Results 101 to 110 of about 11,011,498 (241)
A systems approach to understanding block caving geomechanics [PDF]
, 2015 Block caving is an underground mining method of great importance to the future extraction of suitable, large, low-grade deposits due to high production rate potential and low operating cost.
Tibbett, James
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Epilepsia Open, EarlyView.Abstract Objective Effective epilepsy management requires accurate epilepsy knowledge, active patient engagement, and stigma reduction to improve health outcomes. Educational interventions have been shown to enhance patients' quality of life (QOL) and knowledge. This study evaluated the effectiveness of EpiloBot, an artificial intelligence (AI)‐powered
Izumi Kuramochi +10 more
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Sub-level caving method diagram, "Figure 13"
An undated diagram labeled as "Figure 13" and it says "throat set and grizzly for sub level caving method.
Unknown
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Meitan xuebaoA large range of caving roof of gob-side entry retaining is easy to cause impact damage of the roadside backfill body. In order to ensure the stability of gob-side entry retaining, different from the traditional large-angle inclined roof cutting method ...
Guorui FENG +6 more
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The Cellular Automaton Method for Cave Generation
, 2012 Dear reader, this post has an interactive simulation! We encourage you to play with it as you read the article below. In our series of posts on cellular automata, we explored Conway's classic Game of Life and discovered some interesting patterns therein.
openaire +1 more source
Study on Roof‐Control Technology for Gob‐Side Entry Retaining Under Composite Roofs
Energy Science &Engineering, EarlyView.This study develops a roof‐control technology system for gob‐side entry retaining under composite roofs. By integrating field measurements, theoretical analysis, and numerical simulation, it reveals the spatiotemporal evolution of the plastic zone and proposes a targeted support method, providing theoretical and practical guidance for safe and ...
Dong Li +4 more
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Scientific ReportsCaving mining is widely used for deep ore extraction because of its high productivity and cost efficiency. However, accurately predicting the three-dimensional (3D) caving morphology and collapse height remains challenging for safe mine design. Classical
Jingwen Liu +3 more
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SIMULATION STUDY ON CAVING PROCESS OF CAVING COAL HYDRAULIC SUPPORTS BASED ON EDEM
, 2019 In order to study the caving process of caving coal hydraulic support and the breaking law between immediate roof and basic roof,Taking the ZF15000/28/52 export caving hydraulic support as the research object, establish a three-dimensional simulation ...
LIU XinYan +4 more
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Energy Science &Engineering, EarlyView.This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
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Energy Science &Engineering, EarlyView.As the sublevel height increases, the top‐coal recovery amount gradually increases, but both the top‐coal recovery rate and the thickened top‐coal recovery rate show a downward trend, and the decline in the top‐coal recovery rate is gradually increasing. The comparison indicates that the optimal sublevel height is 20 m.
Hongsheng Tu +4 more
wiley +1 more source