摘要
川藏铁路具有高海拔、高寒、地质条件复杂、超长隧道众多、隧道埋深大、辅助坑道设置条件差和环境保护要求高等特点,隧道工程的顺利推进将是川藏铁路成功修建的关键因素之一,而众多的长大隧道全部采用钻爆法施工也将面临巨大挑战,在川藏铁路推广扩大TBM应用应更符合隧道发展的预期,但类似环境条件下TBM应用案例并不多。为提升TBM在川藏铁路隧道的适应性并推进其应用,结合川藏铁路隧道的建设总体要求、地质条件、环境特征和各类型TBM特点,充分吸收前期相关各方大量阶段性调查研究成果,对川藏铁路隧道TBM的应用进行了认真的系统分析与深入对比,综合性给出了川藏铁路隧道TBM的选择原则、适应性和选型结论,认为现阶段推荐的4座TBM隧道和敞开式TBM选型是合理的。另外,针对川藏铁路隧道的重大不良地质,对TBM的针对性设计、施工措施和下一步工程推进等方面提出了一些建议和思考。
Located in the high-altitude alpine region,Sichuan-Tibet railway is featured by complex geological conditions,numerous super-long tunnels,large burial depth,poor setting conditions for auxiliary tunnels and high environmental protection requirements.Smooth tunnel construction is one of the key factors for successful construction of Sichuan-Tibet railway.According to the preliminary investigation and research,construction of such a great number of super-long tunnels by the drilling and blasting method can be very challenging.It is believed that TBM tunneling is a better choice for construction of long tunnels for Sichuan-Tibet railway in the high-altitude alpine region.However,TBMs have seldom been applied in similar conditions.By considering the geological conditions,environmental characteristics and general requirements of Sichuan-Tibet railway Tunnels,and the advantages and disadvantages of various types of TBMs,systematic analysis and in-depth comparison are conducted for application of TBMs in construction of Sichuan-Tibet railway tunnels.The basic principles of TBM selection and TBM adaptability are discussed.Some suggestions and thoughts are put forward on targeted TBM design,construction measures and project progress,aiming at the unfavorable geology along Sichuan-Tibet railway.
作者
杜闯东
周路军
朵生君
贺飞
DU Chuangdong;ZHOU Lujun;DUO Shengjun;HE Fei(China Railway Tunnel Group Co.,Ltd.,Guangzhou 511457,Guangdong,China;China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,Sichuan,China;China Railway First Survey and Design Institute Group Co.,Ltd.,Xi′an 710043,Shaanxi,China;China Railway Engineering Equipment Group Co.,Ltd.,Zhengzhou 450016,Henan,China)
出处
《隧道建设（中英文）》
CSCD
北大核心
2021年第6期897-912,I0023-I0038,共32页
Tunnel Construction
关键词
川藏铁路隧道
TBM
适应性
选型
不良地质对策
Sichuan-Tibet railway tunnels
TBM
adaptability
type selection
measures for unfavorable geology
