Fitting orthogonal polynomial method for characterizing the functional relationship between the dry density and moisture content of earth-fill in standard compaction test is presented.

提出了描述标准击实试验中土料干密度和含水量之间函数关系的拟合正交多项式方法。

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Using the regress analysis method and the numerical analysis method to obtain the extremum of the compaction test, we may accurately extract the biggest dry density and the optimum moisture content.

利用回归分析法和数值分析法对击实试验数值进行分析，可以较准确地求出最大干密度和最佳含水量。

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In the paper, through the compaction test, the optimum moisture content and maximal dry density of aeolian sand are determined.

本文通过击实试验，确定了风积沙的最佳含水量和最大干密度。

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