The next three questions (MCQS) are based on the following information: The design structure number for the incoming traffic (loaded trucks) to a coal-fired power plant is 5.18, and for the outgoing traffic (empty trucks) is 3.05 based on the design ESAL. The design engineer selected the following material for road construction: • A 12-inch-thick sand sub base with a layer coefficient of 0.10 • A 6-inch gravel base with a layer coefficient of 0.13 • An asphalt concrete surface layer with a layer coefficient of 0.40 The quality of drainage is good, and the moisture coefficients for base and subbase are 1.0.

The next three questions (MCQS) are based on the following information: The design structure number for the incoming traffic (loaded trucks) to a coal-fired power plant is 5.18, and for the outgoing traffic (empty trucks) is 3.05 based on the design ESAL. The design engineer selected the following material for road construction: • A 12-inch-thick sand sub base with a layer coefficient of 0.10 • A 6-inch gravel base with a layer coefficient of 0.13 • An asphalt concrete surface layer with a layer coefficient of 0.40 The quality of drainage is good, and the moisture coefficients for base and subbase are 1.0.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

For the material data given above, what is the required gravel thickness that will produce the same
structure number as a one-inch-thick asphalt concrete layer?
1 in.
3.1 in
6 in.
0.33 in.

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