Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Fiseha Nega Birhane"'
Publikováno v:
Sensors, Vol 21, Iss 20, p 6875 (2021)
The condition of the ballast is a critical factor affecting the riding quality and the performance of a track. Fouled ballast can accelerate track irregularities, which results in frequent ballast maintenance requirements. Severe fouling of the balla
Externí odkaz:
https://doaj.org/article/68aca6863fd24f43afffb26bcf0394b6
Publikováno v:
Applied Sciences, Vol 10, Iss 21, p 7754 (2020)
Long-span prestressed concrete (PSC) bridges often suffer excessive deflection during their service lives. The nonuniform shrinkage strains of concrete caused by uneven moisture distributions can induce significant additional deflections, when combin
Externí odkaz:
https://doaj.org/article/785797c5bbec40ec955f7929f0925b06
Publikováno v:
Journal of the Korean Society for Railway. 23:269-278
Insufficient ballast depth and fouled ballast have been pointed to as causes of settlement and track irregularity. Nondestructive testing methods such as Ground Penetrating Radar (GPR) are a preferred alternative to efficiently evaluate thickness and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b408d57a7fded309abd83860cec9342
https://doi.org/10.7782/jksr.2020.23.3.269
https://doi.org/10.7782/jksr.2020.23.3.269