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Estimation of the equivalent elastic modulus in shale formation: Theoretical model and experiment
Anisotropy is prevalent in sedimentary rock masses, such as shale formations that contain numerous inherent bedding planes (BPs) and …
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A new theoretical model for guiding the gas extraction in coal mines
Based on the fractal-percolation properties, the equivalent permeability analysis of 3-D discrete fracture network models are …
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Computational model coupling mode II discrete fracture propagation with continuum damage zone evolution
We propose a numerical method that couples a cohesive zone model (CZM) and a finite element-based continuum damage mechanics (CDM) …
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Fracture size estimation using data from multiple boreholes
The size of a fracture within a rock mass can be obtained using data sampled from boreholes or exposed surfaces. In this study, …
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Coal permeability model on the effect of gas extraction within effective influence zone
In situ gas extraction is the main measure adopted by mines to achieve mining safety standards. Coal permeability is significantly …
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Elliptical fracture network modeling with validation in Datong Mine, China
Roof-coal recovery rate and the performance of gas extraction are essentially controlled by the fractures within coal-rock mass. Thus, …
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Analytical expressions for the size distribution function of elliptical joints
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Relevance between abutment pressure and fractal dimension of crack network induced by mining
Based on the geological conditions of coal mining face No. 15-14120 at No. 8 mine of Pingdingshan coal mining group, the real-time …
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A general method to determine the stress intensity factor of multiple collinear cracks
In this study, the issue of multiple collinear cracks in a finite plate is studied, and the overall stress field as well as stress …
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