太平隧道穿越大型溶洞处治方案设计  

Design and Remediation Measures of Taiping Tunnel Through Large Karstic Rock Cavern

作　　者：宋梓栋 SONG Zidong(CCCC Second Highway Consultants Co.Ltd.,Wuhan 430056)

机构地区：[1]中交第二公路勘察设计研究院有限公司,武汉430056

出　　处：《土工基础》2020年第6期667-670,共4页Soil Engineering and Foundation

基　　金：中国交通建设股份有限公司2017年度特大科技研发项目(KJFZ-2017-073)。

摘　　要：湖北宣鹤高速公路太平隧道施工过程中揭露出特大型溶洞,该溶洞具有体态大、分布大量块石、穹顶存在掉块现象等特点,为隧道施工带来极大困难。通过对溶洞现状的地质调查,提出一种溶洞跨越方案以保证施工期间的工人安全,并降低运营期间的风险,为其他高速公路隧道跨越特大溶洞提供参考。During the construction of Taiping tunnel of Xuanhe Expressway in Hubei Province,a large karstic cavern was encountered.The rock cavern had the characteristics of large size,a large number of broken rocks accumulated at the bottom and the high probability of falling rock hazards from top of rock cavern,which brought great difficulties to the tunnel excavation.Through the geological survey of karst rock cavern,this paper presents a design approach that spanning over the rock cavity to ensure the safety of workers during the construction and to reduce the operation cost in the service.

关 键 词：隧道工程 特大溶洞 处理方案 

分 类 号：U456[建筑科学—桥梁与隧道工程]