高速铁路隧道复杂地质条件下浅埋偏压洞口设计研究  

Design Research of Shallow Tunnel Portal with Eccentric Load on High-speed Railway under Complicated Geological Conditions

作　　者：李怀鉴[1] 马志富[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《铁道标准设计》2013年第5期94-97,共4页Railway Standard Design

摘　　要：依托沪昆铁路客运专线长沙至玉屏段上店隧道工程,系统说明复杂地形以及复杂地质条件下大跨度隧道进洞的各种问题,说明了为克服地形条件采取工程桩的必要性,明暗分界的设置原则、开挖方法的必要性和施工注意事项,并强调了洞外排水系统的重要性等。Taking Shangdian Tunnel of Changsha-Yuping section on Shanghai-Kunming Passenger- dedicated Line as an example, the authors expound systematically all kinds of problems in entering the large span tunnel under complex geological conditions. Meanwhile, the authors point out that, in order to overcome the difficulties caused by complex terrain, it is necessary to install the structure piles. And then the reasonable installation principle and excavation method are expounded herein. In addition, the authors introduce some matters needing attention in construction and emphasize the significance of drainage system outside the tunnel portal.

关 键 词：高速铁路 浅埋偏压隧道 洞口 设计 

分 类 号：U238[交通运输工程—道路与铁道工程] U452.27[建筑科学—桥梁与隧道工程]