Railway ground vibration prediction using a controlled source; development of an empirical method predicting ground borne vibrations using a falling weight
| dc.contributor.author | Hultén, Hugo | |
| dc.contributor.department | Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE) | sv |
| dc.contributor.department | Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE) | en |
| dc.contributor.examiner | Forssén, Jens | |
| dc.contributor.supervisor | Torres, Jorge | |
| dc.date.accessioned | 2024-11-15T08:45:56Z | |
| dc.date.available | 2024-11-15T08:45:56Z | |
| dc.date.issued | 2024 | |
| dc.date.submitted | ||
| dc.description.abstract | Rail transport today plays a major role in sustainable transportation. But ground vibrations from trains and trams create unsustainable environments that lead to irritation and affect people’s sleep. Several methods are currently used to predict ground vibrations. These methods are used at different stages of railway design. Some are more accurate but costly, while others are simpler but less accurate. In this thesis, a method for predicting ground vibrations from railways is developed. The method consists of exciting the ground with a controlled source. The controlled source used is a falling weight. The method is compared with measurements on maximum weighted vibration level for both trains and trams and for different ground conditions. To verify the measurements, a numerical analysis is also performed. Finally, a model is developed using the falling weight ground vibration measurements to model a point source or a line source of finite length. Comparisons between falling weight and rail vehicles show that the frequency spectrum differs and that the model has little resemblance with the mean value of the ground vibrations.The decay with distance of the maximum vibration level is shown to be similar to that of the rail ground vibrations when using the point source model rather than modelling a finite line source. | |
| dc.identifier.coursecode | ACEX30 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.12380/308985 | |
| dc.language.iso | eng | |
| dc.setspec.uppsok | Technology | |
| dc.subject | Tram, Train, Ground vibration, Model, Controlled source, Falling weight, Empirical method, COMSOL | |
| dc.title | Railway ground vibration prediction using a controlled source; development of an empirical method predicting ground borne vibrations using a falling weight | |
| dc.type.degree | Examensarbete för masterexamen | sv |
| dc.type.degree | Master's Thesis | en |
| dc.type.uppsok | H | |
| local.programme | Sound and vibration (MPSOV), MSc |