Improving the performance of railway tracks through ballast interventions

被引:47
作者
Abadi, Taufan [1 ]
Le Pen, Louis [1 ]
Zervos, Antonis [1 ]
Powrie, William [1 ]
机构
[1] Univ Southampton, Infrastruct Res Grp, Univ Rd, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
Ballast grading; two-layered ballast; re-profiled shoulder slope; ballast settlement; RAILROAD BALLAST; DEFORMATION; PERSPECTIVE; SYSTEM; TESTS;
D O I
10.1177/0954409716671545
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Maintenance and eventual renewal of a ballasted track constitute major operational costs for a railway network. Thus, significant benefits would accrue from a more robust track design having a longer service life and reduced maintenance requirements. This paper presents the results from a laboratory study and explores the potential to achieve this through improving the ballast grading and reducing the ballast shoulder slope. Cyclic loading tests were carried out on a section of track representing one sleeper bay in plane strain, in the Southampton Railway Testing Facility. A cyclic load representing a 20 tonne axle load was applied at 3Hz for at least 3 million cycles, during which measurements of permanent and resilient vertical deflection were made. Certain interventions are found to result in lower rates of permanent settlement and different resilient ranges of movement. Supplementary measurements to determine longitudinal pressure, ballast breakage and attrition, and shoulder slope movement were used to explore the mechanisms responsible for the observed improvements in ballast bed performance. It is concluded that the use of finer ballast gradings and a shallower shoulder slope have the potential to reduce maintenance requirements.
引用
收藏
页码:337 / 355
页数:19
相关论文
共 55 条
  • [1] Abadi T., 2015, INT J RAILWAY TECHNO, V4, P45, DOI [10.4203/ijrt.4.2.3, DOI 10.4203/IJRT.4.2.3]
  • [2] Abadi T., 2015, THESIS
  • [3] Model testing of two-layer railway track ballast
    Anderson, WF
    Key, AJ
    [J]. JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 2000, 126 (04) : 317 - 323
  • [4] [Anonymous], 2009, RAILCORP ENG SPEC SP
  • [5] [Anonymous], 2009, GCRT5021 RAIL SAF ST
  • [6] [Anonymous], 1927, 2 INT C APPL MECH ZU
  • [7] AREMA, 2012, AM RAILW ENG MAINT O
  • [8] AREMA, 2000, AREMA MAN RAILW ENG
  • [9] Bhandari AR, 2012, GEOTECH TEST J, V35, P209, DOI 10.1520/GTJ103821
  • [10] Monitoring the dynamic displacements of railway track
    Bowness, D.
    Lock, A. C.
    Powrie, W.
    Priest, J. A.
    Richards, D. J.
    [J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT, 2007, 221 (01) : 13 - 22