Results 11 to 20 of about 2,137,122 (310)

Mechanism of Hard-Roof Rock Burst Control by the Deep-Hole Blasting: Numerical Study Based on Particle Flow

Shock and Vibration, 2021
In underground coal mines, the deep-hole blasting (DHB) technology is generally adopted for thick hard-roof control. This technology uses the energy released by explosives to weaken the energy storage capacity of hard roof so as to prevent hard-roof rock
Anliang Lu, Linming Dou, Jinzheng Bai, Yanjiang Chai, Kunyou Zhou, Jiliang Kan, Jinrong Cao, Shikang Song   +7 more
doaj   +1 more source

Remote-Sensing Evaluation and Temporal and Spatial Change Detection of Ecological Environment Quality in Coal-Mining Areas

Remote Sensing, 2022
The large-scale development and utilization of coal resources have brought great challenges to the ecological environment of coal-mining areas. Therefore, this paper has used scientific and effective methods to monitor and evaluate whether changes in ...
X. Nie, Zhen-Qi Hu, Meng-Ying Ruan, Qi Zhu, Huang Sun   +4 more
semanticscholar   +1 more source

An Accurate Digital Subsidence Model for Deformation Detection of Coal Mining Areas Using a UAV-Based LiDAR

Remote Sensing, 2022
Coal mine surface subsidence detection determines the damage degree of coal mining, which is of great importance for the mitigation of hazards and property loss. Therefore, it is very important to detect deformation during coal mining.
Jun-Liang Zheng, Wan-Qiang Yao, Xiaohu Lin, Bolin Ma, Lingxiao Bai   +4 more
semanticscholar   +1 more source

Model of Overlying Strata Structure in Large Mining Height Excavating Condition and Calculation of Support Working Resistance

Geofluids, 2022
Aiming at the wide range of rock strata movement and collapse, poor stability and high damage rate of the working face support and being prone to crushing of the support in large mining height face, analog simulation, theoretical analysis, and field ...
Fengfeng Wu, Xin Yue, Jingxuan Yang, Beiju Du, Jian Zhang, Bo Lv   +5 more
doaj   +1 more source

An Overview of Carbon Footprint of Coal Mining to Curtail Greenhouse Gas Emissions

Sustainability, 2022
Despite the trend of a transition to “clean” energy, the coal industry still plays a significant role in the global economy. The constant need for raw materials and energy for production leads to an environmental crisis—an increase in the content of ...
S. Ivanova, A. Vesnina, N. Fotina, A. Prosekov   +3 more
semanticscholar   +1 more source

Stability Analysis and Derived Control Measures for Rock Surrounding a Roadway in a Lower Coal Seam under Concentrated Stress of a Coal Pillar

Shock and Vibration, 2020
Numerical simulations have often been used in close-distance coal seam studies. However, numerical simulations can contain certain subjective and objective limitations, such as high randomness and excessively simplified models.
Zhuoyue Sun, Yongzheng Wu, Zhiguo Lu, Youliang Feng, Xiaowei Chu, Kang Yi   +5 more
doaj   +1 more source

Restructuring of the Coal Mining Industry and the Challenges of Energy Transition in Poland (1990–2020)

Energies, 2022
The European Union’s climate policy and the energy transition associated with it force individual countries, their economies and their industrial sectors to carry out thorough changes, often of a deep, high-cost and restructuring nature.
J. Kaczmarek, Konrad Kolegowicz, Wojciech Szymla   +2 more
semanticscholar   +1 more source

Application and Principle of Bolt-Mesh-Cable Control Technology in Extremely Soft Coal Seam Roadway

Geofluids, 2023
The extremely soft coal seam roadway has the problems of low surrounding rock strength and difficult support. Based on the engineering background of the mining roadway in the extremely soft coal seam of the Quandian coal mine, this paper adopts the ...
Fengfeng Wu, Jian Zhang, Ping Wang, Xiaofeng Zhao, Yanwei Xuan, Bo Lv, Jinkai Wei, Zhiqiang Gao, Shibao Liu, Haoyuan Gu   +9 more
doaj   +1 more source

Research on Temporal and Spatial Resolution and the Driving Forces of Ecological Environment Quality in Coal Mining Areas Considering Topographic Correction

Remote Sensing, 2021
Over the last few years, under the combined effects of climate change and human factors, the ecological environment of coal mining areas has undergone tremendous changes.
X. Nie, Zhen-Qi Hu, Qi Zhu, Meng-Ying Ruan   +3 more
semanticscholar   +1 more source

Study on the disaster caused by the linkage failure of the residual coal pillar and rock stratum during multiple coal seam mining: mechanism of progressive and dynamic failure

International Journal of Coal Science & Technology, 2023
Multi-seam mining often leads to the retention of a significant number of coal pillars for purposes such as protection, safety, or water isolation. However, stress concentration beneath these residual coal pillars can significantly impact their strength ...
Yun-Liang Tan, Qing Ma, Xiao-Li Liu, Xue-Sheng Liu, D. Elsworth, Rui-Peng Qian, J. Shang   +6 more
semanticscholar   +1 more source