Results 61 to 70 of about 79,646 (225)
Critical expansion points: Mechanical signs of surrounding rock instability
Deep Underground Science and Engineering, EarlyView.This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen +4 more
wiley +1 more source
Meitan kexue jishu, 2023 Coal mine underground reservoir is one of the key technologies to solve the protection and utilization of water resources in western mining areas. The basis for maintaining the safe operation of the reservoir is engineering safety, and the dam body is ...
Mingbo CHI +7 more
doaj +1 more source
Self-regulating roof-bolting with the rock pressure energy use [PDF]
, 2018 The perspective of discovery of zonal disintegration phenomenon of rocks around underground mine workings is analyzed. The methodological stages for research of this phenomenon are shown.
Astafiev, Denys +10 more
core +1 more source
Applied SciencesCoal mining has generated a large amount of underground space, which has traditionally been reused mostly as mine wastewater storage. Given the excellent thermal insulation properties of these mine reservoirs, their potential for seasonal energy storage ...
Wenying Tang +7 more
doaj +1 more source
Scientific Data, 2023 The underground coal mine production of the fully mechanized mining face exists many problems, such as poor operating environment, high accident rate and so on.
Wenjuan Yang +12 more
doaj +1 more source
Research into the effect of gallery size on blast pull in underground coal mines [PDF]
, 2018 Purpose. To investigate the effect of gallery size on blast pull in underground colliery by drilling and blasting techniques. Methods. The study conducted in three different underground collieries namely A, B and C located in eastern part of India has ...
Choudhary, B
core +1 more source
Mine shafts in Nord-Pas-de-Calais coalfield (France) Risk assessment and treatment technique [PDF]
, 2001 In France, coal concessions abandonment is fixed by legal procedures that lead the owner to achieve studies for the identification and the assessment of residual risks associated with underground mine workings.
Degas, Marie +2 more
core +1 more source
Improving the process of coal extraction based on the parameter optimization of mining equipment [PDF]
, 2018 The aim of this paper is to develop and validate methods of choosing the means of the mining face mechanization. This paper analyses existing methods of optimizing processes in mining.
Hrinov, Volodymyr, Khorolskyi, Andrii
core +1 more source
Prediction of subsidence due to underground mining by artificial neural networks [PDF]
, 2003 Alternatively to empirical prediction methods, methods based on influential functions and on mechanical model, artificial neural networks (ANNs) can be used for the surface subsidence prediction.
Ambrožič, Tomaž, Turk, Goran
core +1 more source
Design of panoramic image acquisition system in coal mine underground
Gong-kuang zidonghua, 2018 For problems of large size of existing panoramic image acquisition devices which did not apply to coal mine underground and collected image with uneven illumination caused by pointolite in the devices, a panoramic image acquisition system in coal mine ...
YIN Dafa
doaj +1 more source