Results 1 to 10 of about 1,870 (152)
Statistical Analysis of Acoustic Emission in Uniaxial Compression of Tectonic and Non-Tectonic Coal [PDF]
Applied Sciences (Switzerland), 2020 Tectonic coal has become an important research topic for preventing coal mine disasters and for exploring and developing coal-bed methane resources.
Xiang Jiang, Song Ren, Ren Song
exaly +4 more sources
Discussion on concept and classification of tectonic coal seam
Meikuang Anquan, 2022 In view of the important role of tectonic coal in coal mine safety production and CBM resource development, on the basis of systematically reviewing the relevant research on tectonic coal at home and abroad, the necessity of defining tectonic coal seam ...
FU Jiangwei, FU Xuehai, LI Peng, ZHANG Yang
doaj +2 more sources
The characteristics of methane adsorption capacity and behavior of tectonic coal
Frontiers in Earth Science, 2023 The research of methane adsorption on tectonic coal is an important content to gas disaster prevention and coalbed methane (CBM) exploration in outburst coal seams.
Hang Zhang +5 more
doaj +2 more sources
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
Shuxun Sang, Jishi Geng
exaly +3 more sources
Study of the vibration frequency characteristics of tectonic coal containing assemblages at different loading rates. [PDF]
Sci RepTo reduce the vibration frequency superimposed on the original vibration frequency of a coal seam containing structural coal, damage to the coal structure should be reduced, and the occurrence of coal and natural gas outburst accidents should be ...
Zhao P +7 more
europepmc +2 more sources
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
doaj +2 more sources
The Effect of a Tectonic Stress Field on Coal and Gas Outbursts [PDF]
The Scientific World Journal, 2014 Coal and gas outbursts have always been a serious threat to the safe and efficient mining of coal resources. Ground stress (especially the tectonic stress) has a notable effect on the occurrence and distribution of outbursts in the field practice.
Fenghua An, Yuanping Cheng
doaj +3 more sources
Deformation energy of tectonic coal and its role in coal and gas outbursts
Meitan xuebaoCoal and gas outburst is an underground dynamic disaster driven by coal deformation energy and gas expansion energy. Although the comprehensive effect hypothesis of outbursts has been widely recognized, the role of coal deformation energy in outbursts ...
Yuanping CHENG, Chenghao WANG
doaj +2 more sources
Controlling effect of tectonic stress field on coal and gas outburst
Meitan xuebao, 2023 To investigate the controlling effect of tectonic stress field on coal and gas outburst, the gas geology, tectonophysics and rock mechanics methods were applied to analyze the influences of tectonic stress field on tectonic coal, in-situ stress and coal ...
Deyong GUO +3 more
doaj +1 more source
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
openaire +3 more sources