Results 51 to 60 of about 4,148 (210)
Intelligent Detection of Small Faults Using a Support Vector Machine
Energies, 2021 The small fault with a vertical displacement (or drop) of 2–5 m has now become an important factor affecting the production efficiency and safety of coal mines.
Aiping Zeng +5 more
doaj +1 more source
A new empirical chart for rockburst analysis in tunnelling: Tunnel rockburst classification (TRC)
International Journal of Mining Science and Technology, 2021 Rockburst is defined as a phenomenon with immediate dynamic instability under excavation unloading conditions of deep or high geostress areas. Inadequate knowledge and lack of characterizing information prevent engineers and experts from achieving appropriate prediction results related to the rockburst behaviour. In this study, a data set including 220
openaire +2 more sources
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
Mechanism and Inducing Factors of Rockburst Events of Roadways Under Ultrathick Strata
Frontiers in Earth Science, 2022 The overlying strata of the Yima coalfield are ultrathick conglomerate. Aiming at the problem of frequent occurrence of rockburst events in the central Yima coalfield during 2006–2015, the characteristics of rockburst events, microseismic (MS) monitoring,
Zhen Hao, Guangzhong Sun, Guohua Zhang
doaj +1 more source
Prediction of rockburst based on experimental systems and artificial intelligence techniques [PDF]
, 2012 Rockburst is characterized by a violent explosion of a certain block causing a sudden rupture in the rock and is quite common in deep tunnels. It is critical to understand the phenomenon of rockburst, focusing on the patterns of occurrence so these ...
He Manchao +5 more
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Management of post-mining large-scale ground failures : blast swarms field experiment for calibration of permanent microseismic early-warning systems [PDF]
, 2010 International audienceIn France, decades of coal and iron-ore mining have left extensive underground cavities beneath or in the vicinity of urban areas. This poses an environmental challenge for society.
Bennani, Mustapha +5 more
core +4 more sources
Energy Science &Engineering, EarlyView.Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang +7 more
wiley +1 more source
Quantitative Calculation of Critical Depth in Typical Rockburst Mine
Advances in Civil Engineering, 2020 In order to calculate the critical depth of a typical rockburst coal mine quantitatively, which is helpful in rockburst prevention and control, in this paper, the concept of typical rockburst coal mine and atypical rockburst coal mine is put forward ...
Hai Rong +3 more
doaj +1 more source
The prevention of rockbursts in Gardanne colliery [PDF]
, 1995 International audienceThe Gardanne colliery lies between Aix-en-Provence and Marseille and is part of the south-east complex of H.B.C.M. (Subsidiary of the Charbonnages de France group).
Derrien, Yves, Josien, Jean-Pierre
core +1 more source
Energy Science &Engineering, EarlyView.Interpretable tree‐based models integrate microseismic, geological, and mining indicators to predict short‐term rockburst risk. SHAP analysis reveals the dominant role of energy‐related features and clarifies nonlinear factor interactions, enabling transparent and reliable early‐warning in deep coal mines.
Shuai Chen +4 more
wiley +1 more source