... Abstract The flexural toppling and block toppling of rock slopes show different failure mechanisms due to the distinctions in lithology and structures. Two typical modes of toppling are quantitatively studied in this work using discrete element (DE) modeling, and the influence of key...

... Abstract As a tight conglomerate reservoir, the Baikouquan formation reservoir in the Mahu depression is vital heterogeneous. The development model of unconventional oil and gas fields such as shale gas is copied in the early development process. Advanced horizontal wells and volumetric...

... and storage activities. In this paper, we present integrated machine learning and numerical modeling approaches that we have developed to understand fundamental geosystem behavior, to predict their mesoscale behavior, and to analyze large-scale performance of such geosystems subject to multi-physical...

... Abstract A three-dimensional geological model that incorporates spatial information efficiently and intuitively is an important basis for the planning, construction, and utilization of high-level radioactive waste (HLW) disposal geological repository sites. However, traditional modeling...

... of each rockburst level. Indexes weight are determined by using the improved CRITIC method. An improved multidimensional normal cloud-critic rockburst proneness evaluation model is proposed. Compared with the evaluation results of the entropy weight method-cloud model and the cloud model for rockburst...

... included angle θ between wellbore azimuth and in-situ minimum principal stress orientation. In this study, a seepage-stress-damage coupled dynamic fracture propagation model is established through phase field method to investigate the effect of angle θ on multi-cluster fracture simultaneous...

... geology reservoir characterization ansy wellbore design geological subdiscipline society iop publishing iop conf geologist reservoir geomechanics interface conference application revit conversion interface calculation modeling information boolean operation environmental science...

... Abstract The discrete element modeling of rock and soil mass usually relies on tedious parameter adjustment and mechanical property testing operations to obtain appropriate mechanical parameters of the element. In this paper, based on the linear elastic contact theory, a discrete element model...

... is situated deep down, horizontal and vertical stresses are more balanced as compare to tunnel at primary layers. In this paper physical modeling of shallow tunnels is discussed to understand the in-situ behavior of peripheral tunnels when subjected to high rate of impact loading/ projectile penetration...

... cavity. Based on DEM, the Particle Flow Code is used to simulate the rock salt with interlayers. A novel hybrid DEM model is proposed, incorporating the rheological behavior of the pure rock salt, and the brittle character of interbedded mudstone. This model is capable of representing the macro...

.... The strength recovery was observed in the re-sliding process after the holding period especially when the confining pressure is relatively low. An elastoplastic model incorporating the healing and decay of the rock structure is proposed to describe the strength recovery in the re-sliding process. The proposed...

... The Bonded-Particle Model as a Tool for Rock Mechanics Research and Application: Current Trends and Future Directions David O. Potyondy Itasca Consulting Group, Inc., Minneapolis, MN, USA *Corresponding Author s E-mail: [email protected] ABSTRACT We generalize our view of a bonded-particle...

... ABSTRACT Mechanical behavior prediction of rock joints is very important in the rock mechanics. Many models have been proposed to predict the mechanical behavior of joints at which lack of correct evaluation of effective roughness coefficient has been the most important shortage...

... to couple with a fluid pipe network model to simulate the pressure response during hydraulic fracturing. In this paper, the effect of natural fractures on hydraulic fracturing will be studied. In particular, the effect of several physical properties on fracture initiation and propagation will be addressed...

... ABSTRACT This paper describes a small laboratory test on flexural toppling failure of rock slope. This failure process involves slip between columns and tensile rupture across the colums. Gypsum columns with non-persistent cross joint were used to make a physical modeling for the slope failure...

... modeling shallow landslide barrier support rope barrier design protection Upstream Oil & Gas debris flow Switzerland flexible barrier installation surge climate change Retention capacity Creek application Wendeler numerical modeling interaction flexible debris flow barrier...

... have been gathered and determined from laboratory tests. In fact, at first stage, with use of GSI value, the strength parameters of rock mass were determined and equivalent medium which is consisting intact rock and joint sets has obtained and modeled. These parameters were examined with Rocdata...

... dam foundation variation rock mass case study Fluid Dynamics modeling dimensional numerical modeling insitu stress flow in porous media permeability corresponding stress-dependent permeability permeability change Upstream Oil & Gas aperture discontinuity numerical modeling...

... interaction force shear compression test concrete behavior element method cylindrical concrete specimen plane damage model compression Upstream Oil & Gas modeling particle Mech formulation reservoir simulation plasticity discrete element Bazant micro-plane damage model...

... are the mechanical parameters which can be assessed in distinct element modeling. Knowing that the strength conditions of discontinuities are determined by the stress distribution through the model and along discontinuities, this paper is concerned on the effect of selected stiffness values on Distinct Element...