The dynamic performance of a bridge-tunnel transition section with a deep buried pile-plank structure (DBPPS) for short transitions was studied. Field tests were performed, analyzing accelerations, velocities and displacements in the track and subgrade. Based on the field test results, the influences of the train types, driving direction and running speed on the dynamic response in the transition zone were investigated. A 3D finite element model considering vehicle-track-subgrade coupled interactions was presented, and the results from the model were compared with the measured responses. Based on the model, the distribution of the vertical dynamic stress in the subgrade was analyzed, and the running quality for the comfort of passengers on the train and the dynamic response along the DBPPS transition zone with alternative fillings in the subgrade, such as graded gravel and AB group filling (well graded coarse-grained soil with less than 30% fine-grained soil), were discussed. Comparatively, the graded gravel is recommended for the filling of base layer in the DBPPS subgrade.

研究了深埋桩板结构（DBPPS）短时过渡的桥梁隧道过渡段的动力性能。进行了现场测试，分析了轨道和路基的加速度，速度和位移。根据现场试验结果，研究了列车类型，行驶方向和行驶速度对过渡区动力响应的影响。提出了一种考虑车辆-轨道-路基耦合相互作用的3D有限元模型，并将该模型的结果与测得的响应进行了比较。基于该模型，分析了路基中的垂直动应力分布，并为列车上的乘客提供了舒适的行驶质量以及路基中DBPPS过渡带交替填充的动态响应，如分级砾石和AB组填充（分级良好的粗粒土，细粒土少于30％）进行了讨论。相比之下，建议使用分级砾石填充DBPPS路基的基础层。