... of the data and where generally a reduction in consumption is expected by decreasing the distance between boreholes. This evaluation allows the identification and correction of some results irregularities attributable to the geology or the grout curtain characteristics (e.g., karstic areas or inadequate...

... of inspection galleries, the installation of a grout curtain with a downstream drainage screen as well as the installation of pre-stressed permanent tendons were carried out. In all three cases the stability of the upgraded dam could be proven on the basis of finite element analyses. ZUSAMMENFASSUNG Die Urft...

... is in progress. structural geology earthwork glissement clyde power project Reservoir Characterization Upstream Oil & Gas New Zealand failure surface Brewery Creek Slide brewery creek rock slide prevent instability foliation stability landslide grout curtain tunnel engineering work...

... Reservoir Characterization Fluid Dynamics structural geology sur du barrage resistance renewable energy stability subduction zone shear failure flow in porous media liu-jia-xia hydro-power station Institute grout curtain daa foundation high dam foundation preuure seientia...

... point cs1 operation wellbore integrity displacement characteristic reservoir geomechanics superficial layer passante dam grout curtain foundation rock histogram Reservoir Characterization Upstream Oil & Gas rotation seismic velocity foundation rock behaviour means settlement...

... Summary Starting from field surveys to determine and assess the systems of discontinuities in the bedrock a geometrically self-contained solution is established for the orientation of grout curtains underneath dams. With it optimal effects are sought in respect to impermeabilization as well...

... Summary The effect of a grout curtain on percolation and uplift in a dam foundation can be judged only if the basic properties of the ambient are well known and described. Geology, tectonics, hydraulics, permeability describe the ambient properties, generally they are found to change very...

... dams it can cuase in their base, in the contact with the rock and in the near-ccntact zone with the foundation tensile stresses accompanied by partial disturbance of the contact, opening of joints in the foundation and break of the grout curtain. In the course of construction and service of the 100 m...