Behaviour of ballasted track during high speed train passage

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Ballast migration investigation: instrument layout Vertical, lateral and longitudinal sleeper velocities measured using geophones High Speed Track Railways Day - 15 February 2011
Measured sleeper displacements Vertical displacement of high rail end of sleeper is about 2.2 times that of low rail end High Speed Track Railways Day - 15 February 2011
Page 1 and 2: Behaviour of ballasted track during
Page 3 and 4: Background and Aims High Speed Trac
Page 5 and 6: Aims • To assess the effects of t
Page 7 and 8: Method • Dynamic, 2D finite eleme
Page 9 and 10: Typical results: deflections High S
Page 11 and 12: Field monitoring: methods High Spee
Page 13 and 14: Measurement techniques: geophones G
Page 15 and 16: Comparison: PIV and geophone data D
Page 17 and 18: Effect of train speed: HS1 • Stan
Page 19 and 20: Calculate subgrade modulus from Bea
Page 21 and 22: Track modulus vs displacement for a
Page 23 and 24: Increase in dynamic load with speed
Page 25: High Speed Track Railways Day - 15
Page 29 and 30: Train Run Inner rail δ mm High Spe
Page 31 and 32: Proposed mechanism During loading s
Page 33 and 34: Ballast issues (2) Ballast flight (
Page 35 and 36: Background • During passage of a
Page 37 and 38: Measurements • Geophones to measu
Page 39 and 40: Instrumentation view High Speed Tra
Page 41 and 42: Sleeper displacements - vertical Hi
Page 43 and 44: Air turbulence: visual observation
Page 45 and 46: Ballast flight: findings • Sleepe
Page 47 and 48: Conclusions • Stresses and deflec
Page 49 and 50: Journal papers (2) • A full-scale
Page 51: High Speed Track Railways Day - 15

Behaviour of ballasted track during high speed train passage

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