Effects of Supersingle Tire Loadings on Pavements

Due to their efficiency and economy, supersingle tires have gradually been replacing conventional dual tires in the trucking industry. According to recent studies, supersingle tires generate much higher vertical contact stresses than do conventional dual tires, resulting in larger deformations and more severe damage to the subgrade. In order to better assess the larger stresses generated by supersingle tires and their effect on the subgrade, analyses are done taking into account soil plasticity. In this paper, the effects of supersingle tires on subgrades for typical road cross sections are investigated using plane-strain two-dimensional and three-dimensional static and dynamic finite element analyses. The analyses focus on the sand and clay subgrades rather than on asphalt and base layers. The subgrades are modeled as saturated in order to investigate the effects of porewater pressures under the most severe conditions. The analyses suggest that current flexible pavement design methods are unconservative for the increased loads imposed by supersingle tires on the pavement system.

[1]  Jatinder Sharma,et al.  DEVELOPMENT OF RIGID AND FLEXIBLE PAVEMENT LOAD EQUIVALENCY FACTORS FOR VARIOUS WIDTHS OF SINGLE TIRES , 1983 .

[2]  B. Hardin,et al.  VIBRATION MODULUS OF NORMALLY CONSOLIDATED CLAY , 1968 .

[3]  R. Cook,et al.  Concepts and Applications of Finite Element Analysis , 1974 .

[4]  Tom Scullion,et al.  ESTIMATING DAMAGE EFFECTS OF DUAL VERSUS WIDE BASE TIRES WITH MULTIDEPTH DEFLECTOMETERS , 1992 .

[5]  Sameh Zaghloul,et al.  Guidelines for permitting overloads - part I: effect of overloaded vehicles on the Indiana highway network , 1994 .

[6]  Peter E. Sebaaly,et al.  Investigation of Asphalt Concrete Layer Strains from Wide-Base Tires , 1999 .

[7]  Pedro Yap.  A Comparative Study of the Effect of Truck Tire Types on Road Contact Pressures , 1988 .

[8]  A. G. Altschaeffl,et al.  RESILIENT CHARACTERISTICS OF DUNE SAND , 1995 .

[9]  Walter P Kilareski.  HEAVY VEHICLE EVALUATION FOR OVERLOAD PERMITS , 1989 .

[10]  R Bonaquist.  An assessment of the increased damage potential of wide based single tires , 1992 .

[11]  E G Fernando,et al.  DEVELOPMENT OF A PROCEDURE FOR THE STRUCTURAL EVALUATION OF SUPERHEAVY LOAD ROUTES , 1995 .

[12]  Anand J. Puppala,et al.  RESILIENT PROPERTIES OF LABORATORY COMPACTED SUBGRADE SOILS , 1995 .

[13]  Matti Huhtala,et al.  EFFECTS OF TIRES AND TIRE PRESSURES ON ROAD PAVEMENTS , 1989 .

[14]  Yang H. Huang,et al.  Pavement Analysis and Design , 1997 .

[15]  Dario Perdomo,et al.  THEORETICAL ANALYSIS OF THE EFFECTS OF WIDE-BASE TIRES ON FLEXIBLE PAVEMENTS USING CIRCLY , 1993 .

[16]  F. H. Kulhawy,et al.  K-OCR relationships in soil : J Geotech Engng Div ASCE, V108, NGT6, June 1982, P851–872 , 1983 .

[17]  Harry G. Poulos,et al.  Stress deformation and strength characteristics , 1977 .

[18]  Reynaldo Roque,et al.  Measurement of Contact Stresses for Different Truck Tire Types To Evaluate Their Influence on Near-Surface Cracking and Rutting , 1999 .

[19]  Vishnu Diyaljee,et al.  REPETITIVE LOAD DEFORMATION OF COHESIONLESS SOIL , 1982 .

[20]  W Ronald Hudson,et al.  EXPERIMENTAL DETERMINATION OF PRESSURE DISTRIBUTION OF TRUCK TIRE-PAVEMENT CONTACT , 1986 .

[21]  M De Beer,et al.  DETERMINATION OF PNEUMATIC TYRE/PAVEMENT INTERFACE CONTACT STRESSES UNDER MOVING LOADS AND SOME EFFECTS ON PAVEMENTS WITH THIN ASPHALT SURFACING LAYERS , 1997 .

[22]  Peter E. Sebaaly,et al.  Pavement Strain from Moving Dynamic 3D Load Distribution , 1998 .

[23]  P. L. Bransby,et al.  THE MECHANICS OF SOILS, AN INTRODUCTION TO CRITICAL STATE SOIL MECHANICS , 1987 .

[24]  C. P. Wroth,et al.  The interpretation of in situ soil tests , 1984 .

[25]  Shmuel L. Weissman.  Influence of Tire-Pavement Contact Stress Distribution on Development of Distress Mechanisms in Pavements , 1999 .

[26]  Rodrigo Salgado,et al.  SHEAR STRENGTH AND STIFFNESS OF SILTY SAND , 2000 .

[27]  C A Bell,et al.  IMPACT OF HIGH-PRESSURE TIRES AND SINGLE-TIRED AXLES IN OREGON , 1996 .

[28]  J. T. Tielking.  Force Transmissibility of Heavy Truck Tires , 1994 .

[29]  Wai-Fah Chen,et al.  Constitutive equations for engineering materials , 1994 .