Prediction of Ground Vibration from Railways.

摘要

Measured vibration levels from trains have been used to determine the distance dependence of ground-borne vibrations and a reference vibration level for each train type. Using the results of a Norwegian study, an empirical prediction formula has been made. Field measurements were carried out at two sites in southwest Sweden. Three 3-directional accelerometers were used at three different distances from the middle of the railway track. All the accelerometers were mounted 50 cm below the ground surface. Each accelerometer for the three directional accelerometers was mounted to represent one direction. The signals generated due to the passing trains were recorded by a Digital Recorder (DAT). Due to the fact that this DAT has eight input channels and we used three 3-directional accelerometers, which means nine accelerometers, one channel had to be omitted.