GATE CE 2022 Set 1 — Question 65
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Transportation Engineering → Pavement Design → Equivalent Single Wheel Load
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Question
For the dual-wheel carrying assembly shown in the figure, is the load on each wheel, is the radius of the contact area of the wheel, is the spacing between the wheels, and is the clear distance between the wheels. Assuming that the ground is an elastic, homogeneous, and isotropic half space, the ratio of Equivalent Single Wheel Load (ESWL) at depth to the ESWL at depth is __________.
(round off to one decimal place)(Consider the influence angle to be for the linear dispersion of stress with depth)
(round off to one decimal place)(Consider the influence angle to be for the linear dispersion of stress with depth)
Correct answer
0.5 to 0.5
Solution
According to the graphical method for determining the Equivalent Single Wheel Load (ESWL):
1.At depths , the stress from the two wheels does not overlap significantly. Therefore, the ESWL is equal to the load of a single wheel, .
2.At depths , the two wheels act as a single combined load. Therefore, the ESWL is equal to the total load of both wheels, .
3.Between depths and , the ESWL varies linearly on a log-log scale.
The question asks for the ratio of ESWL at to the ESWL at :Thus, the ratio is 0.5.Continue learning with Success Tracker
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