... Excel software allows us to establish experimental rules of particle size distribution according to the distance from the axis of long cylindrical charge and experimental rules on the distribution of rock particle size in the broken volume by the method of least squares. The research results...

... dumps (Fig. 1). The earth materials are heterogeneous and loose geomaterials that consist of particles varying widely in sizes, ranging from boulder to clay (Gao et al., 2017; Shrivastava et al., 2021). The dump materials are stacked into layers in the nearby areas, and management of these dumps...

... Abstract The discrete element method is widely used in rock mechanics, but its computational efficiency limits its development. To improve the accuracy of a discrete element model, the particle size of the entire model needs to be decreased according to the current theory. However, only...

... widely in marine sediments which have different types of sediment matrix with different particle size distributions (PSD). The effect of the PSD of hydrate-bearing sediments has not been investigated clearly. In this paper, a direct shear test model of HBS is built using the discrete element method...

... modeling of the rock strength. geologist reservoir characterization particle engineering geology geological subdiscipline rock mechanic reservoir geomechanics simulation deformation international journal experiment rock engineering mechanism stiffness society iop publishing iop conf...

... is destroyed, the pores and cracks become more, by which the connection between the fibers and soil particles decreases, resulting in a decline in the soil's shear strength. 1. Introduction Adding fibers into soil is a common method of soil reinforcement, which involves mixing fibers into the soil...

... Abstract In the triaxial compression test of soil engineering, particle breakage may occur under the double action of axial and lateral loads. So, for the DDA simulation, the internal discretization of DDA block should be carried out at first. However, different discretization may affect...

... Abstract Particles in a regular arrangement will always be simplistically used in the discrete numerical analysis to represent materials ranging from steels to geomaterials (e.g., rock and concrete). As for those heterogeneous materials, this simplification violates reality more or less...

... that are able to entrain a great number of masses tend to be the most catastrophic. A fully coupled CFD-DEM technique is utilised here to evaluate the erosion effect of debris flow on the sand basal, in which basal is modelled via a non-cohesive particle assembly using DEM and debris flows are recognised...

... and meso-structure of rocks on thermal conductivity was discussed. The results show that the denseness, porosity, pore size distribution, the way of connection, quartz content between mineral particles and the degree of claying directly will affect the thermal conductivity of rock, among which...

... and environmental hazards [4,5] . society iop publishing iop conf structural geology drilling fluids and materials phyllosilicate lacustrine environment sedimentology depositional environment drilling fluid management & disposal particle environmental science 861 conference engineering...

... particle strength geology hydrate dem investigation geological subdiscipline geologist reservoir geomechanics environmental science 861 society iop publishing iop conf methane hydrate dem simulation breakage stiffness flow assurance creep conference boundary particle...

... china province particle rock type geological subdiscipline guizhou long-runout landslide shuicheng 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth and Environmental Science 861 (2021) 062015 doi:10.1088/1755-1315/861/6/062015 Dynamic analyses of high...

... geologist structural geology geological subdiscipline fracture characterization reservoir characterization mathematics of computing strike-slip fault tunnel liner environmental science 861 particle society iop publishing iop conf dimension conference underground space technology...

... mathematics of computing fluid dynamics hydrate hydrate saturation particle society iop publishing iop conf conference seepage characteristic flow in porous media sediment environmental science 861 permeability hydrate particle flow assurance hbss hydrate-bearing sediment...

... to serious fouling on the air-side tubes. However, the particle deposition characteristics on the tubes in the hot, humid, and solid loaded environment were unclarified. Therefore, in this study, experimental and theoretical analyses were performed to clarify the. The results indicated the following. (1...

... has far-reaching significance for the development of deep shale gas resources [1]. cement sheath geologist sedimentary rock clastic rock cement chemistry rock type wellbore design geology mudrock hydraulic fracturing wellbore integrity mudstone particle conference reservoir...

... Abstract This paper investigates the effect of the grain size distribution (GSD) on deformability of spherical particle assemblies using the distinct element method. The GSD is modeled by a normalized beta function, which allows variation of the size span (nearly monodisperse to highly...

... between the conglomerate samples and water. The mixed layer of chlorite/montmorillonite expanded, spread, and flocculated after water absorption, jammed the pores, and reduced the porosity. A certain number of calcite particles formed on the surface of grains or surrounded the micro-pores, resulting...

... of the material which reflects as the change in porosity due to particle rearrangement. This phenomenon results in fluid induced instabilities in the porous media which is commonly observed during CO 2 sequestration, oil and hydrocarbon recovery, high pressure grouting, hydraulic fracturing. Solid-fluid...