With the model, the perpendicular basic frequency of different type underground gallery bridges are calculated and their empirical formula in normal condition has been obtained.

• 运用有限元计算模型,计算了各种类型地道桥的竖向基频,并提出正常状态地道桥竖向基频的经验表达式,为估算正常状态地道桥基频提供一种参考方法。