在道路等工程中,其路基要使用大量填土,填土碾压的情况直接影响路基的施工质量。碾压后的土基压缩弹性模量是一个衡量路基压实程度的一个特性指标。文章介绍了我们一种基于落球检测技术原理的测试系统(EH-FWD),可以快速,明确地测试碾压后的土基压缩弹性模量,进而得出与碾压次数的关系,对填土碾压质量管理具有很重要的实用价值。 In the road and other projects, the embankment to use a lot of filling, filling crushing conditions directly affect the quality of roadbed construction. The compacted elastic modulus of the subsoil after rolling is a characteristic index to measure the subgrade compaction degree. The paper introduces a test system (EH-FWD) based on the principle of falling ball detection technology, which can quickly and clearly test the compressive elastic modulus of soil bed after rolling, and then get the relationship with the number of rolling, Rolling quality management has very important practical value.