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2003年7月1日,上海市地铁4号线在董家渡段发生了一起管涌坍塌的生产安全事故。事故导致施工作业面内大量水和流砂涌入,隧道部分结构损坏及周边地区地面沉降,3幢建筑物严重倾斜,防汛墙局部塌陷等险情。事故发生后,武警上海总队1000多名官兵紧急驰援。尽管事故没有造成人员伤亡,但直接经济损失高达1.5亿元,属于特别重大事故。
July 1, 2003, Shanghai Metro Line 4 in Dongjiadu occurred along with a collapsing pipe production safety accident. The accident resulted in the infiltration of a large amount of water and flowing sands into the construction operation surface, partial damage to the tunnel structure and land subsidence in the surrounding areas, serious inclines of the three buildings and partial collapse of the flood wall. After the accident, armed police Shanghai Corps more than 1,000 officers and men emergency assistance. Despite the fact that no casualties were caused by the accident, the direct economic loss amounted to 150 million yuan. This is a particularly serious accident.