应用弹性层状理论，研究了不同等效方法对基层顶面当量回弹模量换算结果的影响。
The paper studied the calculation method of equivalent modulus of elasticity of foundation under principles of different equivalence by elastic multi-layer theory.
而以板底拉应力等效为指标的基层顶面当量回弹模量值能较为真实地反映基层刚度和厚度变化对板底拉应力的影响。
But the principles of stress equivalence could accurately reflect the influence on the cement concrete pavement stress by the modulus and thickness of semi-rigid type base.
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