浅埋富水地段隧道施工技术

The Tunnel Construction Technique in the Sectors with Shallow Burial Depth and Abundant Groundwater

长岭隧道通过苦荞溪浅埋富水地段,隧道埋深浅,最小埋深不足12m。为保证施工安全,该段隧道开挖前对地表进行加固,同时配合超前地质预报,按照“短进尺、弱爆破、强支护”的施工原则,确保了施工安全。

The Changling Tunnel goes through the Kuqiaoxi sector with shallow burial depth and abundant groundwater. Its minimum depth of burial is less than 12 m. In order to guarantee the safety in construction, before the excavation of this tunnel, should strengthen the ground surface and make geological prediction, and follow the construction principle of ＂short grubbing, weak blasting and strong supporting＂ which ensures the safety of the construction.