................................................................................... 5 5 施工及验收 ....................................................................................................................................................... 5 5.1 施工 ..............................................................................................................................................