Results 71 to 80 of about 1,342 (177)

An open dataset for intelligent recognition and classification of abnormal condition in longwall mining. [PDF]

Sci Data, 2023
Yang W, Zhang X, Ma B, Wang Y, Wu Y, Yan J, Liu Y, Zhang C, Wan J, Wang Y, Huang M, Li Y, Zhao D.   +12 more
europepmc   +1 more source

Analysis and Assessment of Parameters Shaping Methane Hazard in Longwall Areas

Journal of Sustainable Mining, 2013
Increasing coal production concentration and mining in coal seams of high methane content contribute to its growing emission to longwall areas. In this paper, analysis of survey data concerning the assessment of parameters that influence the level of ...
Eugeniusz Krause, Adam Smoliński
doaj   +1 more source

Heavy rockbursts due to longwall mining near protective pillars: A case study

International Journal of Mining Science and Technology, 2018
Rockburst represents a very dangerous phenomenon in deep underground mining in unfavourable conditions such as great depth, high horizontal stress, proximity of important tectonic structures, and unmined pillars. The case study describes a recorded heavy
Petr Konicek, Jan Schreiber
doaj   +1 more source

Characteristics of Airflow Migration in Goafs under the Roof-Cutting and Pressure-Releasing Mode and the Traditional Longwall Mining Mode. [PDF]

ACS Omega, 2021
Chen X, Jia Q, Li X, Feng S, Wang L, Li L.   +5 more
europepmc   +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

Powered Roof Support – Rock Strata Interactions on the Example of an Automated Coal Plough System

Studia Geotechnica et Mechanica, 2018
The study summarises the operating characteristics of the powered roof support (shield) used in an automated plough system. Investigated longwall support units were controlled automatically or by section engineers and positioned in the ‘saw tooth ...
Herezy Łukasz, Janik Dariusz, Skrzypkowski Krzysztof   +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

Mechanical analysis of the structure of longwall mining hydraulic support. [PDF]

Sci Prog, 2020
Li T, Wang J, Zhang K, Zhang C.
europepmc   +1 more source

SELECTION OF THICK COAL SEAM MINING METHOD USING ANALYTIC HIERARCHY PROCESS

ITEGAM-JETIA, 2019
In thick coal seams, it is very important to select the correct mining method. Choosing a wrong method may be very costly to the company. All the factors affecting the mining method and the relations in between should be considered.
Mustafa Emre Yetkin, Muharrem Kemal Özfırat   +1 more
doaj  

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