附加质量法在糯扎渡水电站坝体填筑料密度检测中的试验研究

Experimental study on applying additive mass method in density measurement of rock-fill object of rock-fill dam in NUOZHADU Hydropower Station

本文主要介绍了附加质量法的基本原理，结合糯扎渡水电站坝I、坝II料附加质量法测试情况，说明附加质量法第三代技术可以应用于粒径不超过800mm的填筑料密度检测，在堆石体密度检测中具有的简单性、有效性、快捷性、无损性等优点，并且附加质量法第三代技术摆脱了前二代技术中Vp的测量问题，解决了湿密度的脱水问题，实现了干密度的反演计算，反演精度和保证率均可以达到95％。

This paper mainly introduces the basic principle of additive mass method, combined with hydropower dam NUOZHADU I, II materials that illustrate the third-generation technology of additive mass method can be applied to density measurement of materials that not exceed 800mm diameter in rock-fill dam. With the characteristic of simplicity, effectiveness, speedy, non-destructive etc, and shaking off the problem of measurement of Vp in the former second-generation technology, the third-gcneration technology of additive mass method solve the problem of dehydration of the wet density also, and achieve inversion of dry density, and make sure that inversion accuracy can achieved 95%.