Abstract
Through the packing particles analysis test and heavy compaction test at different depths of new system of Baotou steel finished product of the test section , analysis of the grain size distribution of slag and fly ash mixture and the content of coarse and fine particles on compaction effect are conducted , the results show that the filler embankment foundation is mainly for uniform gradation and continuous filler, when the coarse particle of the filler is 83% ～ 84% content, the compaction effect is best. Using multiple linear regression, the grain size distribution characteristics of the filler particle size equation, coarse and fine particle content and maximum dry density of the regression equation are obtained .
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