赵晓勇
    （中铁第一勘察设计院集团有限公司，西安710043）

[摘要] 铁路隧道按荷载-结构模式设计计算时，主要影响参数有弹性抗力系数、水压力、侧压力系数、起拱角等。采用ANSYS10.0有限元软件，在铁路隧道规范规定的参数范围内，对这些参数的变化进行计算对比，分析其对计算结果的影响程度，供今后计算中相应的参数取值参考。
[关键词] 荷载-结构法；弹性抗力系数；水压力；侧压力系数；起拱角

Analysis of the main influence parameters for load-structure method calculation of railway tunnel
Zhao Xiaoyong
( China Railway First Survey& Design Institute Group Co., Ltd., Xi'an 710043, China)

Abstract: To design and calculate the railway tunnel by load-structure mode, the main influence parameters include elastic resistance coefficient, water pressure, lateral pressure coefficient, arch camber angle etc. Using the ANSYS10.0 finite element software, in the range of parameters that is allowed by the code of railway tunnel, through comparisons and mathematical analysis when these change, these parameters' influences on structure calculation are explored, which can provide reference for the calculation of similar works in the further.
Keywords: load-structure method; elastic reaction coefficient; water pressure; lateral pressure coefficient; arch camber angle