Use of the Flat Dilatometer Test (DMT) in （使用平面膨胀计测试(DMT)）.pdf

Use of the Flat Dilatometer Test (DMT) in geotechnical design G. Totani, S. Marchetti, P. Monaco M. Calabrese University of LAquila, Faculty of Engineering, LAquila, Italy Preprint : IN SITU 2001, Intnl. Conf. On In situ Measurement of Soil Properties, Bali, Indonesia, May 2001 ABSTRACT: This paper presents an overview of the DMT and of its design applications, in the light of the experience accumulated over the last 20 years. The following applications are discussed: determining common soil parameters, predicting settlements of shallow foundations, compaction control, detecting slip surfaces in clay slopes, predicting the behavior of laterally loaded piles, evaluating sand liquefiability, estimating consolidation/flow coefficients, selecting soil parameters for FEM analyses. The basic differences of the DMT compared to other penetration tests are also discussed. 1 INTRODUCTION The test starts by inserting the dilatometer into the ground. Soon after penetration, the operator inflates The Flat Dilatometer Test (DMT), developed in Italy the membrane and takes, in about 1 min, two in 1980, is currently used in over 40 countries both readings: the A pressure, required to just begin to for research and practical applications. The wide move the membrane (lift-off),