摘要
长九(神山)灰岩矿4号隧洞进口地质条件差,环境条件复杂,采用常规开挖支护方案不可行。为确保4号隧洞进口结构及施工安全,对4号隧洞进口段支护设计提出了很高的要求。论文详述了4号隧洞进口开挖支护方式及参数,施工实践表明,设计方案安全经济、合理可行,可供类似工程借鉴。
The geological conditions at the entrance of tunnel 4 in Changjiu(Shenshan)limestone mine are poor and the environmental conditions are complex,so it is not feasible to adopt the conventional excavation and support scheme.In order to ensure the entrance structure and construction safety of tunnel 4,high requirements are put forward for the support design of the entrance section of tunnel 4.The paper detail expounds the excavation and support mode and parameters of the No.4 tunnel entrance.The construction practice shows that the design scheme is safe,economic,reasonable and feasible,which can be used for reference by similar projects.
作者
刘岭楠
王晗
LIU Ling-nan;WANG Han(Hydrochina Huadong Engineering Coiporation Limited,Hangzhou 311122,China)
出处
《工程建设与设计》
2020年第1期114-116,120,共4页
Construction & Design for Engineering
关键词
复杂环境
连续墙
隧洞支护
complex environment
continuous wall
tunnel support
