Abstract
This article intends to present the pavement response analysis due to the 18-axles special truck used to transport a 400 tons generator parts. According to the DOH Declarations issued in 2005, DOH had issued the additional declarations containing special trucks or vehicles for overloaded transportation, proper axle and gross weights of each type of vehicles. However, the strain of the special truck must be less than the standard Thai truck (Truck25). The typical asphalt pavement is modeled and performed based on layered elastic analysis theory. The pavement is loaded with 18-axle truck. The maximum tensile strains under asphaltic concrete layer and compression strains on base, subbase, selected material and subgrade for special truck load are 234.4 ,618.1, 494.4, 422.9, and 772.3 με, respectively. However, the maximum compressive strains on selected material and subgrade of the special 18-axle truck was exceeded the standard Thai truck.
Published Version
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