向东渠八尺门渡槽异地迁移保护施工技术

Construction Technology for Relocation and Protection of the Bachimen Aqueduct in the Eastern Canal

向东渠八尺门渡槽为大型线性连接的高耸水工构筑物,建于1973年,曾为解决东山岛淡水资源严重缺乏问题发挥了重要作用,为不可移动文物点。现因海洋生态环境治理,需拆除八尺门海堤,其上渡槽迁移至异地进行保护。针对渡槽的组成形式和结构特点,提出分体式移位法异地迁移方案。实践表明,采用钢套箱辅助吊装U型槽和托换装置辅助分段槽墩技术,能够有效保证异地迁移过程中渡槽文物本体安全,可为类似工程提供参考。

The East Canal Bachimen aqueduct is a large linear connection towering hydraulic structure built in 1973,it has played an important role in solving the serious shortage of fresh water resources in Dongshan Island,and is now an immovable cultural relic point.Due to the governance of marine ecological environment,Bachimen seawall needs to be dismantled and its upper aqueduct needs to be transferred to another place for protection.According to the composition form and structural characteristics of the aqueduct,a scheme of remote migration by split-type shifting method is proposed.Practice has shown that the use of steel box assisting lift of U-shaped grooves and support device assisted segmented pier technology can effectively ensure the safety of the cultural relic of the aqueduct during the process of relocation from different places,and can be used as a reference in similar projects.