... been difficult of confirmation. So, the mechanical improvement of foundation by grouting, like the changes of elasticity and strength, has not been considered in dam foundation design. In this study, in-situ experiments were made in order to examine the grouting effect on mechanical properties of rock...

... of the upper shear box. The normal-load jacks can be controlled independently. flow in porous media flow rate rock joint initial joint aperture Reservoir Characterization Fluid Dynamics flow simulation examination Modeling & Simulation joint surface simulation result shear displacement...

... storage cavern. reservoir geomechanics displacement operation underground Reservoir Characterization extensometer rubber sheet examination Wellbore Design cavern air storage cavern lining structure rock mass Pilot Plant mechanical behaviour new lining structure Upstream Oil...

... and massifs were determined by special underground workings and boreholes in the cases of tunnel explosions, and by deep boreholes in the cases of shaft explosions. The spatial distribution of rock properties was determined with seismic methods. Examination of the fracturing of rock massif affected...

..., floods and landslides can be so simply foreseen and prevented as small scaled rockfall. rockfall restitution Simulation small scale rockfall test variation free falling resistance logiciel examination rockfall test geometry landslide input data rockfall path angular velocity back...

... may occur in form of fractures of a tensile character. An examination of the sandstones in view of their compressive and bending strength confirms the assumption (based on field observations) of the existence of latent potential surfaces of discontinuity in a rock massif. They appeared under...

... Cardboard strength fracture initiation Griffith diameter examination brittle material principal stress 0 propagation hydraulic fracturing Brazilian test specimen fracture propagation tensile strength plane end condition fracture contour stress distribution equation...

... Summary Upper Cretaceous opoka marls, marls and clay limestones were examined as to their compression strength. On the basis of the results obtained during the examinations here considered and by means of photograpbical method applied for recording stresses and deformations, an analysis...

... ground transportation earth-pressure acting lining railway tunnel tunnel load cell usami tunnel rock mass reconstruction rail transportation fluctuation steel support external force pressure cell lining concrete earth pressure examination protective support Sect Shimokuno...

... not to overlook them and subject them to a particular geomechanical examination. This examination, performed by Prof. Muller, revealed the exact conformation of the abutment rock, deter- mining the position, dip and strike of each fracture, as well as its particular importance with regard to its effects...