... underground work brittle rock pillar strength consideration diederich 1999 Reservoir Characterization Upstream Oil & Gas support component grouted rebar brittle parameter stress condition guideline reinforcement length bilinear failure envelope cutoff stress field mesh-reinforced shotcrete...

... le bien-fonde experimental des considerations qui precèdent, puis de construire une ebaucbe theorique plus rigoureuse du phenomène. sur coefficient que mohr coulorrb contrainte Upstream Oil & Gas probabi lite rupture un forage pression microstatistical model brittle rock...

... Abstract: A theoretical model of dilatancy and fracture of a brittle rock due to growth of many initial cracks under uniaxial compression is presented, assuming that a group of biggest and most rarely distributed of them is the leading one, and cracks of this group are markedly increased...