泥盆系板岩隧道穿越复杂构造富水节理密集带施工工法研究  

Study on Construction Method of Devonian Slate Stratum Tunnel through Dense Zone of Complex Structure Rich Water Joint

作　　者：刘倍利 张兆军 李亮亮 林旭东 周英烈 王斌 徐海岩 LIU Beili;ZHANG Zhaojun;LI Liangliang;LIN Xudong;ZHOU Yinglie;WANG Bin;XU Haiyan(Xi’an-chengdu Passenger Dedicated Line Shaanxi Co.,Ltd.,Xi’an Shaanxi 710043,China;China Railway Tunnel Group Co.,Ltd.,Guangzhou Guangdong 511458,China;Erchu Co.,Ltd.of China Railway Tunnel Group,Langfang Hebei 065201,China;School of Civil Engineering,Sichuan Agricultural University,Chengdu Sichuan 611830,China)

机构地区：[1]西成铁路客运专线陕西有限责任公司,陕西西安710043 [2]中铁隧道局集团有限公司,广东广州511458 [3]中铁隧道集团二处有限公司,河北廊坊065201 [4]四川农业大学土木工程学院,四川成都611830

出　　处：《交通节能与环保》2025年第1期257-263,共7页Transport Energy Conservation & Environmental Protection

摘　　要：为明确隧道穿越泥盆系地层复杂构造富水节理密集带的施工力学行为及适用工法,本文以桦树台隧道为依托,通过有限元模拟,系统对比了不同施工工法下的隧道围岩变形及支护受力特征。研究结果表明:(1)采用波兹曼函数可良好预测隧道拱顶沉降;(2)两台阶法在施工效率及经济性方面具有明显优势,可作为该地层条件的优选工法;(3)“两台阶法?+?超前小导管”的施工方案可有效保证实际工程的围岩变形控制需求及支护受力安全。To clarify the construction mechanics behavior and applicable construction method of tunnel crossing the complex water-rich joint dense zone of Devan formation,this paper takes Huashutai tunnel as the support,and systematically compares the deformation of tunnel surrounding rock and supporting force characteristics under different construction methods through finite element simulation.The results show that:(1)the tunnel arch settlement can be well predicted by Boltzmann function;(2)the two-step method has obvious advantages in construction efficiency and economy,and can be used as the optimal construction method for the formation conditions;(3)the construction scheme of“two-step method and advanced small conduit”can effectively ensure the deformation control requirements of surrounding rock and the safety of supporting force in actual projects.

关 键 词：山岭隧道 泥盆系板岩 施工工法 数值模拟 现场监测 

分 类 号：U455[建筑科学—桥梁与隧道工程]