Tie-ballast interaction.

Details

• Alternative Title:
  Tie-ballast interaction : technical summary.
• Creators:
  Rose, Jerry G. ; Souleyrette, Reginald R. ; McHenry, Mike ; Greenwell, Travis ; Peng, Xu ; Brown, Michael ; LoPresti, Joseph
• Corporate Creators:
  National University Rail Center (U.S.)
• Subject/TRT Terms:
  • Railroad ties
  • Ballast crib
  • Ballast (Railroads)
  • Bearing capacity
  • Railroad tracks
  • Tie-ballast interaction
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  National University Rail Center (U.S.)
• Abstract:
  Improvements in railroad efficiency in the future may likely require higher passenger train speeds and heavier freight axle loads. As the demand for more efficient rail transportation grows, so does the need for higher performance and lower maintenance track. To attain higher performing track, a better understanding of the track's behavior and the interaction of its components are required. An important component of the conventional railroad track structure is the magnitudes and distribution of interfacial pressures between the ballast and ties. This interface impacts many functions of both the tie and the ballast including initiating pressure distribution into the ballast layer, allowing for track geometry adjustment through tamping, and providing vertical, lateral, and longitudinal track stability. Common track issues such as ballast degradation, tie degradation, tie center-binding, and differential track settlement are greatly impacted by the ballast-tie interface pressure level.
• Format:
  PDF
• Funding:
  Grant Number: DTRT12-G-UTC18 ; NURail Project IDs: NURAIL2013-UKY-R05 ; NURAIL2013-UKY-R07
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/30854/dot_30854_DS1.pdf
• File Type:
  [PDF - 6.61 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:f9daf4b2046ea0fdaf718a27d4403f072837d61062c309ab5ed230a47180f2b7