紧邻河道箱涵复杂环境下深基坑设计优化及施工技术

Design Optimization and Construction Technology of Deep Foundation Pit and Box Culvert Adjacent to River in Complex Environment

为控制深基坑与出水箱涵同步施工,降低深基坑施工风险,考虑采取优化设计方案,改变围护形式,明确施工顺序,以确保基坑及周边房屋和综合管线的安全。通过上海市某紧邻河道箱涵复杂环境下深基坑设计优化及施工技术的实践,验证了优化设计方案和施工工艺,各自调整施工顺序合理穿插作业,有效地确保了紧邻河道复杂环境下箱涵、深基坑同步施工的安全性。

To control the synchronous construction of deep foundation pit and outlet box culvert,and reduce the construction risk of deep foundation pit,the optimization design scheme is considered,the foundation pit support form is changed,and the construction sequence is clarified,so as to ensure the safety of foundation pit,surrounding houses and comprehensive pipelines.Through the practice of design optimization and construction technology of deep foundation pit adjacent to river box culvert in complex environment in Shanghai,the optimized design scheme and construction technology have been verified.Through respectively adjusting the construction sequence and reasonably interpenetrating operations,the safety of synchronous construction of box culvert and deep foundation pit adjacent to river in complex environment has been ensured effectively.