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本文论述了瀑布沟水电站高土石坝采用宽级配砾石土或砾石土与会细粒较多的老堡子按一定比例掺合的两方案，而经现场碾压与掺合试验确定优选方案。此大型试验对工程的建设具有重大的技术经济效益，为此开展了现场ＱＣ小组活动。该成果获１９９３年四川省工程建设系统一等奖。
This paper discusses the two schemes of using high-grade gravelly soil or gravelly soil for the high-earth-rockfill dam of Pubugou Hydropower Station and blending the old fortress with more fine particles according to a certain proportion, and the optimal scheme is determined through on-site rolling compaction and blending test. This large-scale test of the construction of the project has a significant technical and economic benefits, for which carried out on-site QC group activities. The achievement won the first prize of the Sichuan Provincial Engineering Construction System in 1993.