Results 11 to 20 of about 6,281 (245)
Development of 3D top coal caving angle model for fully mechanized extra-thick coal seam mining
International Journal of Mining Science and Technology, 2022 During high-intensity, fully mechanized mining of extra-thick coal seam, the top coal would cave to a certain 3D form. Based on the data collected during drilling, a 3D model of top coal caving surface space was established to determine the relationship ...
Hongfei Duan +4 more
doaj +4 more sources
Mining-Induced Damage Characteristics of Floors during Fully Mechanized Caving Mining: A Case Study [PDF]
Advances in Materials Science and Engineering, 2018 To study the mining-induced damage characteristics of floors during fully mechanized mining, in situ measurements were performed using the hollow inclusion strain sensors in the No.
Yulong Jiang +3 more
semanticscholar +3 more sources
Meikuang Anquan, 2022 In order to determine the reasonable length of the mining face for high strength fully mechanized caving mining in low gas seams, taking 42108 fully mechanized caving face of Buertai Mine as the research object, the formula of checking the mining face ...
LYU Qingxu, XIAO Jianru, MAN Yang
doaj +2 more sources
Geofluids, 2022 It is urgent for westward coal mine development to control surrounding rock of thick unconsolidated stratum, thin basement rock, and super high seam under geological conditions.
Fei Liu, Zhanguo Ma, Yongsheng Han
semanticscholar +4 more sources
Minerals (Basel, Switzerland), 2022 The thick and hard gangue layer has long been one of the key obstacles affecting the coal recovery rate in the fully mechanized top-coal caving mining of ultra-thick coal seams, and it is also one key factor restricting the development of the technology ...
Hongye Luo +7 more
semanticscholar +3 more sources
Gong-kuang zidonghua, 2023 The current research achievements in the construction of intelligent fully mechanized caving face lack systematic implementation case for a specific fully mechanized caving face.
WU Xicang +3 more
doaj +2 more sources
Energy Science & EngineeringReal‐time monitoring of the coal caving process in fully mechanized mining is crucial for achieving intelligent and efficient top‐coal caving. While the coal gangue identification method, employing vision and deep learning, has advanced in the realm of ...
PengFei Shan +3 more
doaj +2 more sources
Meikuang Anquan, 2020 This paper systematically summarizes the development process of fully mechanized top coal caving technology and equipment in Yankuang Group in recent 30 years.
MENG Xiangjun, LI Mingzhong, YUE Ning, SUN Jishuang
doaj +2 more sources
International Journal of Mining Science and Technology, 2018 When mining the fully-mechanized longwall caving face along strike, the unstable equipment, the low top-coal recovery ratio and the difficulty in controlling surrounding rock may occur due to large dip angle.
Hu Shaoxuan +3 more
doaj +3 more sources
Study on Multisize Effect of Mining Influence of Advance Speed in Steeply Inclined Extrathick Coal Seam [PDF]
Lithosphere, 2022 Aiming at the multisize effect of mining in steeply inclined extrathick coal seam, taking the fully mechanized top-coal caving mining in B3+6 coal seam +425 level in the south of Wudong coal mine as the background, this paper studies the mining stress ...
Chong Jia +6 more
doaj +3 more sources