KARAKTERISTIK INDEKS PLASTISITAS TANAH TERHADAP TEGANGAN GESER DAN REGANGAN GESER

Ukiman Ukiman


Abstract


The change of the utilize area arrange as result of rapid property and industry sector was impacted to the opening of soil pore. In addition, it was impacted to work load at the developed road, also the existence of area inclination change as result of processing for the existed building placement. So the ground water content increase at the rain, in certain time the soil will be change from solid to soft (the characteristic of soil consistence). Because the soil granule was swelling, so the soil strength becomes decrease. The reached speed of maximum tension will tend to soil broken which causing landslide. In the study of the Characteristic of Soil Plasticity for the shift tension and strain was obtained picture that the average time speed to reach the maximum shift is 2,42 minute or 145 second and the effect of plasticity index is more and more great, the occurred strain was smaller in area utilize, and the mathematical expression is _ = - 0,0891 x IP + 9,577.


Keywords


plasticity index, soil tension and strain

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