顶进法施工时铁路便梁安全性试验研究

Research on the safety of railway auxiliary girder when jacking method is used in construction

为保证行车安全,对列车通过铁路施工便梁进行跟踪测试,测试限速阶段、试验车测试阶段和监测阶段中便梁的固有频率、动挠度和冲击系数,根据试验结果,对行车安全进行评估,并全过程监控行车安全,为以后铁路便梁施工时提高列车限速具有重要意义。

To guarantee the safe rurming of trains, a tracking test is carried out when a train is running through the railway construction auxiliary girder. The test is to get the natural frequency, dynamic harass degree, impact coefficient impacting ratio of auxiliary girder in and after the test, assess the safety of train running and monitor the safety in the whole process of train running, which is significant to increase the limited speed of trains during railway construction.