Results 11 to 20 of about 1,809 (225)
Characterization of Coal Porosity for Naturally Tectonically Stressed Coals in Huaibei Coal Field, China [PDF]
The Scientific World Journal, 2014 The enrichment of coalbed methane (CBM) and the outburst of gas in a coal mine are closely related to the nanopore structure of coal. The evolutionary characteristics of 12 coal nanopore structures under different natural deformational mechanisms (brittle and ductile deformation) are studied using a scanning electron microscope (SEM) and low ...
Xiaoshi Li +5 more
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Determination of loading mechanical characteristics of in-situ tectonic coal
Meikuang Anquan, 2022 Based on the cold forming theory, taking density and permeability as indicators, a high-pressure cyclic loading and unloading method was used to prepare a standard coal briquette with a degree of compaction similar to that of underground in-situ ...
LI Wenshan, ZHANG Hao, JIN Zhixin
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Applied Sciences, 2020 Coalbed methane is a double-edged sword with two attributes of energy and hazard in coal mines. Gas drainage is the most direct and effective measure for gas recovery and disaster prevention in coal mines, which is seriously affected by the mechanics and
Chaolin Zhang +3 more
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International Journal of Mining Science and Technology, 2022 Compared to intact coal, tectonic coal exhibits unique characteristics. The deformation behaviours under cyclic loading with different confining pressures and loading rates are monitored by MTS815 test system, and the mechanical and energy properties are
Deyi Gao +6 more
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Meitan kexue jishu, 2023 Dynamic disasters such as coal and gas outburst seriously restrict the safety of mine production. Different types of coal particles reflect the coal structure, mechanical characteristics and energy storage behavior under load, which is of great ...
Wei LI +5 more
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Applied Sciences, 2019 Tectonic coal is a kind of soft coal that is generated during tectonic movement. Gas outbursts usually occur in seams containing both virgin coal and tectonic coal.
Pengxiang Zhao +7 more
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Experimental Study on the Mechanical Properties of Tectonic Coal Using Reconstituted Coal Specimens
Sustainability, 2023 Tectonic coal, an aggregate of coal particles formed by compacting pulverized coal, has been developed extensively in China. Currently, reconstituted coal specimens are widely adopted to investigate the mechanical properties of tectonic coal, but they have a low compaction degree compared to the tectonic coal in the field.
Yubo Wang +3 more
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Frontiers in Earth Science, 2022 Tectonically deformed coals (TDCs) are of great importance to coalbed methane exploitation and coal mining safety. Compared to primary coals, reservoir properties of TDCs have been transformed greatly by tectonic stress.
Ningyuan Zhang, Suping Yao, Yuhui Wang
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Geophysical Monograph Series, Page 263-304., 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.
Jessica H. Whiteside +3 more
wiley +7 more sources
矿业科学学报, 2018 The distribution of tectonic coal is of great importance to the exploration and development of coal-bed methane and the safety production of coal mine.The Zhaozhuang coal mine in Jincheng mining area is took as example.Firstly, the vertical distribution ...
Zou Guangui, Li Laichun
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