There are many factors to influence subgrade resilient modulus, and the main 3 factors are soil type, compaction degree and moisture content.
影响路基回弹模量的因素有多种，主要包括土质类型、压实度和含水量三个方面。
At the same time, there is not uniform between subgrade design index (subgrade resilient modulus) and construction control index (compaction degree).
同时，存在路基设计指标(回弹模量)与施工控制指标(压实度)不统一的问题。
Therefore it will be urgent to research a kind of method with practice, rapidness and convenience to test subgrade resilient modulus and to control construction quality of subgrade reasonably.
因此，急需寻找一种便于工程设计应用的、快速、方便实用的回弹模量试验检测方法，并合理地进行路基施工质量控制。
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