A flexible pavement carries a static wheel load of 5 kN on a circular area having a radius of 150 mm above the pavement. The allowable bearing stress on the base is 0.42 MPa. Determine the required thickness using cone pressure distribution method. Round up the final answer in 10-mm interval.

A flexible pavement carries a static wheel load of 5 kN on a circular area having a radius of 150 mm above the pavement. The allowable bearing stress on the base is 0.42 MPa. Determine the required thickness using cone pressure distribution method. Round up the final answer in 10-mm interval.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter20: Design Of Rigid Pavements

Section: Chapter Questions

Problem 17P

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Concept explainers

Design of pavements

Pavement is a structure that is made up of different layers such as sub-base course layer, base course layer, binder course, and a surface course formed with different materials such as gravel, above the subgrade soil constructed to act as a path or carriageway enabling the movement of vehicles. The surface of the pavement should possess characteristics such as adequate friction, light reflection, and drainage. The pavements are classified based on structural design into rigid pavements, flexible pavements, composite pavements, and unpaved pavements. The process of determining a suitable pavement type, its constituent layers, and its thickness is called pavement design.

Question

A flexible pavement carries a
static wheel load of 5 kN on a
circular area having a radius of
150 mm above the pavement.
The allowable bearing stress on
the base is 0.42 MPa.
Determine the required
thickness using cone pressure
distribution method. Round up
the final answer in 10-mm
interval.

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