Results 51 to 60 of about 157 (114)

Experimental Study on Shear Characteristics of Coal Samples in Different Water-Bearing States

Advances in Civil Engineering
During the establishment of the coal mine goaf reservoir, the strength of the coal pillar dam was weakened by various water–rock interactions triggered by water movement. To explore the influence of the water-bearing state on the shear characteristics of
Yang Wu, Lujun Wang, Baoyang Wu, Ze Xia
doaj   +1 more source

Influence of Moisture on Mechanical Properties and Energy Dissipation Characteristics of Coal–Rock Combined Body

Applied Sciences
Focusing on underground reservoir coal pillar dams subjected to long-term water immersion, this study employed a self-developed non-destructive water saturation apparatus to prepare monolithic and composite coal–rock specimens with varying moisture ...
Yukuan Fan, Qiang Xu, Ze Xia, Chuangkai Zheng   +3 more
doaj   +1 more source

Strength Deterioration and Sensitivity Analysis of Coal Samples Under Different Immersion Times for Underground Water Reservoirs

Applied Sciences
In the coal pillar dam of underground water reservoirs, groundwater exerts a certain degree of dissolution and erosion on the coal body, inducing the development of internal cracks and the deterioration of its mechanical properties.
Meng Li, Yong Zhang, Zhangjie Yin, Lujun Wang, Yang Wu, Shihao Xing   +5 more
doaj   +1 more source

Influence of Water Immersion on Coal Rocks and Failure Patterns of Underground Coal Pillars Considering Strength Reduction

Applied Sciences
The long-term immersion of coal rock may affect its mechanical properties and failure modes, potentially impacting the stability of coal pillars. This work aims to investigate the influence of the immersion duration on the mechanical properties and ...
Haihua Zhu, Peitao Wang, Kewei Zhang, Yijun Gao, Zhenwu Qi, Meifeng Cai   +5 more
doaj   +1 more source

Degradation mechanism of microstructure of residual coal pillars during highly mineralized mine-water storage in coal mine goaf

Underground Space
Driven by the “dual carbon” strategy, the functionality of coal mine underground reservoirs is transitioning toward multimedia collaborative storage, such as CO2 geological sequestration and strategic energy reserves.
Hao Liu, Zenghui Zhao, Qing Ma, Xiaoli Liu, Longjie Zhu   +4 more
doaj   +1 more source

Pore and strength damage evolution mechanism of coal induced by the circulating water immersion effect

矿业科学学报
As the main bearing structure of the reservoir in the goaf of the mine, the damage instability mechanism under the influence of multi-field coupling of water immersion directly restricts the long-term safe and stable operation of the reservoir in the ...
WANG Fangtian, ZHANG Cun, TANG Tiankuo, JIA Sheng, CHENG Jiazhang, DOU Fengjin   +5 more
doaj   +1 more source

Research on comprehensive detection and visualize of hidden cavity goaf. [PDF]

Sci Rep, 2022
Cao B, Wang J, Du H, Tao Y, Liu G.
europepmc   +1 more source

Similar simulation of overburden movement characteristics under paste filling mining conditions. [PDF]

Sci Rep, 2023
Wu P, Zhao J, Jin J.
europepmc   +1 more source

Preparation a High-Performance of Gangue-Based Geopolymer Backfill Material: Recipes Optimization Using the Taguchi Method. [PDF]

Materials (Basel), 2023
Yang S, Zhu H, Pang S, Ruan Z, Lin S, Ding Y, Cao P, Shen Z.   +7 more
europepmc   +1 more source

Solar energy and regional coordination as a feasible alternative to large hydropower in Southeast Asia. [PDF]

Nat Commun, 2021
Siala K, Chowdhury AK, Dang TD, Galelli S.   +3 more
europepmc   +1 more source