Abstract: The simplified vibration model of the aircraft-pothole based on 1 /4 double degree of freedom vibration model is established． The allowable depth calculation method of the pothole is studied from passengers comfort，pavement bearing capacity and likelihood to produce leaps and bounds． It is found that frame vibration acceleration increases with the increase of the pothole depth，while it decreases with the increase of velocity; dynamic load coefficient increases with the increase of the pothole depth，while it decreases with the increase of velocity． For a practical aircraft，the allowable depth values for the potholes located on different runway positions are obtained by the proposed method，which provides a theoretical reference for the airport authority in estimating the operation applicability of distress runway．

Key words: airfield engineering, required depth value, dynamic analysis, pothole, vibration acceleration, dynamic load coefficient

摘要： 基于 1/4 双自由度振动模型，建立了飞机-坑槽振动简化模型，从乘客舒适度、道面结构承载力及高速滑跑时可能发生跳跃等 3 方面，研究了道面坑槽的许可深度计算方法。结果表明: 机身振动加速度随着坑槽深度增大而增大，随着滑跑速度增大而减小; 动载系数随着坑槽深度增大而增大，随着滑跑速度的增大而减小。实例应用得到了跑道不同部位出现坑槽的许可深度值，为机场当局对破损跑道的运行适用性判断提供理论参考。

关键词: 机场工程, 深度许可值, 动力分析, 坑槽, 振动加速度, 动荷系数