Results 51 to 60 of about 324,854 (212)
Micro-damage model of gas-bearing coal under load and instability identification criteria
Meitan xuebaoThe distribution of pores and skeletons within coal reservoirs significantly affects the migration of gases and the occurrence of gas dynamic disasters. To further explore the micro-damage mechanisms in gas-containing coal, a detailed study of the micro ...
Baisheng NIE +10 more
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Size Effect on Acoustic Emission Characteristics of Coal-Rock Damage Evolution
Advances in Materials Science and Engineering, 2017 Coal-gas outburst, rock burst, and other mine dynamic disasters are closely related to the instability and failure of coal-rock. Coal-rock is the assemblies of mineral particles of varying sizes and shapes bonded together by cementing materials.
Zhijie Wen +4 more
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Research on the Characteristics of Coal Bump and Monitoring and Early Warning in Hujiahe Coal Mine
Geofluids, 2022 Under the high intensity mining disturbance, coal bump is easily triggered by the sudden release of large amount of elastic energy contained in the coal body, which seriously affects coal mine safety production.
Fei Yu, Tong Zhang, Zhen Wei
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Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase II [PDF]
, 2018 In Phase I of this project, graphene oxide (GO)-modified pervious concrete was developed using coal fly ash as the sole binder. The primary objectives of Phase II of this project were (1) to evaluate the stormwater infiltration capacity of GO-modified ...
Shi, Xianming, Xu, Gang
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Environmentally Friendly Pervious Concrete for Treating Deicer-Laden Stormwater: Phase I [PDF]
, 2015 A graphene oxide-modified pervious concrete was developed by using low-reactivity, high-calcium fly ash as sole binder and chemical activators and other admixtures.
Shi, Xianming, Xu, Gang
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Prediction of subsidence due to underground mining by artificial neural networks [PDF]
, 2003 Alternatively to empirical prediction methods, methods based on influential functions and on mechanical model, artificial neural networks (ANNs) can be used for the surface subsidence prediction.
Ambrožič, Tomaž, Turk, Goran
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Scientific ReportsStable underground tunnels and gas drainage boreholes are important guarantees for safe and efficient coal mining. The stability of these structures is closely related to the mechanical properties of coal and rock damage.
Jin Yan +3 more
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Applied SciencesMicrowave irradiation has become a potential technical method for coalbed degassing, which can effectively improve its permeability. A coupled electromagnetic—thermomechanical damage (ETMD) model was established to study the damage characteristics of ...
Yidu Hong, Shengyi Long, Xiaowan Sun
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Environmental Laws in Nigeria and Occurrence of Some Geohazards: A Review [PDF]
, 2017 Nigeria as a country is blessed with an abundance of both human and natural resources. Exploitation of natural resources in Nigeria over the years with little or no regard for the environment has increased susceptibility of parts of the country to ...
C. N. Chibo, I. E. Osumgborogwu
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Appalachian Coalfield Delegation Position Paper on Sustainable Energy [PDF]
, 2007 Appalachian grassroots groups(with support provided by the DataCenter) release a scathing report on the impact of coal mining to the United Nations Commission on Sustainable Development. The Delegation created an historic moment with its powerful stories
Harvard Ayers +6 more
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