摘要
依托下穿既有石太客运专线的浅埋大跨双连拱铁路隧道，利用midas-gts有限元软件对三种不同穿越既有客运专线的双连拱隧道施工工法进行模拟，分析既有线变位、新建隧道结构受力以及塑性区发展深度，提出合理的穿越方法，为类似工程提供借鉴。
Abstract： According to the engineering practics of railway double-arch tunnel of shallow and large span sites under the existing passenger railway line of Shijiazhuang to Taiyuan, numerical simulations to three different construction methods crossing under the existing line are carried out by midas-gts. A suitable method is provided by analyzing displacement of existing lines, structure stress of newly build tunnel and depth of plastic zone. All the work done by the paper gives a good reference to similar works.
出处
《河北交通职业技术学院学报》
2012年第2期51-55,68,共6页
Journal of Hebei Jiaotong Vocational and Technical College
基金
河北省自然科学基金项目“土质地层连拱式地铁车站隧道围岩压力与支护参数研究”。项目编号:E2012210011
关键词
客运专线
双连拱隧道
施工方法
下穿
浅埋
大跨
passenger railway line
double-arch tunnel
construction method
under crossing
shallow
large-span
