近日,由中交集团所属隧道局负责实施的南京地铁三号线12标项目,实现盾构双线贯通。
自2011年11月开工以来,项目部大力实施技术攻关,严格推行标准化管理,先后攻克了小半径曲线始发、全断面通过软流塑地层、地下管线林立、地上建筑物复杂等众多难题。特别是盾构成功穿越小半径曲线矿山法隧道,被媒体比作车辆在冰面急转弯,填补了该领域的国内空白,成功打造了中交地铁品牌。
据悉,该项目盾构双线全长2620米,由一台盾构机实施掘进,工程具有风险高、难度大等特点,被业主称作全线工程风险最高、施工难度最大、地铁工法最全的标段。
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