Results 91 to 100 of about 153,248 (205)

Assessment of mining activities with respect to the environmental protection [PDF]

, 2017
This paper deals with the impact of mining on the environment. Coal mining is still among the most widespread and most intense mining activity, which disturbs the landscape around us bringing regional environmental, economic and aesthetic problems ...
Dirner, Vojtech, Kučerová, Radmila, Pavelek, Zdeněk, Škuta, Radim   +3 more
core  

Англійська мова для навчання і работи. Навчальний посібник з англійської мови за професійним спрямуванням для студентів і фахівців галузі знань 0503 Розробка корисних копалин Т 1 [PDF]

, 2010
A coursebook includes all the activities of students’ work at ESP course aimed at development of language behaviour necessary for effective communication of students in their study and specialism areas.
Зуєнок, І.І., Кострицька, С.І., Поперечна, Н.В., Швець, О.Д.   +3 more
core  

Thermo-Mechanical Behavior of Polymer-Sealed Dual-Cavern Hydrogen Storage in Heterogeneous Rock Masses

Energies
Underground hydrogen storage (UHS) in geological formations offers a promising solution for large-scale energy buffering, but its long-term safety and mechanical stability remain concerns, particularly in fractured rock environments.
Chengguo Hu, Xiaozhao Li, Bangguo Jia, Lixin He, Kai Zhang   +4 more
doaj   +1 more source

Effectiveness of Geo-Energy Usage during Underground Mining of Deposits [PDF]

, 2017
Topicality of rock pressure energy usage in technologies of underground mining of deposits is revealed. Methodology of geo-energy processes research in the interior of the Earth is described.
Astafiev, Denys, Khomenko, Oleh, Kononenko, Maxim   +2 more
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Advancing deep underground research through integration of engineering and science

Deep Underground Science and Engineering, 2022
Heping Xie, Chunfai Leung, Jianguo Wang, Xiaozhao Li   +3 more
openaire   +2 more sources

Numerical Investigation of Gob-Side Entry Retaining through Precut Overhanging Hard Roof to Control Rockburst

Advances in Civil Engineering, 2018
Gob-side entry retaining through precut overhanging hard roof (GERPOHR) method is one of the commonly used methods for nonpillar mining. However, feasibility studies of controlling rockburst by this method are few.
Xiaoming Sun, Li Gan, Zhao Chengwei, Tang Jianquan, He Manchao, Song Peng, Miao Chengyu   +6 more
doaj   +1 more source

Modeling test of deep buried tunnel in soft and broken rock based on non-contact monitoring methods

矿业科学学报, 2017
A physical modelling test was carried out based on soft and broken surrounding rock tunnel.The formation and development process of temperature and displacement field were observed by two means of non-contact monitoring methods:The infrared thermal ...
Sun Xiaoming, Han Qiang, Miao Chengyu, Yuan Shuai, Miao Peiyang, Lu Hao   +5 more
doaj  

Full-Scale Pore Structure Characterization and Its Impact on Methane Adsorption Capacity and Seepage Capability: Differences between Shallow and Deep Coal from the Tiefa Basin in Northeastern China

Fractal and Fractional
Deep low-rank coalbed methane (CBM) resources are numerous and widely distributed in China, although their exploration remains in its infancy. In this work, gas adsorption (N2/CO2), mercury intrusion porosimetry, and 3D CT reconstruction were performed ...
Na Zhang, Shuaidong Wang, Jiaqi Wu, Zheng Li, Xinyue Wang   +4 more
doaj   +1 more source

Influence of vibrations on structures [PDF]

, 2018
One type of occasional structural load is a seismic load. Earthquakes and blasts are typical sources of vibrations, but vibration generated during urban tunnel construction can represent a significant problem.
Kaláb, Zdeněk
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Numerical Simulation Study on Deformation Mechanism of Tunnel–Landslide Orthogonal Systems and Early Warnings of Imminent Sliding

Applied Sciences
This paper takes a tunnel through a landslide in Northwest China as an example, constructs a mechanical model of a tunnel–landslide orthogonal system, and explores the deformation mechanism of a tunnel–landslide system and the technology of early ...
Meng Mi, Zhigang Tao, Shihui Pang, Keyuan Liu, Ke Qin   +4 more
doaj   +1 more source