LWDT와 Geogauge를 이용한 성토지반의 다짐관리 현장적용성 평가
Applicability Estimation Compaction Method of Embankment using LWDT and Geogauge
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PBT (Plate Bearing Test) is a commonly used compaction estimation used to provide basal support for embankments. This study presents the results fromexperimental evaluations PBT, LWDT (Light Drop Weight Tester) test and Geogauge test with embankment materials which consist in sandy soil,crushed stone and rock. The results of this study indicate that the regression analyze results (r) from test results between Young's modulus and K30, Ev are 0.385 and 0.111~0.496, estimated very lack of correlation. The Geogauge is frequency vibration from machine to underground. Geogauge can notmeasure to accuracy test results when it is used on ground of the rock or crushed stone. The regression analyze results (r) from Ev and Dynamic modulusare 0.502~0.847, different estimated by calculate method, as it were, when calculate Ev, least square method are appeared more accuracy than gradientof secant.
Abstract
PBT (Plate Bearing Test) is a commonly used compaction estimation used to provide basal support for embankments. This study presents the results fromexperimental evaluations PBT, LWDT (Light Drop Weight Tester) test and Geogauge test with embankment materials which consist in sandy soil,crushed stone and rock. The results of this study indicate that the regression analyze results (r) from test results between Young's modulus and K30, Ev are 0.385 and 0.111~0.496, estimated very lack of correlation. The Geogauge is frequency vibration from machine to underground. Geogauge can notmeasure to accuracy test results when it is used on ground of the rock or crushed stone. The regression analyze results (r) from Ev and Dynamic modulusare 0.502~0.847, different estimated by calculate method, as it were, when calculate Ev, least square method are appeared more accuracy than gradientof secant.
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