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THE RELEVANT FORMULA OF LIQUID LIMIT AND PLASTIC LIMIT OF THE SOIL OF PART WEST URBAN AREA IN ZHENGZHOU CITY PROPER

Wei Hong

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Abstract

The test of liquid and plastic limit is a important item for geotechnical one.Generally,the test of plastic limits is used in operating by hand.This method has more artificial factors and lower efficiency.In some areas,the liquid limit and plastic limit has approximate lineal relevant formula, expressed formula as like this ω P=a+bω L.It is a forthright and high efficient method,to calculate directly the plastic limit from liquid limit with this formula.In this paper,the relevant formula of the liquid and plastic limits has been calculated in least square method of mathematical statistics from 166 groups soil sample of 8 construction sites in part west urban area in Zhengzhou city proper.

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What this paper is about

The test of liquid and plastic limit is a important item for geotechnical one.Generally,the test of plastic limits is used in operating by hand.This method has more artificial factors and lower efficiency.In some areas,the liquid limit and plastic limit has approximate lineal relevant formula, expressed formula as like this ω P=a+bω L.It is a forthright and high efficient method,to calculate directly the plastic limit from liquid limit with this formula.In this paper,the relevant formula of the liquid and plastic limits has been calculated in least square method of mathematical statistics from 166 groups soil sample of 8 construction sites in part west urban area in Zhengzhou city proper.

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Available abstract

The test of liquid and plastic limit is a important item for geotechnical one.Generally,the test of plastic limits is used in operating by hand.This method has more artificial factors and lower efficiency.In some areas,the liquid limit and plastic limit has approximate lineal relevant formula, expressed formula as like this ω P=a+bω L.It is a forthright and high efficient method,to calculate directly the plastic limit from liquid limit with this formula.In this paper,the relevant formula of the liquid and plastic limits has been calculated in least square method of mathematical statistics from 166 groups soil sample of 8 construction sites in part west urban area in Zhengzhou city proper.

Key concepts: Atterberg limits, Limit (mathematics), Mathematics, Square (algebra), Detection limit, Sample (material), Soil test, Statistics

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