摘要
溶洞是云贵川地区隧道施工中常见的不良地质现象,如何制定相应合理可行的处治方案和应急措施是关键技术难题。针对溪洛渡库区黄坪村隧道施工开挖出的溶洞,依据地形地貌特征、岩性及其地质构造,提出了溶洞顶部和底部的治理方案,主要包括锚喷挂网支护、注浆回填洞渣以及衬砌设计;实践证明治理方案行之有效,确保了隧道顺利穿过此段岩溶区域。
Karst cave is a common unfavorable geological phenomenon in tunnel construction in Yunnan-Guizhou-Sichuan area, whose treatment and emergency response measures are key technical issues. In the construction of Huangping Village tunnel in Xiluodu Reservoir area, karst caves are observed. Considering the topographical, lithological and structural conditions, treatment measures are proposed for the top and bottom parts of the caves, including anchored shotcreting net support, grouting with dredge backfilling, and tunnel lining. Practice shows that the treatment measures are effective, which ensures the safety of the tunnel in this karst area.
作者
韩炼
胡俊
吴雨薇
HAN Lian;HU Jun;WU Yuwei(Jingzhou Yangtze River Authority,Jingzhou 434000,China;College of Civil Engineering and Architecture,Hainan University,Haikou 570228,China)
出处
《水电与新能源》
2018年第11期24-27,共4页
Hydropower and New Energy
基金
国家自然科学基金项目(51368017)
海南省自然科学基金项目(518MS122
518QN307)
海南省研究生创新科研课题(Hys2018-165)
关键词
溪洛渡库区
黄坪村隧道
隧道溶洞
溶洞治理
处理方案
Xiluodu Reservoir area
Huangping Village tunnel
karst cave in tunnel
karst cave treatment
treatment scheme
