TY - GEN
T1 - Use of 3-dimensional discrete element model to examine aggregate layer particle movement due to load wander
AU - Donovan, P. R.
AU - Tutumluer, E.
AU - Huang, H.
PY - 2009
Y1 - 2009
N2 - Many large aircraft have similar wheel loads and tire pressures but different gear configurations. Individual aircraft also have slightly different transverse travel variation (wander) depending on factors such as the width of the pavement, the time of day, and type of operation (landing, takeoff, or taxiing). As a result, aircraft wheel loads are commonly applied on relatively wide traffic lanes. In recent full-scale pavement test studies at the US Federal Aviation Administration's National Airport Pavement Test Facility, a complete load wander cycle was applied sequentially but not randomly to realistically apply traffic loading and investigate effects of offset wheel loads on performance. Each pass at a different o ffset was observed to cause particle movement and rearrangement in the unbound aggregate base and subbase layers of the flexible pavement test sections. This paper aims to demonstrate how a wheel load can cause particle movement in an unbound aggregate layer using a simplified 3-dimensional discrete element model.
AB - Many large aircraft have similar wheel loads and tire pressures but different gear configurations. Individual aircraft also have slightly different transverse travel variation (wander) depending on factors such as the width of the pavement, the time of day, and type of operation (landing, takeoff, or taxiing). As a result, aircraft wheel loads are commonly applied on relatively wide traffic lanes. In recent full-scale pavement test studies at the US Federal Aviation Administration's National Airport Pavement Test Facility, a complete load wander cycle was applied sequentially but not randomly to realistically apply traffic loading and investigate effects of offset wheel loads on performance. Each pass at a different o ffset was observed to cause particle movement and rearrangement in the unbound aggregate base and subbase layers of the flexible pavement test sections. This paper aims to demonstrate how a wheel load can cause particle movement in an unbound aggregate layer using a simplified 3-dimensional discrete element model.
UR - http://www.scopus.com/inward/record.url?scp=84859926094&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859926094&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84859926094
SN - 9780415804325
T3 - Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields
SP - 619
EP - 630
BT - Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields
T2 - 8th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCR2A'09
Y2 - 29 June 2009 through 2 July 2009
ER -