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Modeling gas energy process of underground coal combustion [PDF]
E3S Web of Conferences, 2023 Protective coal pillars in underground mining are technological losses in the technology of extracting coal at the Angren deposit. During the mine operation, a significant part of the coal remains in the mine space.
Yakubov S. I. +3 more
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Advances in Civil Engineering, 2022 For the purpose of analyzing the effect of the alkaline solutions on the mechanical property of sandstone impact compression, the sandstone specimens of coal mine roadway were corroded in NaOH solution with pH 7 (neutral pure water solution) and pH = 8 ...
Qi Ping +6 more
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Advances in Civil Engineering, 2022 The rock mass is the main carrier of underground engineering. Many rock engineering involves rock mass excavation, and the temperature of deep rock mass increases with the depth rising.
Qi Ping +6 more
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Review on the purification mechanism of mine water by coal mine underground reservoir
矿业科学学报, 2023 The purification effect of coal mine groundwater reservoir on mine water mainly lies in the water-rock coupling between the rock mass and mine water.This paper systematically reviews the research methods of water-rock coupling in coal mine underground ...
Jiang Binbin +5 more
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Experimental Study on Dynamic Performance of Rock-Concrete Composite with Different Thickness Ratios
Shock and Vibration, 2022 In order to study the influence of different thickness ratios on the mechanical properties of rock-concrete composite, a 50 mm diameter split Hopkinson pressure bar device (SHPB) was used to conduct impact loading tests on ϕ 50 mm × 50 mm cylindrical ...
Qi Ping +6 more
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Review of intelligent monitoring and extinguishing technology of electrical fire in coal mine
Meikuang Anquan, 2022 According to the characteristics of underground electrical fire in coal mine, this paper analyzes the causes of underground electrical fire in coal mine, summarizes the research status of underground electrical fire intelligent monitoring and fire ...
HE Yongjun +5 more
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Shock and Vibration, 2022 To study the dynamic mechanical properties and energy consumption of fissured sandstone with different dip angles under impact load, impact compression tests were conducted on seven groups of and intact and fractured sandstone specimens with different ...
Qi Ping +7 more
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Горные науки и технологии, 2021 Khanh Hoa coal mine (Thai Nguyen province) is one of the largest coal mines in the north of Vietnam. For many years, this area suffered from underground fires at coal mine waste dumps, seriously affecting production activities and the environment.
Le Hung Trinh , Viet Nghia Nguyen
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Geofluids, 2022 Confining pressure is closely related to the deformation and failure characteristics of gas-containing coal and is one of the key factors for gas outburst-rockburst coupled dynamic disaster. Firstly, this paper briefly summarized the triaxial compression
Zhizhen Zhang +5 more
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Research on the network connected automatic driving technology in underground coal mine
Gong-kuang zidonghua, 2022 This paper analyses the development status and technical characteristics of intelligent and networked technologies for conventional ground automatic driving.
LI Chenxin, ZHANG Liya
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