雁门关隧道富水段软弱围岩初期支护开裂变形控制技术  

Control Technology on Cracking and Deformation of Primary Support in Soft and Weak Surrounding Rocks of Water-rich Section of Yanmenguan Tunnel

作　　者：邓伯科 

机构地区：[1]中铁十二局集团第二工程有限公司,太原030032

出　　处：《铁道标准设计》2013年第1期97-100,共4页Railway Standard Design

摘　　要：结合北同蒲铁路取直线雁门关隧道软弱围岩初期支护开裂变形控制施工实例,介绍施工地质揭示情况,分析围岩与初期支护开裂变形原因,提出针对富水段软弱围岩初期支护开裂变形控制施工技术方法,创新了钢拱架锁脚锚管施工新工艺。The construction for cracking and deformation controlling of the primary support in soft and weak surrounding rocks of Yanmenguan Tunnel was taken as an example in this paper, which was located on Beitongpu Line that was adjusted as a straight line. The geological condition revealed in the process of construction was introduced, and the causes of cracking and deformation of surrounding rocks and its primary support were analyzed. Finally, construction techniques and methods of cracking and deformation controlling of primary support in soft and weak surrounding rocks in water-rich section of tunnel were proposed in this paper, with the innovation of new construction techniques which consists of anchor tubes locked by steel arch frame.

关 键 词：铁路隧道 软弱围岩 初期支护 开裂变形 控制技术 

分 类 号：U455[建筑科学—桥梁与隧道工程]