Empirical Correlation Between Static Plate Load Capacity and Elastic Modulus by Using the Light Falling Weight Deflectometer Test

초록

The Light Falling Weight Deflectometer(LFWD) has been used to evaluate the stiffness of subgrade and/or roadbed. The LFWD test was adopted to estimate the dynamic elastic modulus while the Static Plate Load Test (SPLT) was used to evaluate the coefficient of the subgrade reaction. Total of 24 field tests were preformed at several different locations. The analysis of test results shows that there is a reasonable linear correlation between the dynamic deflection modulus and the elastic modulus in sandy soil materials, while the unbound material does not have a good correlation in between two parameters.