ICS07.060 CCSA47 21 辽宁省地方标准 DB21/T3762—2023 水工隧洞质量检测技术规程 TechnicalcodeforqualitydetectionofHydraulicTunnel 2023-06-30发布 2023-07-30实施 辽宁省市场监督管理局  发布 DB21/T3762—2023 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基本规定.............................................................................3 4.1基本要求........................................................................3 4.2检测流程........................................................................3 4.3检测方法........................................................................3 4.4检测仪器........................................................................3 4.5检测比例........................................................................4 4.6检测单元........................................................................4 4.7质量评价........................................................................4 5不衬砌隧洞...........................................................................4 5.1检测项目........................................................................4 5.2外观质量........................................................................4 5.3横断面尺寸......................................................................5 5.4轴线坐标........................................................................5 5.5平整度..........................................................................5 5.6岩石抗压强度....................................................................5 5.7岩体完整性......................................................................6 5.8水质分析........................................................................6 6锚喷隧洞.............................................................................6 6.1检测项目........................................................................6 6.2外观质量........................................................................6 6.3裂缝............................................................................7 6.4横断面尺寸......................................................................7 6.5轴线坐标........................................................................7 6.6平整度..........................................................................7 6.7黏结强度........................................................................8 6.8喷层厚度........................................................................8 6.9挂网位置及范围..................................................................8 6.10抗压强度.......................................................................9 6.11灌浆质量.......................................................................9 6.12水质分析.......................................................................9 7钢筋混凝土衬砌隧洞...................................................................9 7.1检测项目........................................................................9 7.2外观质量.......................................................................10 DB21/T3762—2023 II7.3裂缝...........................................................................10 7.4连接缝止水.....................................................................10 7.5横断面尺寸.....................................................................10 7.6轴线坐标.......................................................................11 7.7平整度.........................................................................11 7.8钢筋数量、钢筋间距、保护层厚度.................................................11 7.9混凝土与围岩接触面脱空.........................................................12 7.10衬砌厚度......................................................................12 7.11内部缺陷......................................................................12 7.12抗压强度......................................................................13 7.13抗冻性能和