列车动荷载下桩-土动力作用研究

结合某紧邻铁路的滑坡抗滑桩治理项目,进行现场列车振动荷载实测,利用有限元技术对列车动荷载作用下的抗滑桩-土进行动力响应分析,得出边坡各个考察点的位移、速度、加速度随输入动荷载的变化规律,据此来研究列车动荷载作用下单桩-土的动力作用。研究结果对列车动荷载作用下抗滑桩治理滑坡工程的长期安全性和耐久性分析评价提供重要参考。

Research on soil-pile dynamic interaction under dynamic load of train

Combining with the project of slope treated by anti-pile,collecting the vibration load of train with time in situ.The rules about the magnitude of the displacement,velocity and acceleration of the monitor points are obtained.The dynamic behavior of pile-soil is studied.The results are useful for the long-term safety and durability design of landslide treated by anti-slide pile under cyclic load.