Journal ArticleDOI
Fracture failure analysis of hard–thick sandstone roof and its controlling effect on gas emission in underground ultra-thick coal extraction
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TLDR
In this article, the authors analyzed the fracture failure of a hard-thick sandstone main roof in a coal mine and found that the failure of the roof can cause strata pressure behaviors, rock-bursts and abnormal gas emissions, which may result in equipment damages and casualties.About:
This article is published in Engineering Failure Analysis.The article was published on 2015-08-01. It has received 85 citations till now. The article focuses on the topics: Coal mining & Fracture (geology).read more
Citations
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Gas diffusion in coal particles: A review of mathematical models and their applications
TL;DR: A review of the state of the art on the gas diffusion in coal particles from the aspects of definition, mathematical models, experimental methods, and applications in environment, energy and mining safety areas is presented in this paper.
Journal ArticleDOI
Mechanical failure mechanisms and forms of normal and deformed coal combination containing gas: Model development and analysis
TL;DR: In this article, the role of failure of different combinations of deformed coal on coal and gas outbursts was analyzed, and the expressions of interfacial stress induced by uncoordinated horizontal deformation were derived.
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Strata Behaviors and Rock Burst–Inducing Mechanism under the Coupling Effect of a Hard, Thick Stratum and a Normal Fault
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Fracture failure analysis of hard and thick key layer and its dynamic response characteristics
Lishuai Jiang,Lishuai Jiang,Quansen Wu,Quansen Wu,Quanlin Wu,Pu Wang,Yanchao Xue,Peng Kong,Bin Gong +8 more
TL;DR: In this article, the authors used the theoretical analysis method to deduce the calculation method of the fracture failure of hard and thick key strata in coal mine, based on the occurrence law of microseismic (MS) events and the characteristics of surface subsidence.
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Inducing mode analysis of rock burst in fault-affected zone with a hard–thick stratum occurrence
TL;DR: Wang et al. as mentioned in this paper used UDEC numerical simulation to study the movement characteristics of a hard-thick stratum affected by a fault in a coalmine to predict the dynamic hazards (i.e., rock bursts and shock bumps) because of the particular structural and mechanical properties of the HTS and the fault.
References
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Journal ArticleDOI
Reservoir Engineering in Coal Seams: Part 1-The Physical Process of Gas Storage and Movement in Coal Seams
TL;DR: In this article, the first two papers concerning the movement of gas in coal seams were published, and they dealt directly with the physical behavior of the coal seam as a reservoir, and showed that coal seams show considerable differences in behavior from normal porous gas reservoirs in both the mode of gas storage and permeability characteristics.
Journal ArticleDOI
An estimation method for cover pressure re-establishment distance and pressure distribution in the goaf of longwall coal mines
TL;DR: In this paper, the authors proposed a method for estimating the distance to return of the cover pressure and the stress distribution in the goaf of flat-lying longwall panels where the caving is bulking controlled.
Journal ArticleDOI
Numerical simulation of cumulative damage and seismic energy release during brittle rock failure-Part I: Fundamentals
Chunan Tang,Peter K. Kaiser +1 more
TL;DR: In this article, the authors present a numerical approach for the simulation of damage initiation and propagation causing seismic energy release during unstable failure of brittle rock, which is assumed that the radiated energy is equal to the energy stored in the element before failure is triggered.
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