回弹模量和承载力的关系

回弹模量是指路基，路面及筑路材料在荷载作用下产生的应力与其相应的回弹应变的比值。而承载力必须要大于作用于路基上的应力才能满足要求。那么我想知道回弹模量和承载力 或者做作用应力有什么之间关系，就是能不能直接换算。
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