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上海某学校综合楼工程采用钻孔灌注桩桩基,桩径600mm,有效桩长30m,施工中有16根桩桩位遇到20世纪60年代建造的地下防空洞。防空
The construction of a school complex in Shanghai adopts a bored pile foundation with a pile diameter of 600mm and an effective pile length of 30m. During the construction, there are 16 pile piles encountered with underground boredom built in the 1960s. air defense