(1) The target conversion thickness of asphalt concrete pavement structure is calculated by the following equation. <br> <br>Among them: <br>T: target conversion thickness (cm) <br>N: the number of wheel contacts that lead to fatigue failure <br>CBR: the design of the roadbed CBR <br>Note: when the design CBR is calculated, the standard thickness of the road bottom should be 1mm. Note that it is not applicable if the compressive stress generated on the lower surface is small enough.
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