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将列车和路基视为超载,分析合肥-福州客专对邻近矿区主竖井衬砌的静力影响;根据动力学理论建立考虑山体、竖井、合福客专的数值模型,分析模型的自振频率和振型特性,研究列车对竖井衬砌的位移、应力的影响;并提出竖井回填方案.结果表明,合福客专对竖井的影响范围可达到井口下方的260 m;列车振动主要在竖井中产生竖向位移沉降,其次为竖向隆起;在竖井顶部靠近山表的位置,列车荷载引起的附加动位移和动应力都较大;主井回填采用自下而上的方式进行.
The train and embankment are regarded as overloaded. The static influence of Hefei-Fuzhou Passenger Train on the main shaft lining of the adjacent mining area is analyzed. Based on the dynamic theory, a numerical model considering the mountain, shaft and Hefei specialists is established. The natural frequency and The effect of train on the displacement and stress of the shaft lining is researched and the scheme of shaft backfilling is put forward.The results show that the range of influence of the shaft of the shaft to the shaft can reach 260m below the shaft mouth and the vibration of the train mainly produces vertical The settlement is vertical to the displacement, followed by the vertical uplift. At the top of the shaft close to the surface of the mountain, additional dynamic displacement and dynamic stress caused by the train load are larger. The backfilling of the main shaft is carried out in a bottom-up manner.