In-situ measurement of small strain shear stiffness of high water content contaminated dredge spoils

摘要

Two intrusive in-situ measurement systems,the C-CORE Shear Wave Profiling System and hte Oxford Univeristy Densimeter,were used to carry out in-situ profiles of bulk density and shear wave velocity in contaminated dredge spoils.The spoils have high water content and,at the time of the survey,exhibited densities in the rnage of 1160 kg/m~3 to 1302 kg/m~3 and undrained shear strengths in the rnage of zero to 2.7 kPa, in the uppermost 3.85 metres of the deposit.The objective of using the above technologies was to provides a profile of in-situ small strain shear stiffness of the deposit through the combination of the bulk density and shear wave velocity measurements.