浅谈双侧壁导坑法在西宁隧道中的应用  

On the Application of Double Sidewalk Pilot Method in Xining Tunnel

作　　者：杜长栋 DU Chang-dong(China Railway Qinghai-Tibet Group Co., Ltd. Xining Station Transformation Project Construction Headquarters, Xining 810000, China)

机构地区：[1]中国铁路青藏集团有限公司西宁站改造工程建设指挥部,西宁810000

出　　处：《价值工程》2018年第15期188-189,共2页Value Engineering

摘　　要：新建铁路兰新第二双线西宁隧道为中国铁路总公司Ⅰ级高风险隧道,其断面大、埋深浅、围岩软弱、富水;本文依托兰新第二双线西宁隧道工程,结合隧道工程地质和水文特征,针对特殊湿陷性黄土采用双侧壁导坑法进行开挖。通过详细分析了施工的技术参数和步骤,并结合现场监控数据,保证了西宁隧道安全、该技术对以后同类隧道施工具有借鉴意义。The newly-built Lanxin Second Double-track Xining Tunnel is a Class Ⅰ high-risk tunnel of the China National Railway Corporation. It has a large section, shallow depth, weak surrounding rocks and rich water. Relying on the Lanxin Second Double-track Xining tunnel project,combining the geology and hydrological characteristics of tunnel engineering,this article uses the double sidewall pilot method for excavation of special collapsible loess, and makes detailed analysis of the technical parameters and procedures of the construction in combination with on-site monitoring data. At last the security of the Xining tunnel is ensured and the technology has implications for future similar tunnel construction.

关 键 词：浅埋 双侧壁导坑法 双侧壁导坑法优化 监控量测技术 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]