Results 91 to 100 of about 72,151 (302)

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+2 more sources

Fuel-Efficient Road Classification Methodology for Sustainable Open Pit Mining

open access: yesApplied Sciences
The roughness of haul roads significantly impacts fuel consumption in open-pit coal mine trucks, yet there is currently a lack of quantitative road classification methods in this regard.
Boyu Luan   +4 more
doaj   +1 more source

Wpływ optymalizacji kopalń odkrywkowych na rozwiązanie modelu bilateralnego monopolu: kopalnia & elektrownia w długim okresie [PDF]

open access: yes
THE INFLUENCE OF LIGNITE OPENCAST MINE OPTIMISATION ON SOLUTION OF BILATERAL MONOPOLY MODEL OF LIGNITE MINE & POWER PLANT IN LONG RUN The classical and modified solution of bilateral monopoly for the system of opencast mine and power plant has been ...
Jurdziak, Leszek
core   +1 more source

An enhanced classification of artificial ground [PDF]

open access: yes, 2010
This report describes a detailed scheme for the mapping and recording of artificial ground. It presents codes and descriptions that underpin the entries in the British Geological Survey stratigraphical ...
Cooper, A.H.   +4 more
core  

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

open access: yesDeep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li   +4 more
wiley   +1 more source

Characteristics of dust pollution and its influencing factors during cold period of open-pit coal mines in northern China

open access: yesFrontiers in Earth Science
IntroductionWinter dust pollution in China’s northern open-pit coal mines is serious, and the prevention and control of winter dust pollution is one of the important problems in the construction of green mines in northern open-pit coal mines.MethodsIn ...
Heng Wang   +4 more
doaj   +1 more source

Revegetation Research on Coal Mine Overburden Materials in Interior to Southcentral Alaska [PDF]

open access: yes, 1987
This report was reprinted from Focus on Alaska's Coal '86: Proceedings of the Conference MIRL Report Number 72. The pagination in the original publication has been retained.
Mitchell, Wm. W.
core  

Home - About - Disclaimer - Privacy