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分析了高等级半刚性路面的路基路面多数对有关设计指标的影响情况，明确了路表弯沉和土基顶面弯沉、土基顶面压应变之间的关系，指出路表弯沉不能明确反映土基顶面的工作状态。
The influence of the majority of subgrade and pavement of high grade semi - rigid pavement on relevant design indexes is analyzed. The relationship between the deflection of road surface and the deflection of top soil surface and the top surface compressive strain of soil foundation is clarified. Clearly reflect the working status of the top of the earth.