摘要
常张高速公路关口垭隧道右洞施工过程中连降暴雨,导致YK73+955～YK73+925段塌方,分析塌方原因后,结合工程具体情况,采用超前小导管预注浆方法处理塌方区,在处理段增设两个监测断面,从隧道收敛位移和拱顶下沉规律结果可知,超前小导管预注浆方法处理塌方区效果良好.
Owing to cross - section YK73 continuous rainstorm ＋ 955 - YK73 ＋ 925 and fractured surrounding rock, collapse of tunnel was broken out in the Based on the analysis of field engineering geology and construction condition, ahead ductile grouting method was recommended and applied to pre - treat the surrounding rock. In order to test consolidation effect, two measurement cross sections were set up at the collapse zone. Measurement results of convergence and vault displacement show that the tunnel collapse zone was well strengthened by the ahead ductile grouting method.
出处
《工程地质学报》
CSCD
2005年第3期316-319,共4页
Journal of Engineering Geology
基金
湖南省教育厅项目(03C509)
国家自然科学基金项目(50378096)资助.
关键词
隧道工程
塌方处理
效果分析
Tunneling engineering, Collapse disposal, Effect analysis
作者简介
陈秋南（1979-），男，副教授，桥梁与隧道工程专业博士生．Email：cqndoc@163．com
