... ground model Artificial Intelligence settlement reference value pressuremeter test parameter 1 backanalysis contour excavation tunnel equation MODEL PARAMETERS - HOW TO AVOID THEM Harry R. Asche1, Robert A. Day2 and John Doherty3 ABSTRACT The use of numerical models requires determination...

... and Hangingwall Schist. Reservoir Characterization north wall numerical stress analysis geometry fabric open cut metals & mining contour south wall stress change open pit batter stope underground mining operation schist geology barrier pillar Static and Dynamic Considerations...

... displacement minor principal stress right wall Upstream Oil & Gas sidewall excavation reservoir geomechanics powerhouse cavern stress analysis MPa Reservoir Characterization cavern contour scale 1 tensile-stress area principal stress consecutive excavation stage principal...

... contour of the chamber. 24 Fig.1 The change of the intensity of the' crushing process of ore massifs 3 THE ELECTROMETRIC METHOD OF THE DETERMINATION OF THE ORIENTATION OF THE QUASI-PRINCIPAL STRESSES Tne known methods of the solution of this problem are distinguished by the sufficiently great labour...

... factor contour compressive stress compression dilatancy initial crack value 0 axis brace deformation Rock at Great Depth, Maury & Fourmaintraux (eds), © 1990 Balkema, Rotterdam. ISBN 90 6191 9754 A mechanism of deformation and fracture of brittle rock Un mecanisme de deformation et de rupture...

...), the above solution can be used to determine the rock deformation modulus E o. In the primal problem the basic formulas for determining displacements of the points of the borehole cross-section contour are derived by D.I. Sherman's method using the theory of analytical functions of complex variable...

... reservoir geomechanics displacement borulev coefficient Reservoir Characterization Upstream Oil & Gas dimension contour excavation expression metals & mining excavation contour formula stability failure process Rock Excavation Destruction propagation destruction...

... and deformation parameters were applied isotropically in the rock mass. (Figure in full paper) Reservoir Characterization extensometer sidewall Anchor principal stress vector Upstream Oil & Gas cavern Contour interval excavation reservoir geomechanics displacement contour support measure...

.... On presente la methode et Ie resultats de l''examen de changement des proprietes physico-chimiques des roches avoisinantes autour des ouvrages miniers dans les mines des bassins de Donetzk et de Karaganda. Observations on rock behaviour on contour of workings show changes of rock strength in the course...

...DETERMINATION OF OPTIMAL SHAPE OF UNDERGROUND OPENINGS AT HIGH INTERNAL PRESSURE AROUND ITS CONTOUR Bestimmung der optimalen Hohlraumform bei hohem Innendruck Determination de la forme optimale des cavites souterraines de pression interne elevee autour de leurs contours N.P.YLOKH & A.Y.ZOUBKOY...

... provides more favourable stress conditions at the contour. ZUSAMMENFASSUNG: Anderungen der Energisituation wie auch Sicherheitaspekten haben neue und strengere Anspruche fuer öllagerung mitgebracht. Dadurch hat es sich notwendig gezeigt einen steigernden Anteil von den öllagern untertage zu bringen...

... Fig.2, the pat- tern of moisture stress and rock displacement distribution upon depth wetting from a borehole is the fol- lowing: radial moisture stresses and displacements are of an extremal nature and have zero values at the contour of the working, whereas the tangential stresses reach their ma...

... Artificial Intelligence mesh sandstone mechanism caley formation tendency investigation narrabeen group stability analysis contour elastic analysis Goodman rock failure rock mass Reservoir Characterization free face rock slope Claystone loading basal claystone grose valley...

... SUMMARY This paper presents some aspects on planning blasting for dam foundations. Bench blasting of the "central zone" shall be planned considering the detrimental effects of vibrations on nearby structures and on the remaining rock. The choice of different types of controlled and contour...

... Summary General stability criteria for unsupported cavity cross-sections in bedrock are given. For a special class of cross section then terms and statements are discussed by the aid of which stability investigations on the cavity contours are to be carried out. This is followed...