关键词: 堆石料, 相对密度, 碾压质量, 坑测法, 附加质量法

Abstract: The design standard of rockfill is usually evaluated by porosity index. However at present porosity is likely to meet the design standard after the application of large compacting machinery.In view of this situation, the engineers studied the feasibility of controlling rockfill quality based on relative density method in Lianghekou Hydropower Station on Yalong River.In this paper, test methods of relative density, namely the pit measuring method and additional mass method at rolling site were introduced, and we compared their test results and feasibility in evaluating the relative density in practice. The results showed that the application effect of additional mass method was better.

Key words: rockfill material, relative density, rolling quality, pit measuring method, additional mass method