rock fracture
Three-Dimensional Geostatistical Analysis of Rock Fracture Roughness and Its Degradation with Shearing
... the spatial structure in intact and degraded areas of rock fracture surfaces. To do end, the morphology of plaster replicas of three natural rock fractures with different roughness characteristics ...
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Numerical simulation of rock fracture using three dimensional extended discrete element method
... of rock sample and propagates ...the rock with initially symmetric fcc configuration (case A), and oblique if connections be- tween the elements are randomly reduced (case ...the rock and the ...
12
Onset Time Determination of Acoustic and Electromagnetic Emission During Rock Fracture
... from rock fracture is determined through the joint auto-regressive modelling of the noise and the signal, and the application of the Akaike Information Criterion (AIC ) using the onset time as ...
12
Mechanical and hydraulic behavior of a rock fracture under shear deformation
... within rock representing fracture profiles, and this is beneficial for the identification of the relationship between the microstruc- ture and hydraulic characteristics of the ...
17
Prediction of volcanic rock fracture in Yingcheng Formation, Songliao basin
... volcanic rock reservoir is ...volcanic rock formation of epigenetic cracks can improve the permeability of volcanic rock conditions, modified volcanic rock class can become a good reservoir of ...
6
Rock fracture grouting with microbially induced carbonate precipitation
... planar fracture whereas networks of interconnected frac- tures of different aperture and orientation are likely to be encountered in the ...grouting fracture networks, MICP has an advantage over many other ...
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Analytical Solution for Stress Field and Intensity Factor in CSTBD under Mixed Mode Conditions
... unique fracture toughness test method suggested by the International Society for Rock Mechanics (ISRM) ...chevron-notched rock fracture specimens, chevron bend (CB) and short rod (SR), ...
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Simulation of rock shear fracture in the case of different inclined notches
... Understanding Rock Fracture mechanism is essential in civil engineering ...for rock failure. This study was conducted to evaluate shear strength of rock (Sandstone) specimens with different ...
6
Experimental and Numerical Investigation of Rock Dynamic Fracture
... of rock engineering processes such as drilling, blasting, mining and mineral ...processing. Rock dynamic fracture mechanics methods are required to characterize the rock behavior in these ...
10
Thermal transport in a coupled sinusoidal fracture-matrix system
... the fracture is studied in a coupled fracture-matrix system with sinusoidal fracture ...the fracture, which advances gradually extracting heat from the adjacent reservoir ...the ...
6
Research on improving the environment of tunnel using mine geothermal effect
... from rock fracture and stress relationship ， built model of heat and moisture exchange between inlet airflow and low temperature rock layer, Based on Jiudian Gold original main inlet air system, ...
5
Analysis of the First Cracks Generating Between Two Holes Under Incremental Static Loading with an Innovation Method by Numerical Modelling
... hard rock quarry mining, especially in granitic ...the rock blocks, directly. It needs to predict the rock fracture process which it depends on the length of the first cracks and the growing ...
10
Piezo stimulated currents in marble samples: precursory and concurrent-with-failure signals
... ety of the marble, such as muscovite, sericite and chlorite (Kleftakis et al., 2000). Its content in quartz is very low, about 0.2%. Its density is 2.7 g/cm 3 and its porosity is ap- proximately 0.4%. Calcite crystals ...
5
Earth'sResources
... Igneous Rock Granite, Pumice, Basalt Sedimentary Rock Shale, Sandstone, Limestone Metamorphic Rock Slate, Quartzite, Marble Magma (Molten Rock) Weathering Weathering Erosion Erosion Tran[r] ...
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Imaging Rock Density Distribution beneath Liwa Fracture Zone in the Southern Part of the Great Sumatran Fault System, Indonesia
... of rock density contrast at the subsurface that can be measured either directly or indirectly in the form of gravity ...Liwa fracture zone of the southern segment of the Sumatran Fault Zone (hereafter, ...
17
Simple Correlations between Rock Abrasion and Other Significant Rock Properties for Rock Mass and Intact Quartzite
... indicate rock in tension obtained from the Brazilian disk ...same rock type which consisted of quartzite or hornfels/quartzite and from nearby drill holes keeping the consistency of weathering and altera- ...
15
Experimental study and numerical modeling of fracture propagation in shale rocks during Brazilian disk test
... quasi-static fracture model is used for the simulation of fractures in Bra- zilian disks; a quasi-static modeling framework is known to be sufficient for prediction of multiple fractures in Brazilian disks (see ...
22
An automated fracture trace detection technique using the complex shearlet transform
... Manual fracture inter- pretation from images often involves the step of classi- fying fracture traces into separate sets based on ground truth observations or with respect to fracture ...two ...
30
What happens to fracture energy in brittle fracture? Revisiting the Griffith assumption
... Griffith fracture theory provides a simple explana- tion of the stress requirements for a crack to enlarge: a crack will propagate when the forces holding two sides of a po- tential crack together are exceeded by ...
11
An Experimental and Numerical Study on the Effect of Loading Type and Specimen Geometry on Mode-I Fracture Toughness of Rock
... the fracture toughness of SNBD and DT specimens were numerically ...model fracture toughness, some models were modeled in a dimensionless way in the ...
10