... boundaries, considering its flexibility with no need to adjust mathematical nodes onto boundaries, the meshing efficiency, and its integration precision. In this study, we derive and compare two new approaches for boundary constraints, i.e., a discontinuous approach with Lagrange multiplier and a continuous...

... of subjectivity often inherent in commonly used classification systems. These challenges are especially exacerbated in weak rock or densely jointed rock masses. This paper introduces a new approach to characterise densely jointed rock mass using artificial neural networks and principal component analysis, based...

...A NEW APPROACH TO IDENTIFY CRACK INITIATION STRESS OF CRYSTALLINE ROCKS UNDER UNIAXIAL COMPRESSION CONDITION *X. G. Zhao, J. Wang, and L. K. Ma CNNC Key Laboratory on Geological Disposal of High-level Radioactive Waste, Beijing Research Institute of Uranium Geology No.10, Xiaoguandongli, Anwai...

... in the discussion of rock mechanics. Many researchers in the field of rock mechanics have attempted various remedies, but the outcome is far from satisfactory — a mechanics theory for rock, in its true sense, has not been established. Upstream Oil & Gas 13th international congress new approach...

...A NEW APPROACH FOR APPLYING CONFINING STRESS TO A BONDED-PARTICLE MODEL *Shantanu Patel, and C. Derek Martin University of Alberta, Department of Civil & Environmental Engineering 1-036, Markin/CNRL Natural Resources Engineering Facility Edmonton, Alberta, Canada, T6G 2W2 (*Corresponding author...

... Malan tabular layout layout closure profile mining step strength back area crush pillar layout crush pillar pillar strength pillar layout average pillar stress pillar metals & mining crush pillar behaviour new approach closure South Africa Harmonising Rock Engineering...

... Surveillance wellbore seismic inner tube production monitoring borehole imaging reference line borehole joint investigation borehole image borehole wall drilling system Core Log core recovery new approach borehole bh1 discontinuity plane 1355 Yoon, K.S. et al., A New Approach for Borehole...

... of the art" works (Corbetta, 1990; Bernaud, 1991; Panet, 1993; Nguyen-Minh, 1994), has allowed to achieved the final forms presented herein. calculation self similarity principle Bernaud equation methode rockmass new approach Convergence Confinement Method convergence curve new implicit...

... final situation convergence rock mass stiffness displacement rock-support interaction analysis intersection equilibrium characteristic line new approach tunnel bolt installation Rock Deformation rockbolt excavation installation deformation uri load-deformation curve...

... & mining acoustic emission technique experiment Reservoir Characterization polarisation shear wave microseismic activity splitting rock mass rockburst concurrent seismic tomographic imaging geotomographic imaging Upstream Oil & Gas Imaging new approach pillar anisotropy Concurrent...

... some important informations about the successes obtained in Brazil, with a new approach in the sha1 low tunnel design and construction, where are Pointed out enormous advantages, in triple aspect: safety, rapidity and economy, face to the conventional or classic methods. This new approach for design...

...A NEW APPROACH TO THE EVALUATION OF THE STRENGTH OF CONCRETE. CONSTRUCTION CONTACT WITH THE ROCKY FOUNDATION Une nouvelle approche a I'estimation de la resistance du contact d'une construction en beton avec la fondation en roche Neuer Standpunkt zur Berechnung von Festigkeit des Kontaktes zwichen...