Recent Improvements in the Use, Interpretation, and Applications of DMT and SDMT in Practice

摘要

This article presents an overview of the current trends and ongoing developments in the use, interpretation, and application of the flat dilatometer (DMT) and the seismic dilatometer (SDMT) to site characterization and geotechnical design. In particular, the following issues are specifically addressed: the sensitivity of DMT to stress history, combined use of DMT and the cone/piezocone penetration test (in-situ multi-parameter/multi-test approach), estimating overconsolidation ratio and K-0 in sand, DMT interpretation in partially draining niche silts and in non-textbook soils, interrelationship small/operative strain stiffness and in situ stiffness decay curves using SDMT, and liquefaction assessment.