龙麟宫隧道溶腔处理施工技术

On Treatment and Construction Technology of Dissolved Cavity in Longlingong Tunnel

宜万铁路龙麟宫隧道地质条件复杂,岩溶发育成熟,隧道施工中揭示了大量溶腔,其中有多个工程界罕见的巨型溶腔。总结了龙鳞宫隧道典型溶腔的施工方法及规避相关施工风险的技术措施,为类似工程提供参考。

Longlingong tunnel in Yi-Wan Railway is characterized with the complicated geological conditions and the full development of karst. In the course of construction, a multitude of dissolved cavities are found, including several large- scale rare ones. This study sums up some technological methods by which the typical dissolved cavities are treated, con- struction is achieved and the relative risks are avoided, which can be reference to other similar projects.