成都讯1月29日，随着最后一次爆破完成，中铁隧道局承建的成渝中线高铁控制性工程——龙泉山隧道贯通，为后续无砟轨道和铺轨施工创造了有利条件。 中铁隧道局承担成渝中线高铁3标工程建设，施工内容包括“三隧两桥三路基”，分别为龙泉山隧道8027米、前锋村隧道2733米、黄家石隧道4682米，共计15442米，占比为95.6%，为单洞双线隧道；成渝高速大桥、徐家湾中桥，共计295米，占比为1.8%；三段...
Source Link成都讯1月29日，随着最后一次爆破完成，中铁隧道局承建的成渝中线高铁控制性工程——龙泉山隧道贯通，为后续无砟轨道和铺轨施工创造了有利条件。 中铁隧道局承担成渝中线高铁3标工程建设，施工内容包括“三隧两桥三路基”，分别为龙泉山隧道8027米、前锋村隧道2733米、黄家石隧道4682米，共计15442米，占比为95.6%，为单洞双线隧道；成渝高速大桥、徐家湾中桥，共计295米，占比为1.8%；三段...
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