Results 51 to 60 of about 3,077,132 (240)
SustainabilityMonitoring and preventing coal–rock dynamic disasters are essential for ensuring sustainable and safe mining. Induced charge monitoring, as a geophysical method, enables sustainable monitoring of coal–rock deformation and failure.
Jinguo Lyu +3 more
semanticscholar +1 more source
Coal mining-induced composite damage to geological bodies and geological guarantee against damage reduction [PDF]
Objective and Background Coals have long served as a predominant energy source in China. With an increase in mining scale and intensity in recent years, the correlations between rocks, soils, hydrosphere, and ecological environment in coal mining areas ...
Qiang SUN +10 more
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Mechanisms underlying coal instability during coal and gas outbursts induced by deep mining
Meitian dizhi yu kantanObjective The gradual depletion of shallow coal resources drives a shift to the mining of deep coal seams. However, the complex deep mining environment significantly increases the potential risks and severity of coal and gas outbursts.
Chaolin ZHANG +6 more
doaj +1 more source
Alexandria Engineering Journal, 2021 In deep coal and rock mass engineering, extensive initial damage problems caused by excavation and unloading are critical to the long-term deformation and stability of underground projects.
Peng Huang +4 more
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Bedding Effect on the Deformation: Damage Differentiation of Coal Mass
Shock and Vibration, 2022 In order to reveal the mechanical properties and damage mechanism of coal with parallel multibedding under stress disturbance, the raw coal samples with parallel multibedding were selected. The uniaxial compression and acoustic emission damage measurement were carried out using the coal-rock mechanics damage coupling test system, revealing the bedding ...
Liu Shaoqiang +5 more
openaire +2 more sources
A Novel Damage Model for Strata Layers and Coal Mass [PDF]
Energies, 2020 Coal burst occurrences are affected by a range of mining and geological factors. Excessive slipping between the strata layers may release a considerable amount of strain energy, which can be destructive. A competent strata is also more vulnerable to riveting a large amount of strain energy. If the stored energy in the rigid roof reaches a certain level,
Faham Tahmasebinia +4 more
openaire +2 more sources
, 2015 Based on coal mining above aquifers of Carboniferous limestone in a coal mine in North China Mining Area, the numerical method of CDEM (Continuum-based Discrete Element Method) was employed to simulate the movement of overburden stratum and damage ...
Jiao ZH, Li YQ, Yuan RF(袁瑞甫)
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Damage law and mechanism of coal-rock joint structure induced by liquid nitrogen at low temperature
Scientific Reports, 2022 The width and degree of connectivity of coal-rock joints directly affect the seepage capacity of flow energy such as gas. To study the damage law and mechanism of the coal-rock joint structure under the action of liquid nitrogen, two methods of liquid ...
Hewan Li +4 more
doaj +1 more source
Coal and health in the Hunter: lessons from one valley for the world [PDF]
, 2015 Once an unquestioned source of economic prosperity, the damage caused by coal to people’s health, natural capital and the global climate has led to closer scrutiny of its impacts.
Fiona Armstrong
core
Meitan xuebao, 2023 In the mining of nearly horizontal open-pit coal mines, transportation flat plates are usually arranged on the end-slope. Reciprocating transport operations of large heavy-duty trucks cause significant cyclic loading and unloading effects on the ...
Yanlong CHEN +5 more
doaj +1 more source