单排组合钢板桩在开敞式感潮河道工程中的设计和实践

Design and Practice of Single-row Composite Sheet Piles in Open Tidal Riverway Engineering

摘要:

针对开敞式感潮河道工程受潮汐影响显著，施工环境复杂，对支护结构的稳定性和防渗要求极高等技术难题，结合黄浦江堤防维修加固工程，对单排组合钢板桩的应用技术开展系统研究。首先论述其结构形式施工便捷、经济性好，占地节约和环保节能等优势；继而，通过数值模拟分析多工况下的受力变化和位移变形；最终，将优化后的技术方案成功应用于工程实践。结果表明，单排组合钢板桩能够有效满足开敞式感潮河道堤防维修实施期间基坑的稳定性与防渗性要求，其研究成果对类似环境下的工程具有重要的参考价值和推广应用前景。

Abstract:

Aiming at the technical challenges of open tidal riverway projects significantly affected by tides, complex construction environments and extremely high requirements for the stability and anti-seepage of supporting structures, combined with the maintenance and reinforcement project of the Huangpu River embankment, a systematic study is conducted on the application technology of single-row composite steel sheet piles. Firstly, its advantages such as convenient construction, good economy, land-saving, environmental protection and energy conservation of the structures are discussed. And then, through numerical simulation, the force changes and displacement deformations under multiple constructing conditions are analyzed. Finally, the optimized technical scheme is successfully applied in engineering practice. The results show that the single-row composite steel sheet piles can effectively meet the stability and seepage prevention requirements of the foundation pit during the maintenance implementation of the open tidal riverway embankment, and the research results have important reference value and promotion prospects for the projects under the similar environments.