Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Hugh B. Thompson"'
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2677:1418-1429
The Transportation Technology Center, Inc. (TTCI) is working to build on and extend existing mechanics-based track geometry deterioration forecasting models to support improved safety and reliability of ballasted tracks. This paper demonstrates how t
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 237:65-79
This manuscript presents findings from an ongoing research study at Oklahoma State University studying different factors that affect vertical tie reaction forces in ballasted railroad tracks. A combined approach involving field instrumentation and nu
Publikováno v:
Transportation Infrastructure Geotechnology. 6:1-20
Recent research has shown a relationship between track geometry defects and track subsurface conditions as measured by Ground Penetrating Radar (GPR). This paper presents the results of a comprehensive study looking at the development of a probabilit
Publikováno v:
Construction and Building Materials. 155:1250-1255
This paper describes the use of Spectral Analysis of Surface Wave (SASW) for characterizing rail track ballast and foundation layers. Surface wave testing on a rail track is more complicated than on soil sites or pavements due to the presence of larg
Autor:
Hoe I. Ling, Christopher M. Hartsough, Hugh B. Thompson, Joseph W. Palese, Allan M. Zarembski
Publikováno v:
Transportation Infrastructure Geotechnology. 4:106-125
Ballast fouling and associated degradation of track geometry is a serious problem for railway systems in general and high-speed passenger rail systems in particular. This paper presents the results of a field test on Amtrak’s Northeast Corridor whe
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2607:54-61
Track support is necessary for reliable, resilient railroad track infrastructure. Ability to recover quickly from adversity is a hallmark of the railway industry, and ability to rapidly restore track to service is a main element contributing to resil
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2545:11-19
Rail seat deterioration (RSD) of concrete ties is manifested by the loss of concrete material in the rail seat area supporting the rail. This failure mode can lead to track that performs poorly and, in extreme cases, can result in the loss of rail cl
Autor:
Marcus S. Dersch, Mike McHenry, Matthew J. Greve, J. Riley Edwards, Christopher P. L. Barkan, Hugh B. Thompson, Theodore R. Sussmann
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2476:1-7
One of the more critical failure modes of concrete crossties in North America is the degradation of the concrete surface at the crosstie rail seat, also known as rail seat deterioration (RSD). Loss of material beneath the rail can lead to wide gage,
Autor:
Hugh B. Thompson, Michael E. Palese, Christopher M. Hartsough, Allan M. Zarembski, Joseph W. Palese
Publikováno v:
2017 Joint Rail Conference.
The support structure beneath railroad tracks may appear to be a simple layering of various materials, but rather, it is a complex system working together to distribute the load of passing trains. It is paramount that this structure maintain its desi