ICS 91.100.30 CCS Q 14 DB 42 湖北省 地方标准 DB42/T 1890—2022 预制混凝土衬砌管片生产工艺技术规程 Code of practice for processing technique of reinforced concrete segments 湖北省住房和城乡建设厅 湖北省市场监督管理局 2022-06-28发布 2022-11-01实施 联 合 发 布 QlOS÷ÿ‰ÄƒhQÆ^“ÿQM9N}ÿ IDÿguifan8899 QlOS÷ÿ‰ÄƒhQÆ^“ÿQM9N}ÿ IDÿguifan8899DB42/T 1890 —2022 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 ................................ ................................ .......... 2 4 总则 ................................ ................................ ................ 3 5 基本规定 ................................ ................................ ............ 3 6 原材料 ................................ ................................ .............. 3 7 生产工艺流程 ................................ ................................ ........ 5 8 钢筋加工 及钢筋骨架制作 ................................ .............................. 5 9 模具及组装 ................................ ................................ .......... 6 10 混凝土 ................................ ................................ ............. 8 11 成型 ................................ ................................ .............. 10 12 前期养护 ................................ ................................ .......... 11 13 脱模 ................................ ................................ .............. 11 14 后期养护 ................................ ................................ .......... 11 15 检验 ................................ ................................ .............. 12 16 修补 ................................ ................................ .............. 12 17 标志 ................................ ................................ .............. 12 18 防腐 ................................ ................................ .............. 12 19 贮存及场内运输 ................................ ................................ .... 13 附录A（规范性）预埋槽道安装固定方法 ................................ .................. 15 条文说明 ................................ ................................ ............. 17 QlOS÷ÿ‰ÄƒhQÆ^“ÿQM9N}ÿ IDÿguifan8899