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First Pipe Jacking Section of Guiyang Rail Transit Line 2 Substation Civil Works Successfully Breaks Through

2019-06-21 787 0人评论

　　6月14日，随着竖井掌子面迎来第一缕阳光，标志着由中铁电气化局集团西安电化公司承建的贵阳市轨道交通2号线一期主变电所土建项目首段顶管成功贯通。

　　此次贯通顶管为1号到3号竖井，均在贵钢厂老厂区内，顶管长度为141米，为确保首段顶管顺利贯通，项目部做了大量前期准备工作，科学部署施工计划，不断优化顶进方案，持续强化过程控制，克服了现场施工场地有限，长距离顶管轴线精准定位，废泥浆零排放，地下水富集，隐伏溶洞、破碎带、局部掉块、坍塌、涌水、冒顶等不良地质难题，成功贯通首段顶管。

　　首段顶管的贯通，标志着贵阳市轨道交通2号线一期主变电所土建项目取得了阶段性的胜利，为即将实现的415.41米顶管全线贯通奠定了坚实基础。顶管全线贯通后，顶管内部将铺设电力电缆，连接主变电所为贵阳地铁2号线提供动力供电。

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First Pipe Jacking Section of Guiyang Rail Transit Line 2 Substation Civil Works Successfully Breaks Through

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First Pipe Jacking Section of Guiyang Rail Transit Line 2 Substation Civil Works Successfully Breaks Through

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