摘要
隧道洞口段地形地质条件较复杂,特别是当洞口存在滑坡和岩堆时,对隧道施工和后期的安全运营影响较大,因而确定合理而有效的工程处理措施是非常必要的。针对某隧道洞口存在滑坡和岩堆等特殊地形地质条件,采用工程类比和结构分析的方法,确定明洞外引、预加固桩、锚索框架梁和土钉墙等工程处理措施。结果表明:这些工程措施能够达到滑坡和岩堆等特殊地质地形治理的设计要求。
The complicated terrain and geology in the part of tunnel portal,especially the landslide and talus have a great influence on the tunnel construction and post-operation,so it is necessary to determine the effective and reasonable treatment measures for the part.The author,on the basis of complicated terrain and geology condition of landslide and talus in an actual engineering project,adopted the methods of engineering analogy and structure analysis,and determined the treatment measures such as the appropriate opencut tunnel,pre-reinforcement piles,anchor frame beam and soil nail wall.The results show that the treatment measures adopted can meet the design requirements of treating the landslide and talus in complicated terrain and geology area.
出处
《铁道标准设计》
北大核心
2012年第6期117-120,141,共5页
Railway Standard Design
关键词
隧道洞口
滑坡
岩堆
偏压
设计
tunnel portal
landside
talus
eccentric pressure
design
