“863”大型盾构超小半径平曲段施工质量控制上海隧道工程股份有限公司打浦路隧道工程项经部2025 年 12 月1. 课题概况................................................................................................11.1 工程概况................................................................11.2 地质资料................................................................21.3 主要障碍物..............................................................42. QC 课题小组介绍.................................................................................43. 选题理由................................................................................................63.1 质量控制难度大：........................................................63.2 社会影响大：............................................................64. P（计划）阶段......................................................................................64.1 现状调查................................................................64.2 寻找主要问题............................................................94.3 目标确定...............................................................104.4 可行性分析.............................................................104.5 因素分析及寻找主要原因.................................................134.6 制订对策...............................................................145. D（实施）阶段...................................................................................155.1 实施（一）盾构机适应性改造.............................................155.2 实施（二）盾构机姿态控制...............................................165.3 实施（三）管片选型合理化...............................................175.4 实施（四）提高拼装质量.................................................215.5 实施（五）提高同步注浆质量.............................................225.6 实施（六）提高监测水平.................................................246. C（检查）阶段..............................
