Results 11 to 20 of about 337,035 (306)
Advances in Civil Engineering, 2023 Water inrush is the biggest threat for safe mining in the Ruifeng coalmine, located in North China. In the study mining area, the floor water inrush is mainly caused by mining activities and collapse column.
Run Liu +3 more
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Application of fiber optic sensors for vibration and ignition monitoring of a belt conveyor system [PDF]
, 2019 The belt conveyor serves as the main coal transport equipment in a coal mine and its safe operation is the lifeline of safety in coal mine production.
Grattan, K. T. V. +7 more
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Coal mine low power laser methane detection and alarm instrument [PDF]
, 2019 At present, the portable carrier catalytic methane detection and alarm instrument for coal mine generally has many problems, such as high power consumption, short standby time, low detection accuracy, few parameters and single function, which can not ...
Grattan, K. T. V. +7 more
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Advances in Civil Engineering, 2021 During the grouting operation in the underground coal mine, abnormal curing behaviors such as foaming and drainage often lead to the loss of reinforcement effect of the polyurethane/water glass (PU/WG) materials on coal walls and even cause safety ...
Xiaofeng Yu +4 more
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Recovery of Coal Mine Methane and Its Utilization with a Newly Developed Gas Concentration System
Journal of MMIJ, 2018 Kushiro Coal Mine is located in southeast of Kushiro-City, Hokkaido, Japan and the only underground as well as under seabed coal mine. Paleogene Harutori Coal Bearing Formation is mined over the long period.
Hiroyuki MATSUMOTO +4 more
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Geologic considerations in underground coal mining system design [PDF]
, 1981 Geologic characteristics of coal resources which may impact new extraction technologies are identified and described to aid system designers and planners in their task of designing advanced coal extraction systems for the central Appalachian region ...
Camilli, F. A. +3 more
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Load Capacity of steel arches with shotcrete coating [PDF]
E3S Web of Conferences, 2019 The shotcrete technology (application of a concrete layer) is widely used in coal mines. The applied layer of shotcrete to the underground workings support, changes the load capacity of the entire supporting system (and its elements).
Ficek Paweł +3 more
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Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry [PDF]
, 2019 The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of ...
Chang, J. +7 more
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Advances in Materials Science and Engineering, 2022 According to the universal law of thermodynamics, the failure of any substance is closely related to its energy change. Understanding the strain energy and rock burst tendency of rock or coal under different loading rates is critical in many geological ...
Jiang Hu, Jingang Li
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Underground Coal Gasification Efficiency in Areas of High Faulting Frequency [PDF]
, 2017 The purpose of this paper is substantiating of efficiency during application of borehole underground coal gasification technology based on target coal seam geology.
Lozynskyi, Vasyl
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