Abstract Understanding and quantifying the hazards related to earthquake-induced submarine liquefaction landslides are particularly significant offshore of tropical volcanic-carbonate islands, where carbonate production competes with volcanism create highly contrasted lithological successions. To improve detection liquefaction-prone layers, we analyzed physical properties mineralogy performed 7...

The Yellow River alluvial silt has unique engineering properties and is unstable when encountering moisture. mechanical of subgrade can be impaired by the increase in moisture content due to rainwater infiltration, which a negative effect on traffic safety. To further reveal influence deformation characteristics silt, series monotonic cyclic triaxial tests were conducted with different contents...

The accumulated damage of the surrounding rocks induced by existing coal mining activities (such as excavation and extraction) is initial mechanical background rock for further operations. An energy-based Cumulative Initial Damage (CID) variable was proposed to account such damage. With MTS815 electro-hydraulic servo-controlled system, samples with different CID value were prepared cyclic pre-l...

It is commonly assumed that the fully-saturated scenario represents critical shear strength condition for geotechnical structure design; nevertheless, this not case when dynamic of unsaturated soil considered, because water content affects transfer seismic waves through porous medium and into a structure. important to better understand behavior so response during an earthquake could be establis...

Abstract In order to investigate the fatigue behavior of jointed soft rock samples with different joint dip angles, cyclic triaxial tests under stress amplitudes and confining pressures were numerically simulated using combined finite-discrete element method (FEM-DEM). The dynamic strength deformation rules revealed, including masing effect, ratcheting volumetric strain properties failure modes...

A new method for kinematic calibration of a robot is presented, based on triaxial measurement of acceleration by a sensor xed to the robot end-point. The kinematic parameters are evaluated by means of a series of simple tests (two for each joint). In these tests each joint, except the one under consideration, is kept xed. Acceleration and encoder output are then acquired. Simulations and experi...

This paper aims to study the mechanical behaviour and failure mechanism of intact rocks under different loading conditions using the grain based model implemented in the universal distinct element code (UDEC). The grain based numerical model is a powerful tool to investigate complicated micro-structural mechanical behaviour of rocks. In the UDEC grain based model, the intact material is simulat...