核子密度仪测试以其简单方便、经济快速等优点已广泛应用于回填土密度、含水量检测中。但其为间接性测试手段 ,测试成果需进行校正 ,国内尚无配套的规程 ,本文收集了多个大型工程成功的试验应用资料 ,进行总结研究 ,与同行探讨 Nuclear density meter test with its simple and convenient, fast economic advantages have been widely used in backfill soil density, water content testing. However, it is an indirect test method, the test results need to be corrected, there is no domestic supporting procedures, this article collected a number of successful large-scale experimental application of information, to conduct a summary study, and colleagues