11月8日，由中铁三局承建的贵阳轨道交通3号线土建12标大营坡站~茶店站区间右线隧道顺利贯通。
大营坡站~茶店站区间由茶店站始发，侧穿贵阳市盛世中学，下穿人行天桥、侧穿房屋群、侧穿万科楼、下穿茶店大沟、侧穿2~3层居民楼，最后进入大营坡站。该区间右线长度1084米,线路最小半径为320米,区间盾构穿越钻孔遇溶率7.2%的喀斯特地貌地区及瓦斯地层。值得一提的是，接收端左线与右线之间岩柱仅2.3米，项目部在盾构接收前，对左线正在施工的存车线矿山法隧道进行了充分的加固，同时安排人员24小时监测，最终监测数据一切正常，顺利实现盾构贯通。
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