VISCOELASTIC APPROACH TO RUTTING IN FLEXIBLE PAVEMENTS

被引：50

作者：

COLLOP, AC

CEBON, D

HARDY, MSA

机构：

[1] Dept, Of Engrg., Univ. Of Cambridge, Cambridge

[2] Dept, Of Civ. Engrg., Univ. Of Edinburgh, Edinburgh

来源：

JOURNAL OF TRANSPORTATION ENGINEERING-ASCE | 1995年 / 121卷 / 01期

关键词：

Compaction - Elasticity - Failure (mechanical) - Mathematical models - Plastic deformation - Structural analysis - Structural loads - Technological forecasting - Viscoelasticity;

D O I：

10.1061/(ASCE)0733-947X(1995)121:1(82)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Permanent deformation (rutting) in bituminous pavements is treated as a linear viscoelastic flow phenomenon and is calculated using the linear elastic layered pavement model VESYS, reported by Kenis in 1978, supplied with equivalent viscous material properties. After an initial compaction period, the model predicts that the permanent deformation per wheel pass is proportional to the static axle load and inversely proportional to the vehicle speed. The predicted permanent deformation field is realistic and independent of the material elasticity. To determine the viscosity of asphalt mixtures operating under a wide range of environmental conditions, a simple new theoretical method is introduced which is based on routine test data and requires only one parameter to be fitted to experimental data. Published wheel-tracking tests were used to determine this parameter. Rut depth predictions are compared with experimental data from a recent full-scale test in France. Agreement is generally good, indicating the applicability of this linear rutting model.

引用

页码：82 / 93

页数：12

共 24 条

[1]

(1989)

[2]

Organization for Economic Cooperation and Development (OECD), (1991)

[3]

(1992)

[4]

Beckedahl H., Buseck H., Gerlach A., Straube A., Velske S., Effects of different pavement rehabilitations types on the development of rut depth and fatigue cracking, 7Th Int. Conf. On Asphalt Pavements, 1, (1992)

[5]

Bikerman J.J., The Science of Adhesive Joints, (1968)

[6]

Brown S.F., Material Characteristics for Analytical Pavement Design, pp. 41-92, (1978)

[7]

Brown S.F., Bell C.A., The validity of design procedures for the permanent deformation of asphalt pavements, 4Th Int. Conf. On the Structural Design of Asphalt Pavements, 1, (1977)

[8]

Collop A.C., Cebon D., Hardy M., A visco-elastic approach to rutting in flexible pavements, Tech. Rep. No. CUEDIC-MECHITR, 49, (1992)

[9]

Eisenmann J., Hilmer A., Influence of wheel load and inflation pressure on the rutting effect at theoretical investigations, 6Th Int. Conf. On the Structural Design of Asphalt Pavements, pp. 392-403, (1987)

[10]

George K.P., Husain S., Thickness design for flexible pavement: A probabilistic approach, Transp. Res. Rec, 1095, pp. 27-36, (1986)

← 1 2 3 →