摘要
地铁建设过程中遇到下穿既有铁路的情况时,如何选择适当的措施保证地铁下穿施工过程中不影响铁路正常运营是一个比较复杂的问题。结合盾构区间下穿既有铁路的工程实例,对盾构下穿既有铁路进行了三维数值模拟,从结构受力分析、变形计算等方面着手,研究盾构隧道下穿时对既有铁路的安全技术措施,以期对于类似的工程有一定的借鉴意义。
On the occasion of shield machine underpassing the existing railway of subway construction,it is a complex problem on how to select the suitable measures for ensuring the normal operation of railway.Combined with the practical project of the shield interval underpassing the existing railway,three dimensional numerical simulation is made,and safety technical measures for the existing railway during the process of shield machine underpassing tunnel is put forward from the aspects of structure stress analysis and deformation calculation and so on in order to provide a certain reference significance for similar projects.
出处
《铁道建筑技术》
2015年第7期46-49,89,共5页
Railway Construction Technology
关键词
地铁
盾构
下穿既有线
数值分析
subway
shield
underpassing the existing railway
numerical analysis
