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Molecular dynamics simulations of CH4 diffusion in kaolinite: influence of water content
Springer Science and Business Media LLC - Tập 6 - Trang 556-563 - 2019
Understanding the interaction of CH4 with kaolinite is significant for
researchers in the fields of coalbed CH4 and shale gas. The diffusion behaviors
of CH4 in kaolinite with water contents ranging from 0 to 5 wt% have been
analyzed by molecular dynamics simulations. The results of the simulations
indicate that CH4 molecules can jump between adjacent holes in the kaolinite
matrix. CH4 diffusion c...
Semi-enclosed experimental system for coal spontaneous combustion for determining regional distribution of high-temperature zone of coal fire
Springer Science and Business Media LLC - - 2022
AbstractTemperature variation and gas generation at different depths and
positions in the coal combustion process were studied to determine the
propagation and evolution of high temperature regions in the process of coal
spontaneous combustion. This study selected coal samples from Mengcun, Shaanxi
Province, People’s Republic of China, and developed a semi-enclosed experimental
system (furnace) fo...
Method for designing the optimal sealing depth in methane drainage boreholes to realize efficient drainage
Springer Science and Business Media LLC - Tập 8 - Trang 1400-1410 - 2021
The purpose of underground methane drainage technology is to prevent methane
disasters and enable the efficient use of coal mine methane (CMM), and the
sealing depth is a key factor that affects the performance of underground
methane drainage. In this work, the layouts of in-seam and crossing boreholes
are considered to analyze the stress distribution and failure characteristics of
roadway surroun...
Division of carbon sink functional areas and path to carbon neutrality in coal mines
Springer Science and Business Media LLC - - 2022
AbstractRemote sensing image data of typical mining areas in the Loess Plateau
from 1986 to 2018 were used to analyze the evolution of land use, explore the
division of carbon sink functional areas, and propose carbon neutrality paths to
provide a reference for the coal industry carbon peak, carbon-neutral action
plan. Results show that (1) land use has changed significantly in the Pingshuo
mining...
Underground location algorithm based on random forest and environmental factor compensation
Springer Science and Business Media LLC - Tập 8 - Trang 1108-1117 - 2021
Aiming at the poor location accuracy caused by the harsh and complex underground
environment, long strip roadway, limited wireless transmission and sparse anchor
nodes, an underground location algorithm based on random forest and compensation
for environmental factors was proposed. Firstly, the underground wireless access
point (AP) network model and tunnel environment were analyzed, and the
finge...
Laboratory investigation into the use of soundless chemical demolitions agents for the breakage of hard rock
Springer Science and Business Media LLC - Tập 9 Số 1 - 2022
AbstractThe method of drilling and blasting with explosives is widely used in
rock fragmentation applications in the mining industry for mine development and
ore production. However, the use of explosives is associated with rigorous
safety and environmental constraints as blasting creates toxic fumes, ground
vibrations, and dust. This study is focused on the use of Soundless Chemical
Demolition Ag...
Research progress of monitoring, forecasting, and prevention of rockburst in underground coal mining in China
Springer Science and Business Media LLC - Tập 1 - Trang 278-288 - 2014
As one of the dynamic disasters of coal mines, rockburst seriously affects
underground safe coal mining. Based on the laboratory test, field test, and
theoretical analysis, this study proposed the principle of the rock burst
induced by the combination of dynamic and static stresses and divided such rock
burst into three types, including induced by primary dynamic stress, mainly
induced by dynamic ...
Reasonable location of stopping line in close-distance underlying coal seam and partition support of large cross-section roadway
Springer Science and Business Media LLC - Tập 9 - Trang 1-22 - 2022
Close-distance coal seams are widely distributed over China, and the coal
pillars left by the overlying coal seams affect the retracement channel of the
underlying coal seam in the stopping stage. Based on the engineering background
of close-distance seam mining in a coal mine, the reasonable position of the
underlying coal seam's stopping line and the support method of the large section
roadway d...
Clean coal geology in China: Research advance and its future
Springer Science and Business Media LLC - Tập 7 Số 2 - Trang 299-310 - 2020
AbstractIn China, the connection between coal utilization and environmental
pollution has been increasingly evident due to the rapid growth in energy
consumption. Clean coal technology (CCT) is one of the effective methods to
address coal-associated pollution. However, CCT needs the practical and
theoretical support of clean coal geology (CCG). In this paper, a new definition
of CCG is proposed, b...
Petrographic characteristics and paleoenvironmental history of Eocene lignites of Cambay basin, Western India
Springer Science and Business Media LLC - - 2017
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