【摘要】 铁路隧道施工过程的有限元模拟分析中，其参数的选择直接决定了计算结果的可靠度。结合柴家坡既有隧道旁新建铁路隧道施工过程有限元分析的算例，分析参数选择决定计算结果的某种规律性，以便为同类问题今后的研究提供一种参数选择的参考。更多还原

【Abstract】 The coefficient is very important to the finite element simulation and the analysis of a railway tunnels construction process. It even determines thc reliability of calculate results. This paper took example of a new tunnels construction process nearty Chaijiapo tunnel and tried to get the regulars which act on the calculate results by coefficient choosing. It provided a valuable reference to study the same kind of problems later.更多还原