...Théo Besson; Catherine Jacquard; Michel Rispal; Philippe Reiffsteck; Fabien Szymkiewicz ABSTRACT Borehole expansion tests such as the Ménard pressuremeter test (PMT) are widely used in geotechnical testing as they provide a modulus that can be used to estimate settlements under geotechnical...

... calibration factor, stiffness of the torsional spring connecting the active and passive beams, and mass moments of inertia for the active platen and active beam. A brief review is given of the frequency domain transfer function approach for determining the shear modulus and damping of soil and rock, and a new...

...Pavana K. R. Vennapusa; David J. White Light weight deflectometers (LWDs) are increasingly being used in earthwork QC/QA testing to provide rapid determination of elastic modulus, which is an essential input for mechanistic pavement design. To successfully implement the use of these devices...

... of specimen dimensions and boundary configurations. A comparison with other small-strain stiffness tests indicates that the Young's moduli obtained from the seismic tests are consistently higher than those from the SSG tests. The plots of shear modulus versus shear strain amplitude suggest that the SSG...

... Triaxial cyclic frequency LDTs damping modulus time-lag data acquisition References Bolton , M. D. and Wilson , J. M. R. , 1989 , “ An Experimental and Theoretical Comparison between Static and Dynamic Torsional Tests ,” Geotechnique   0016-8505 , Vol. 39 , No. 4 , pp. 585...

... National Geotechnical Experimentation Site. 25 05 2001 14 08 2002 Marchetti dilatometer flat DMT expansion pressures unload-reload modulus soft clay NGES References Bellotti , R. , Benoît , J. , Fretti , C. , and Jamiolkowski , M. , 1997 , “ Stiffness...

... modulus ( D′ ). A sampling of data from ten clay sites was used to assess the derived magnitude of hydraulic conductivity, as determined from k = c h γ w /D′ . 01 03 2001 05 11 2001 clays cone penetration consolidation dilatory response dissipation in-situ tests hydraulic...

... the compliance of testing equipment and to improve the measurement setups. Testing equipment used in this study included resonant column device (RC), torsional shear device (TS), free-free resonant column device (FF-RC), cyclic resilient modulus testing device (M R ) and the static compression testing device...

...MA Gabr; JH Hart An experimental study was conducted to evaluate the elastic modulus of sand reinforced with polymeric geogrids. A total of nine plate load tests were performed in the laboratory using a 1.52 m × 1.52 m × 1.37 m (length × width × depth) test box, and a 0.3 m square test plate...

...FE Heuze The NX-borehole jack is a widely used tool for estimating the deformability of rock masses in-situ. It applies unidirectional pressure to the walls of a rock borehole by means of two steel platens. In theory, the analysis of test data is straightforward: the modulus estimate requires...

... are presente0.Laxgzableto the use of the developed appratus. ~es, slo~ ? , e ~ t , geotextiles, synthetic fabrics, abrasion, abrasion resistance, ~ s s u r e , strength, modulus, mea- surement, railroad, track, track support, rehabilitation, tensile proper- ties tion of abrasion tests for geotextiles...

..., and comparisons are made among the compressive strength, initial tangent modulus, angle of internal friction, and cohesion of the specimens for different test conditions. The strength of the specimens grouted under a confining stress is seen to be a function primarily of their relative density. Little difference...