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钻孔取芯和压水试验是评定碾压混凝土质量的综合方法．汾河二库工程于1998年12月对已铺筑的坝体874．50m高程以下的碾压混凝土进行了钻孔取芯和压水试验．经全国碾压混凝土专委会专家认定，汾河二库大坝碾压混凝土浇筑质量达到了国内领先水平．其中钻孔4150mm芯样创造了碾压混?
Core drilling and water pressure test is to assess the quality of RCC integrated method. Fenhe second reservoir project in December 1998 on the paved dam 874.50m below the level of RCC drilling and coring water pressure test. The National RCC Specialist Committee finds that the quality of Fenhe II Dam RCC has reached the leading level in China. Which drilling 4150mm core sample created a roller compaction?