Results 71 to 80 of about 1,490 (177)

Research and exploration of longwall fully mechanized mining in steeply dipping coal seams

Meitan kexue jishu
To address the challenges of safe and efficient mining in steeply dipping coal seams in China and support the intelligent transformation of the coal industry, this article focuses on fully mechanized longwall mining technology for such seams.
Yongping WU, Panshi XIE, Dongfeng YUN, Hongwei WANG, Xicai GAO, Wenyu LYU, Shenghu LUO, Ding LANG, Bosheng HU, Hao ZHANG, Yingyi ZHANG   +10 more
doaj   +1 more source

Off-Site Geological Surveying of Longwall Face Based on the Fusion of Multi-Source Monitoring Data

Mathematics
A high-precision coal seam model is crucial to improving the adaptability of unmanned mining technology to geological conditions. However, the accuracy of a coal seam model constructed with boreholes and geophysical data is far from the required accuracy
Mengbo Zhu, Ruoyu Rong, Zhizhen Liu, Xuebin Qin, Haonan Zhang, Shuaihong Kang   +5 more
doaj   +1 more source

FLAC3D Simulation of Caving Mechanism and Strata Fracture Response in Underground Mining

Mining
This paper presents an innovative numerical approach to simulating the progressive caving of rock mass in the overburden and floor during longwall mining.
Mahdi Saadat, Mattin Khishvand, Andrew Seccombe   +2 more
doaj   +1 more source

Study on the new layout pattern about the gob‐side entry under dynamic pressure and its surrounding rock stability control

Energy Science & Engineering
Though the recovery rate of coal resources can be effectively improved by adopting the gob‐side entry longwall face, which is also easy to cause tension between mining and excavation.
Meng Wang, Wenyu Wang, Yalong Xu, Guoliang Xie, Jianyun Qin, Honglin Liu, Sijiang Wei, Qingyun Xu   +7 more
doaj   +1 more source

Numerical Study on the Mechanical Behavior of Surrounding Rock in Deep Coal Seams under Fluidization Mining. [PDF]

ACS Omega
Wei M, Xiao L, Kang J, Gao K.
europepmc   +1 more source

Evolution and dip effect of boundary spatial morphology of top-coal limit equilibrium zone in steeply dipping coal seam. [PDF]

Sci Rep
Wu X, Chi X, Lang D, Wu Y, Zhang Z, Chen S.   +5 more
europepmc   +1 more source

Evaluation of the correlation between passive velocity tomography and mining seismic activity. [PDF]

Sci Rep
Zhang Z, Cao W, Wang S, Hu Y, Dou L.
europepmc   +1 more source

Numerical modelling approach for estimation of a yield zone in the face of a deep longwall panel. [PDF]

Sci Rep, 2023
Islavath SR.
europepmc   +1 more source

Failure mechanism of surrounding rock and synergistic control of strong support-strong pressure relief for lower-seam roadways in close-distance coal seam groups. [PDF]

Sci Rep
Yu S, Suo Y, Cai C, Feng J, Huo X, Hu J, Ren J.   +6 more
europepmc   +1 more source

Investigation of surface subsidence behaviour in multi-slice longwall mining using numerical simulations in Barapukuria coal mine, Bangladesh. [PDF]

Sci Rep
Zhang C, Arif A, Wu J, Habibullah M, Mohammadamini K, Sajib MH, Manohar B.   +6 more
europepmc   +1 more source