Results 11 to 20 of about 16,550,397 (137)

The histogram method of locating the capacity for internal dump at open pit coal mines in the Kemerovo region [PDF]

Vestnik MGTU, 2016
Using the special method of mining-geometric analysis of a pit field the criteria graphical histogram dependences determining the choice of location for the container inner blades to the regime of current pit field have been built and evaluated.
Selyukov A. V.
doaj   +2 more sources

Characterization and Concentration Prediction of Dust Pollution in Open-Pit Coal Mines

Atmosphere
Dust pollution is a major problem formed caused by opencast coal mining, and its prevention is a key prerequisite for the realization of green and climate-friendly mining in open-pit coal mines.
Guilin Wang, Wei Zhou, Zhiming Wang, Xiang Lu, Yirong Zhang   +4 more
doaj   +2 more sources

Key technical progress of water cutoff curtain technology in open-pit coal mines in China

, 2022
The method of pumping and discharging groundwater is widely used in open-pit coal mines for groundwater control in China to meet the requirements of safe coal mining, which causes great damage to water resources and seriously affects the ecological ...
Xuanming, HUANG, Yan, ZHANG, Mingxing, WANG, Guozhi, LI, Qingshan, TENG   +4 more
core   +1 more source

Summary of water disaster characteristics and water prevention and control technology in open-pit coal mines in China

, 2020
Opencast mining is one of the two ways of coal mining in China. Similar to the underground coal mine, the open-pit coal mine also faces the problem of water prevention and control in the process of mining.
Xuanming, HUANG, Yan, ZHANG, Zenglin, TIAN, Wensong, LI   +3 more
core   +1 more source

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   +1 more source

Study on mineralization behavior of CO2 by stimulated modified fly ash and inhibition of coal spontaneous combustion characteristics

Meitan xuebao
The use of fly ash mineralized CO2 material for preventing coal spontaneous combustion and storing CO2 is a new path of resource utilization that balances environmental benefits and engineering application value.
Yuntao LIANG, Weiwei SU, Zhenglong HE, Wei WANG, Baolong GUO, Yongming ZHANG, Yong SUN, Shuanglin SONG   +7 more
doaj   +1 more source

Monitoring of ecosystem changes in open-pit coal mines based on segmentation of multi-dimensional hypervolume

Meitan kexue jishu
Open-pit coal mining and ecological restoration jointly drive significant changes in the mine ecosystem. In the new era, monitoring and evaluation of mine land reclamation and ecological restoration consider ecosystem degradation and recovery as ...
Yongjun YANG, Xiuwen XIA, Jing DONG, Xinxin CHEN, Yufan XU, Shaogang LEI   +5 more
doaj   +1 more source

Way of Carbon Emission Reduction in Coal Mines Based on Carbon Balance Method and B-Wilson Method

Chemical Engineering Transactions, 2018
This study is to analyze carbon balance method and B-Wilson method in carbon emission reduction in coal mines. The carbon balance method and B-Wilson method are studied in four open-pit coal mines in Yimin River, Anjialing, Heidaigou and Buzhaoba.
Shuhui He
doaj   +1 more source

Review on seismic response of tunnel engineering: from dynamic characteristics of rock mass to structural earthquake-resistant analysis

Meitan xuebao
Although tunnel structures are confined by the surrounding strata, and relative movement between the structure and strata is not obvious under seismic loads, resulting in significantly superior seismic performance compared to surface structures, they are
Yujing JIANG, Xingda WANG, Xuepeng ZHANG
doaj   +1 more source

Application of Raman-infrared spectroscopy in the evaluation of organic matter characteristics and thermal maturity of highly-to overmature source rocks

Unconventional Resources
With the increasing depletion of conventional oil and gas resources, deep to ultra-deep petroleum resources have become a critical direction for global energy strategies. The scientific evaluation of highly-to overmature source rocks developed in deep to
Zhuanghao Peng, Xiangchun Chang, Guanlong Zhang, Bingbing Shi, Ruichao Guo, Junjian Zhang, Chenyu Wang, Shangbin Wang, Yuxuan Li, Zhaolin Li   +9 more
doaj   +1 more source