Comparison of Test Results From a Compacted Fill

Abstract

The plate loading test (PLT) is an important field test used to determine in-situ properties of soils. In some cases, such as hard rock, plate tests are sometimes the best means of determining the necessary design parameters. Results of plate bearing tests are used in estimating the vertical settlement and strength properties of soil and rock masses, including estimating the bearing capacity of foundations, the degree of compaction of a fill and the design of pavements. This paper presents results of field tests carried out on a site on an embankment. Further, results of laboratory tests carried out on disturbed samples recovered from the test site are presented. Field tests include plate bearing tests, the California bearing ratio (CBR) and cone penetration tests (CPT). Plate load tests are not carried to failure. A hypcrbolic model is used to obtain the ultimate pressure ( q ult ). Laboratory tests include particle size distribution, CBR and quick undrained triaxial tests. Values of the resilient modulus ( M R ) and undrained shear strength ( c u ) are determined from plate load tests. Field and laboratory test results are compared.