Results 61 to 70 of about 10,633 (207)
Unconventional energy resources in a crowded subsurface: reducing uncertainty and developing a separation zone concept for resource estimation and deep 3D subsurface planning using legacy mining data [PDF]
, 2017 Over significant areas of the UK and western Europe, anthropogenic alteration of the subsurface by mining of coal has occurred beneath highly populated areas which are now considering a multiplicity of ‘low carbon’ unconventional energy resources ...
Monaghan, Alison A.
core +1 more source
Carbon Energy, EarlyView.Herein, we mainly summarize the characteristics of the main types of carbon dots (CDs), analyze the strategies for improving advanced batteries' performance via incorporating CDs, comprehensively summarize recent applications of CDs in the main components (electrode, electrolyte, and separator) of advanced batteries, and propose the technical ...
Chuang Jiang +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu +6 more
wiley +1 more source
Gong-kuang zidonghua, 2022 When the extra thick coal seam is mined in the goaf, the remaining coal pillar of upper coal seam and adjacent working face will have an important impact on the stability of mining roadway.
CAO Jinzhong +5 more
doaj +1 more source
Gas Distribution Law for the Fully Mechanized Top‐Coal Caving Face in a Gassy Extra‐Thick Coal Seam
Advances in Civil Engineering, 2018 Mine gas overflow is a serious threat to the safe and efficient longwall mining of gassy coal seams. Based on the field mining conditions and gas extraction of the fully mechanized top‐coal caving face of a gassy coal mine, the space volume fraction distribution and emission (extraction rate) of gas in the face were tested by an arrangement of ...
Wenlin Wang +3 more
openaire +2 more sources
Frontiers in Earth Science, 2023 The methods of numerical simulation and on-site measurement is used to analysis reasonable coal pillar width (CPW) and roadway support in isolated panel of extra-thick coal seam. Numerical modeling shows that a maximum vertical stress in isolated panel is 32.9 MPa, and stress concentration factor reaches 2.99, which is more affected by the mining of ...
Xiang He +10 more
openaire +2 more sources
Critical parameters for coarse coal underground slurry haulage systems [PDF]
, 1981 Factors are identified which must be considered in meeting the requirements of a transportation system for conveying, in a pipeline, the coal mined by a continuous mining machine to a storage location neat the mine entrance or to a coal preparation plant
Maynard, D. P.
core +2 more sources
Deep Underground Science and Engineering, EarlyView.This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley +1 more source
Experimental study on permeability evolution of slender coal pillar of entry driven along goaf
Meitan kexue jishu, 2023 Under the condition of roadway driving along goaf, slender coal pillar is affected by multiple mining-induced disturbances, and the permeability of coal and rock mass affected by mining will change due to the development and compaction of mining ...
Bingjie HUO +5 more
doaj +1 more source
Coal Bed Methane System Modeling - Reservoir, Wells and Surface Facilities [PDF]
, 2011 Imperial Users ...
Ori-Jesu, Efeoghene, Ori-Jesu, Efeoghene
core