摘要
结合内蒙古准格尔旗境内唐家会煤矿铁路专用线以隧道型式上跨呼准二线东孔兑隧道的工程实例,采用经验法和有限元数值模拟法,分析了新建隧道在施工和运营期间对既有隧道结构的安全性的影响。结果表明:新建隧道对既有隧道影响在安全范围之内,既有铁路隧道衬砌结构能满足安全需要,可为类似工程的修建提供了可靠的参考依据。
Combined with the engineering example of Tangjiahui Mine Railway Special Line in the form of tunnel overpass- ing Dongkongdui Tunnel of Hohhot-Jungar Second-line in Jungar Banner of Inner Mongolia, this paper analyzes the influ- ence of the newly-buih tunnel which is under construction and operation on the safety of the existing tunnel structures by u- sing empirical method and finite element method. The results show that the effect of the newly-built tunnel on the existing tunnel is in a safe range, which ean meet the safety requirement for the lining structure of the existing railway tunnel and provide a reliable reference for the construction of similar projects.
出处
《铁道建筑技术》
2016年第1期41-46,共6页
Railway Construction Technology
基金
中铁第五勘察设计院集团有限公司科技研发项目(Y2012019)
关键词
既有铁路隧道
上跨
影响分析
有限元法
安全评估
the existing railway tunnel
overpass
influence analysis
finite element method
safety assessment
