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采用比重计法进行土颗粒分析试验的成果整理 ,一般需根据实测值先查图表 ,得到一些校正值和系数 ,然后计算出结果。查图表比较繁琐费时 ,工作效率不高 ,并且容易出现制图和查图的双重误差。本文对有关校正值和系数进行回归 ,求得数学表达式 ,取消查图表环节 ,从而简化了计算 ,提高了工作效率 ,更适合于电算 ,其精度也满足规程的要求。
The use of hydrometer method for soil particle analysis test results, generally need to check the chart according to the measured value, get some correction values and coefficients, and then calculate the results. Checking the charts is cumbersome and time-consuming, the work efficiency is not high, and the dual errors of drawing and checking are prone to occur. This paper regresses the correction values and coefficients, obtains a mathematical expression, and cancels the check of the chart, which simplifies the calculation, improves the work efficiency, and is more suitable for the calculation. The accuracy also meets the requirements of the regulations.