Results 1 to 10 of about 16,326,882 (286)

Effect of Coalbed Methane Well Fracturing on Slope Stability of Open-Pit Coal Mine: A Case Study of Shengli East No. 2 Open-Pit Coal Mine [PDF]

Advances in Civil Engineering, 2020
The impact of hydraulic fracture from CBM well fracturing on slope stability of the Shengli East No. 2 open-pit coal mine is analyzed by numerical simulation and limit equilibrium methods.
Qingzhong Zhu, Bo Wang, Xin Zhao, Chunchun Liu, Qing Yu, Liwen Zhang, Tao Hou, Guangjie Sang   +7 more
doaj   +3 more sources

Research on production capacity planning method of open-pit coal mine. [PDF]

Sci Rep, 2023
Abstract Reasonable production capacity is related to the economic benefits of an open-pit coal mine. This study analyzes the relationship between the working face length, the annual advancing speed and the production capacity. It constructs a production capacity function relationship model. Take the Baorixile open-pit coal mine as an
Liu G, Guo W, Chai S, Li J.
europepmc   +4 more sources

Impact of Coal Mining on the Moisture Movement in a Vadose Zone in Open-Pit Mine Areas [PDF]

Sustainability, 2021
Long-term dewatering of groundwater is a necessary operation for mining safety in open-pit coal mines, while extensive dewatering might cause ecological problems due to dramatical changes of moisture movement in the soil, especially in ecological-fragile areas.
Haiyang Yi, Huiqin Lian
exaly   +2 more sources

Pumped storage hydropower in an abandoned open-pit coal mine: Slope stability analysis under different water levels

Frontiers in Earth Science, 2022
Many coal mines are being abandoned for economic and environmental reasons in China. The repurposing of abandoned open-pit coal mines into pumped storage hydropower (PSH) can help with the storage of renewable energy, improve mine environments, and ...
Feiyue Liu, Feiyue Liu, Feiyue Liu, Ke Yang, Tianhong Yang, Yuan Gao, Jinduo Li, Qinjie Liu, Qiang Fu   +8 more
doaj   +3 more sources

Optimization study on transverse mining zoning during the capacity expansion stage of nearly horizontal open-pit coal mines [PDF]

Scientific Reports
To address key challenges during the capacity expansion of the Baoqing Chaoyang Open-Pit Coal Mine from 7 to 11 Mt/a—such as insufficient working-line length, excessive advancing intensity, poor coordination between mining zones, elevated internal dump ...
Yu Wen, Ziling Song, Qianjun Su, Zhongwei Liu, Changshuai Wu, Long Zhang   +5 more
doaj   +2 more sources

Dust dispersion and prevention in deep concave open-pit coal mines [PDF]

Scientific Reports
To address dust diffusion in deep concave open-pit coal mines, this study examined Fushun East open-pit coal mine in Liaoning Province, a deep concave open-pit coal mine.
Yifang Long, Ziling Song, Leng Wu, Yu Wen   +3 more
doaj   +2 more sources

Blasting ore size detection based on efficient dehazing network and multi-dimensional feature fusion [PDF]

Scientific Reports
Ore particle size distribution is an important metric for evaluating blasting outcomes and affects the energy consumption of ore crushing equipment. Faced with dense accumulation of ore, nonuniform size distributions, dust occlusion, and target loss due ...
Pingfeng Li, Shoudong Xie, Wanzhong Zhang, Deming Chen, Sheng Peng, Weibin Fang, Dehao Zeng   +6 more
doaj   +2 more sources

Study on Crust-Shaped Dust Suppressant in Non-Disturbance Area of Open-Pit Coal Mine-A Case Study. [PDF]

Int J Environ Res Public Health, 2023
Shen Z, Ao Z, Wang Z, Yang Y.
europepmc   +2 more sources

Investigation on flow field characteristics in an open-pit coal mine [PDF]

Environmental Science and Pollution Research, 2021
Abstract In this paper, the atmospheric flow field characteristics in a deep open-pit mine are investigated numerically and theoretically. A theoretical model on the recirculation length based on the energy equation is used, a total variation diminishing (TVD) difference scheme with second order accuracy is used to solve the NS equations with a
Wanjun, Tang, Fengming, Li, Gaoxiang, Xiang, Mengwei, Liu   +3 more
openaire   +2 more sources

Study on Optimization of Coal Truck Flow in Open‐Pit Mine [PDF]

Advances in Civil Engineering, 2020
A semicontinuous process system consisting of a single‐bucket excavator, truck, crushing station, and belt conveyor is the main coal mining process system of a large‐scale hard coal open‐pit mine. Through analyzing the coal mining production process, the key issues of coal mining truck flow optimization are obtained.
Haiming Bao, Ruixin Zhang
openaire   +4 more sources