石太铁路客运专线李虎坪隧道CRD法施工技术

Construction Technique for Lihuping Tunnel of Shijiazhuang-Taiyuan Railway Passenger Dedicated Line with CRD Method

研究目的:以石太铁路客运专线李虎坪隧道为例,研究客运专线双线大断面黄土隧道控制测量、开挖支护、监控量测、二次衬砌等施工技术和施工特点。研究结果:研究表明,CRD施工方法适用于Ⅴ级黄土双线大断面隧道施工,施工进度快,控制地层变形好,施工安全度高。

Research purposes:Taking Lihuping Tunnel of Shijiazhuang-Taiyuan railway passenger dedicated line as an example,the researches are done on the construction techniques and their characteristics of the control survey,excavation support,control measurement and secondary lining of double line large sectional loess tunnel of railway passenger dedicated line. Research results:The researches show CRD construction method is adaptive to the construction of V grade double line loess tunnel with rapid process,good con...