中文摘要：

某山岭隧道施工中揭露纵向长14 m、横向宽24 m、高7 m的大型半充填溶洞,根据溶洞工程地质条件及隧道工程修建技术特点,在探明溶洞的基础上,严格遵循以疏为主,堵排结合,因地制宜,综合治理的原则,选择合理科学的溶洞处理方法,根据岩溶溶洞的发育规模及特征,采用溶腔揭示后的施工处理技术,降低和排除岩溶隧道溶洞的施工风险,确保了施工安全和工期,在工程实践取得的效果较好,可为相似工程提供参考。

英文摘要：

A mountain revealed large half filling karst cave in tunnel construction,which is 14 m ×24 m × 7 m（ long × wide × high）,according to the technical characteristics of the tunnel engineering construction and engineering geological conditions,on the basis of proven water-eroded cave,strictly follow the principle of the technique of water blockage combined with water drainage for water gushing control,local conditions,comprehensive treatment. According to the development scale and characteristics of karst caves,the use of rock-salt cavity reveals the construction processing technology,reduce and eliminate karst cave construction risk of tunnel and ensure the construction safety and construction period,the effect is better in engineering practice,can provide a reference for similar engineering.