日前,上海黄浦江底最大、最长的超大直径隧遭一沿江通道越江隧道新建工程浦西岸边段基坑顺利通过验收,全面进入开挖阶段,开挖总量约33.5万m2。该项目开挖全部采用明挖法,开挖过程中运用分层、分段、对称、平衡、限时开挖、随挖随撑的原则,引用“时空效应”理论原理,对基坑开挖作动态管理,真正做到信息化施工。此外,项 Recently, the largest and longest large-diameter tunnel in the Huangpu River in Shanghai was successfully checked and accepted by a foundation pit along the Puxi shore section of the newly built Yangtze River Crossing River Crossing Tunnel project and entered the excavation stage in an all-round way with a total excavation of about 335,000 m2. The excavation of this project all adopts the method of open excavation. During excavation, the principle of stratification, sectioning, symmetry, balance, limited time excavation and excavation with excavation is adopted, and the theory of space-time effect Digging for dynamic management, truly informatization construction. In addition, items