Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 2 of 2 for “"Multidepth Deflectometers"”.
-
Track model for predicting dynamic responses of railroad bridge approaches
… Corridor lines near Chester, Pennsylvania. Multidepth Deflectometers (MDDs) were installed at the selected bridge approaches to monitor individual layer deformations of track substructure layers. Besides MDDs, strain gauges were also mounted on the rail at the instrumented sites to measure …
-
Analyses and modeling of track transition site responses from instrumented bridge approaches
… mechanisms associated with the bump phenomenon. Multidepth deflectometers (MDDs) and rail strain gauges were installed as field sensors at three different bridge approaches on Amtrak's Northeast Corridor (NEC). The MDD sensors were used to collect transient vertical displacements and settlement …