Heavy duty pavements are pavements subjected to the extremely heavy wheel loads associated with freight handling vehicles in industrial facilities, such as container terminals and warehouses. Heavy duty pavement need to handle many types of freight handling vehicles, such as forklifts, straddle carriers, gantry cranes and side loaders. The purpose of pavement design is to determine the number, material composition and thickness of different layers within a pavement structure required to accommodate a given loading condition.

1. Heavy Duty Pavement Design Dr Wei Liu Senior Engineer Fugro-PMS Ltd, New Zealand

22. Layer 1 HMA E 1 Layer 3 Subgrade Soil E 3 h 1 h 2 No bottom boundary, assume soil goes on infinitely. No horizontal boundary, assume layers extend infinitely. Tire has a total load P, spread over a circular area with a radius of a, resulting in a contact pressure of p. Pavement Reactions Deflection (  ) Tensile Strain (  t ) Compressive Strain (  v ) Layered Elastic Model Representation of a Pavement Layer 2 Granular Base E 2

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