Results 21 to 30 of about 18,203 (209)

Study on Deformation and Fracture Evolution of Underground Reservoir Coal Pillar Dam under Different Mining Conditions

Geofluids, 2022
Coal mine underground reservoir water storage technology is an effective technical way to achieve high efficiency of coal mining and protection of water resources. The stability of coal pillar dam plays a decisive role in the safe and stable operation of
Liu Xuesheng, Song Shilin, Wu Baoyang, Li Xuebin, Yang Kang   +4 more
doaj   +2 more sources

Underground Reservoirs Regulate the Composition and Metabolism of Microbial Community in Coal Mine Water. [PDF]

ACS Omega
Underground reservoirs were used to purify water through filtration, adsorption, and biodegradation methods in coal mines. However, their effects on the composition and metabolism of microbial communities in mine water remain unknown. In this study, influent and effluent samples from underground reservoirs in seven coal mining areas were analyzed to ...
Li Y, Wu M, Zhang H, Jiang B, Bao Y, Li J, Li J, Li P, Yan X, Qin T.   +9 more
europepmc   +4 more sources

Water Quality Characteristics and Water-Rock Interaction Mechanisms of Coal Mine Underground Reservoirs. [PDF]

ACS Omega
Constructing underground reservoirs in coal mines can effectively improve the recycling of mine water. Water-rock interactions within underground reservoirs have been demonstrated to improve water quality; however, the mechanisms underlying these water-rock interactions remain unclear, hindering the widespread applications of underground reservoirs ...
Zhang H, Jiang B, Zhang H, Li P, Wu M, Hao J, Hu Y.   +6 more
europepmc   +4 more sources

Water-Rock Interaction Mechanisms and Hydrochemical Evolution in the Underground Reservoirs of Coal Mines. [PDF]

ACS Omega
Coal-mine underground reservoirs play pivotal roles in water purification through water-rock interactions; however, underlying mechanisms associated with water-rock interactions remain unclear to date. To address this issue, this study considered the underground reservoirs of the Daliuta coal mine, Shendong to conduct the analysis.
Zhang H, Jiang B, Zhang H, Li P, Wu M, Hao J, Hu Y.   +6 more
europepmc   +4 more sources

Safety study on influence of underground coal mining on surface reservoir dam in southern Yuheng Mining Area

Meikuang Anquan, 2021
Taking Weiqiang Coal Mine 1313 working face as an example, through the analysis of mine geological, hydrogeological conditions, the main water-filled source and water-filled channel of working face mining are determined, and the surface collapse caused ...
WEI Xiaonong, FANG Gang, LIU Yang, LIU Xinghe, BAI Jing
doaj   +2 more sources

Strength hardening and damage mechanism of semiwetted coal under cyclic loads with different initial stress levels. [PDF]

Sci Rep
When a coal pillar serves as part of the dam structure in an underground coal mine reservoir, it is subjected to the combined effects of water immersion and dynamic loading. Therefore, understanding the mechanical properties of coal under such conditions
Lv F, Zhang Y, Kong F, Li X, Zou Q.
europepmc   +2 more sources

Research on the Capacity of Underground Reservoirs in Coal Mines to Protect the Groundwater Resources: A Case of Zhangshuanglou Coal Mine in Xuzhou, China

Water, 2023
This study analyzes the ability of coal mine underground reservoirs to protect groundwater resources. As the demand for coal mining continues to increase, the potential impact on groundwater resources around mines has become a growing problem. Underground water reservoirs, also known as coal mine underground reservoirs, have been constructed as a ...
Chenghang Zhang, Bin Luo, Zhimin Xu, Yajun Sun, Lin Feng   +4 more
openaire   +3 more sources

A Review of Stability of Dam Structures in Coal Mine Underground Reservoirs

Water
Coal has remained the primary component of China’s energy structure, and high-intensity extraction has continued in the central and western coal-producing regions of China. In contrast to the abundant coal resources, water resources have become extremely scarce in these regions, creating a conflict between coal resource extraction and water resource ...
Yan Wang, Fei Liu, Miaomiao Kou, Mingfei Li   +3 more
openaire   +3 more sources

Softening and instability evolution of strip coal pillar under water immersion in goaf. [PDF]

Sci Rep
The softening and instability of the coal pillar caused by water immersion is the primary factor contributing to water inrush in the goaf of the same layer.
Wang X, Yin S, Lian H, Cao M, Hou E, Xia X, Yi S, Yan T, Li Q, Wang H.   +9 more
europepmc   +2 more sources

Influence of spatial structure migration of overlying strata on water storage of underground reservoir in coal mine. [PDF]

PLoS One
Underground reservoir technology for coal mines can realize the coordinated development of coal exploitation and water protection in water-shortage-prone areas. The seepage effect of the floor seriously affects the safety of underground reservoirs under the action of mining damage and seepage pressure.
Cao Z, Jing S, Wang L, Meng F, Han Y.
europepmc   +4 more sources