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湛江海湾大桥主桥48号墩B3桩,在下放钢筋笼过程中发生塌孔,在拆除钢筋笼时,塌孔又进一步扩大,导致B3桩钢护筒下沉至最低水位以下的事故。主要介绍B3桩事故原因和处理方案。
B3 pile in the main bridge of Zhanjiang Bay Bridge No. 48 pierled the hole in the course of placing the steel cage. When the steel cage was demolished, the collapse hole enlarged further, resulting in the accident of B3 pile steel casing sinking below the lowest water level. Mainly introduces the reason and solution of B3 pile accident.