包钢φ180无缝旋流沉淀池施工技术总结

Summary on 180 dia seamless open caisson construction technologies at Baotou Steel

采用沉井施工地下筒体结构法，从降低地下水位到旋流井封底施工共经历了四个阶段，最终成功地完成了族流井施工的全过程。

By using open caisson and the hollow underground column structure method, the construction experienced four stages from water level reduction to sinkwell back over, and accomplished the whole process of open caisson construction at last.