Numerical Research on Energy Evolution and Burst Behavior of Unloading Coal–Rock Composite Structures
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-0609-5
Abstract: In order to research the evolution of energy stored in the composite coal-rock structure and coal fragments’ burst characteristics, lateral pressure unloading numerical tests of composite coal–rock models with different Young’s modulus were carried by… read more here.
Keywords: research; energy; burst; coal rock ... See more keywords
Numerical Simulation of the Fluid–Solid Coupling Process During the Failure of a Fractured Coal–Rock Mass Based on the Regional Geostress
Sign Up to like & getrecommendations! Published in 2018 at "Transport in Porous Media"
DOI: 10.1007/s11242-018-1110-6
Abstract: This paper presents a numerical approach to the simulation of fluid–solid coupling during the failure of a fractured coal–rock mass taking into consideration the regional geostress characteristics. We use the back calculation method to calculate… read more here.
Keywords: regional geostress; solid coupling; fluid solid; rock mass ... See more keywords
Characteristics of electromagnetic radiation signal of coal and rock under uniaxial compression and its field application
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Earth System Science"
DOI: 10.1007/s12040-019-1309-0
Abstract: Rockburst is a serious threat to the safety and efficiency of coal-mine production in China. Accurate monitoring and prediction of rockburst is an ongoing challenge in coal mining. Electromagnetic radiation (EMR) technology is a real-time… read more here.
Keywords: uniaxial compression; electromagnetic radiation; coal rock; coal ... See more keywords
Early-warning of rock burst in coal mine by low-frequency electromagnetic radiation
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2020.105755
Abstract: Abstract Rock burst is one of the major geological hazards in coal mines and is difficult to prevent. Faced with this problem, the low-frequency electromagnetic radiation (EMR) test experiments of coal and rock were conducted… read more here.
Keywords: rock burst; low frequency; coal rock; coal ... See more keywords
Study on the characteristics of coal rock electromagnetic radiation (EMR) and the main influencing factors
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2017.11.018
Abstract: Abstract Coal rock would produce electromagnetic radiation (EMR) in the loading process, but study on the influence factors influence on the coal rock EMR characteristics in the mesoscopic level is not insufficient. In the paper,… read more here.
Keywords: radiation emr; electromagnetic radiation; coal rock; coal ... See more keywords
Propagation behavior of hydraulic fracture across the coal-rock interface under different interfacial friction coefficients and a new prediction model
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2019.05.007
Abstract: Abstract Indirect fracturing from rocks to coal is a promising technology of coalbed methane exploitation in soft and low-permeability coal seams. Central to this technology is the prediction of the propagation path of the fluid-driven… read more here.
Keywords: coal rock; interface; interfacial friction; rock ... See more keywords
Ultrasonic imaging recognition of coal-rock interface based on the improved variational mode decomposition
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2020.108728
Abstract: Abstract Extracting effective ultrasonic echo signals in multilayered media is the key technology for detection of coal-rock interface, which is the basis of automatic height adjustment of the shearer drums during automatic coal mining. However,… read more here.
Keywords: rock interface; mode decomposition; coal rock;
Comparative study on fracture characteristics of coal and rock samples based on acoustic emission technology
Sign Up to like & getrecommendations! Published in 2021 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2020.102851
Abstract: Abstract Monitoring on the damage evolution process of the coal and rock mass in coal resource mining play a vital role in safe production and avoiding economic losses. This study aims at further improving effectiveness… read more here.
Keywords: process; rock samples; coal rock; damage ... See more keywords
Coupling Mechanism of Dissipated Energy–Electromagnetic Radiation Energy during Deformation and Fracture of Loaded Composite Coal and Rock
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c06511
Abstract: The nature of composite coal and rock fracture under load is the process of energy conversion inside it, and to explore the coupling mechanism of dissipated energy (DE) and electromagnetic radiation energy (ERE) during the… read more here.
Keywords: coal rock; composite coal; energy; electromagnetic radiation ... See more keywords
Coal–Rock Dynamic Disaster Prevention Mechanism Based on the Dual Loads of Dynamic Barrier and Static Pressure Relief by Hydraulic Slotting
Sign Up to like & getrecommendations! Published in 2023 at "ACS Omega"
DOI: 10.1021/acsomega.2c07240
Abstract: According to the characteristics of coal–rock dynamic disasters and hydraulic slotting, the mechanism of dynamic load barrier and static load pressure relief in hydraulic slotting is proposed. The stress distribution in a coal mining face… read more here.
Keywords: rock dynamic; hydraulic slotting; coal; coal rock ... See more keywords
Measurement and Inversion of the Stress Distribution in a Coal and Rock Mass with a Fault
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Geomechanics"
DOI: 10.1061/(asce)gm.1943-5622.0002184
Abstract: Abstract To more accurately determine the stress distribution law of coal and rock masses containing faults, the fA42 reverse fault of the Shihao coal mine is taken as an example to carry out an in... read more here.
Keywords: coal; stress distribution; coal rock;