动态回弹模量在路基压实质量评定中的应用

路基压实质量检测过程中,一般都会存在检测参数多、检测时间长、路基被损坏等问题。为快速、有效、准确评定路基施工过程中的压实质量,根据现阶段动态回弹模量的预估模型,基于回弹模量的各类测试方法的原理,介绍动态回弹模量测试仪在工程中的应用,阐述填土路基的动态回弹模量与压实度、土石路基和填石路基的动态回弹模量与沉降差的相关性,提出路基压实质量的评定方法。表明动态回弹模量与其他检测参数相关性良好,可以作为路基压实质量的判定依据,为类似工程项目研究提供理论支撑和参考依据。

In the process of roadbed compaction quality inspection,there are generally many problems,such as many testing parameters,long testing time,roadbed damage and so on.In order to evaluate the compaction quality of roadbed quickly,effectively and accurately,according to the prediction model of dynamic resilient modulus at the present stage and based on the principle of various testing methods of resilient modulus,this paper introduces the application of dynamic resilient modulus tester in engineering,and expounds the correlation between dynamic resilient modulus and compaction degree of filling roadbed,dynamic resilient modulus and settlement difference of earth-rock roadbed and rockfill roadbed.The evaluation method of roadbed compaction quality is put forward.The results show that the dynamic rebound modulus has a good correlation with other testing parameters,which can be used as a basis for judging the compaction quality of roadbed,and provide theoretical support and reference for the research of similar projects.