tunnel excavation meaning in Chinese

隧不洞开挖
隧道开挖
隧道开凿

Analysis of ground subsidence caused by metro tunnel excavation
地铁隧道开挖引起地表塌陷分析
Deep hole v cut blasting technology for tunnel excavation
深孔楔形掏槽爆破技术在隧道掘进中的应用
Influence of shallow tunnel excavation on ground surface buildings
浅埋隧道开挖对地表建筑物的影响
Study on influence of metro tunnel excavation on buried pipelines
城市地铁隧道施工对管线的影响研究
Drill and blast method of tunnel excavation on hard rock
硬岩地铁隧道钻爆法开挖结合盾构法衬砌的施工技术

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