摘要
罗汉山2^(#)隧道右线YK5+350~YK5+425区段横向坡度较大,隧道覆土较浅,穿越强-中风化砂岩,岩质较软,岩体节理裂隙十分发育,岩层较破碎且地下水位高于隧道埋深。防止该段洞内坍塌、涌水是该段施工的核心控制施工项。该段施工运用了地表注浆加固技术,施工结束后取得了良好的效果。论文在说明了地表注浆的施工方法及施工要素的基础上,总结了施工参数,可供同类工程施工参考。
The YK5+350~YK5+425 section of the right line of Luohanshan 2^(#)tunnel has a relatively large lateral slope,shallow tunnel cover,and a soft rock through strong-medium weathered sandstone.The rock mass is well-developed with joints and fissures.Broken and the groundwater level is higher than the buried depth of the tunnel.Preventing collapse and water gushing in this section of the tunnel is the core control construction item of this section of construction.The construction of this section used surface grouting reinforcement technology and achieved good results after the completion of the construction.The article summarizes the construction parameters on the basis of explaining the construction methods and construction elements of surface grouting,which can provide a reference for the construction of similar projects.
作者
赵继伟
高杨
ZHAO Ji-wei;GAO Yang(China Construction First Bureau(Group)Co.Ltd.,Beijing 100161,China)
出处
《工程建设与设计》
2021年第3期170-171,174,共3页
Construction & Design for Engineering
关键词
长大隧道
浅埋
地表注浆
加固技术
long and large tunnel
shallow buried
surface grouting
reinforcement technology
