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New Progress on Guiyang Rail Transit Line 2: Right-Line Tunnel of Shuijingpo Station–Changling Road Station Section Breaks Through

2017-12-12 708 0人评论

　　12月9日，贵阳轨道交通2号线水井坡站至长岭路站区间右线隧道顺利贯通，工程共历时1年6个月零9天。
　　轨道交通2号线水井坡站至长岭路站区间隧道全长730.465米，其围岩稳定性差、水文地质条件复杂多变、隧道覆盖层较浅，且90%都在交通繁忙的行车道下方，场区范围内民用建筑物较密集，人员活动频繁，施工难度较大。
　　针对复杂的施工条件，施工单位按照“管超前、严注浆、短开挖、强支护、快封闭、勤量测”的方针，采用冷开结合弱爆破的方式进行施工，根据超前地质预报优化开挖及支护参数，加强施工过程中的质量控制，确保隧道施工安全，稳步推进施工进度。

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New Progress on Guiyang Rail Transit Line 2: Right-Line Tunnel of Shuijingpo Station–Changling Road Station Section Breaks Through

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New Progress on Guiyang Rail Transit Line 2: Right-Line Tunnel of Shuijingpo Station–Changling Road Station Section Breaks Through

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