大西客运专线大断面黄土隧道监控量测非接触量测技术应用  

Monitoring and Non-contact Measurement Technology Adopted for a Large Cross-section Loess Tunnel on Datong-Xi'an PDL

作　　者：张海刚 

机构地区：[1]中铁十一局集团第五工程有限公司,重庆400037

出　　处：《铁道标准设计》2011年第B12期140-143,共4页Railway Standard Design

摘　　要：结合大西客运专线大断面黄土隧道——马家庄隧道工程实例,针对大断面黄土隧道的特点和采用的开挖方法,克服了传统围岩量测方法的缺点,采用非接触量测方法并在马家庄隧道施工中得到了有效的应用。重点介绍非接触量测的方法,量测要求,三台阶七步开挖法测点的布置方法,并且对量测数据进行了处理和分析,初步掌握了黄土隧道三台阶七步开挖法围岩的位移变化规律,对类似工程施工有较强的借鉴意义。With the large cross-section Majiazhuang loess tunnel on Daton-Xi＇an PDL as the example, according to the characteristics of large cross-section loess tunnel and excavation method involved, non-contact measurement of surrounding rocks was adopted to overcome the defects of traditional measurement methods. The paper introduces the measurement method, non-contact measurement requirements, arragement of measuring points in three-bench-seven-step excavation method and processing and analysis of measured data. The regulation of surrounding rock displacement variation has been mastered for the loess tunnel three-bench-seven-step excavation method, which can be taken for similar engineering projects＇ reference.

关 键 词：客运专线 大断面 黄土隧道 非接触量测 应用 分析 

分 类 号：U452.13[建筑科学—桥梁与隧道工程]