Laboratory-Scale Insight into Fractal Dimension Indicators for Seismic Hazard Assessment Associated with Rock Failures by Wu Cai

“…Investigation of acoustic emission (AE) characteristics during laboratory tests of coal samples can provide useful guidance on the recognition of microseismicity (MS) precursors for seismic hazards in underground coal mining. In this study, a methodology, involving fractal dimension indices and a fuzzy comprehensive evaluation model, was developed and demonstrated using AE monitoring data in a uniaxial loading test of coal samples, which allows for a better and quantitative recognition of AE/MS precursors to seismic hazards associated with rock failures. …”
Get full text

The Cause of Drop of the Water Level of Underground Quaternary Aquifer of a Mine under Mining Influence by Xianghong Liu

“…Water outburst on the coal mining face will result in the shutdown of the working face, tense mine connection, a sharp increase in mine drainage fee, and serious impact on normal production. …”
Get full text

Parametric Study of the Borehole Drilling in Jointed Rock Mass by Yanan Gao, Yudong Zhang, Zetian Zhang, Minghui Li, Yingfeng Sun, Donghao Lan, Feng Gao

“…Therefore, the primary precaution for coal mining is gas control. At present, drilling and extraction are the main approaches for gas accident prevention. …”
Get full text

Le Paysage de la vallée de l’Ondaine. Complexité et paradoxe de la transformation et de la narration d’un territoire post minier by Georges-Henry Laffont, Luc Rojas

“…Once a center of mining and industrial activity throughout several centuries, the Ondaine Valley, between Saint-Etienne and Firminy, remains today marked by traces of the industrialization that shaped the territory, especially in regards to its coal mining history. Despite a period of mourning beginning in the late 1970s, local actors still have difficulties taking mining heritage into account within their territorial reconversion policies. …”
Get full text

SURVEYING RELATIONS WITHIN THE COMPANY AS AN ELEMENT OF THE COMPLANS CONTROL SYSTEM by Yuliya P. Berezina

“…The author analyzed the local regulations of coal mining enterprises. The paper studies the stages of mine surveying control procedures. …”
Get full text

Stability Analysis of a Slope considering Two Reinforcement Processes by Wei Chen, Dongbai Li, Ting Ma, Helin Fu, Yanpeng Du

“…The strength reduction method embedded in a distinct element code was used to analyse the stability of a slope in a coal mining area that had been reinforced twice, primarily with pile and retaining wall, followed by porous steel-tube bored grouting. …”
Get full text

Study on Evolution Characteristics and Instability Model of Overburden Stress Shell with the Longwall Mining along Strike by Wanrong Liu, Qingwen Shi

Get full text

Analysis of the Coal Fluidization Mining Process with the Continuous-Discontinuous Coupled Particle-Block Method by Jing Li, Chun Feng, Xinguang Zhu, Yiming Zhang

“…In situ fluidization mining is a promising method which shows considerable potential for reducing the ecological influence impacts of coal mining. During fluidization mining, coal gangue will be separated from the ores, filled back, and returned to the excavation region, which, depending on the filling rate, greatly reduces the stratum deformation of strata, depending on the filling rate. …”
Get full text

Surface Subsidence Control Mechanism and Effect Evaluation of Gangue-Backfilling Mining: A Case Study in China by Huaizhan Li, Guangli Guo

“…Comprehensive mechanization solid backfilling mining is a new technology developed in China for coal mining and surface subsidence control. Based on a gangue-backfilling project in the Yangzhuang Coal Mine, the characteristics of underlying strata and surface deformation were studied by similar-material simulation method. …”
Get full text

Evaluation of a 38 L Explosive Chamber for Testing Coal Dust Explosibility by Robert Eades, Kyle Perry

“…Coal dust explosions are the deadliest disasters facing the coal mining industry. Research has been conducted globally on this topic for decades. …”
Get full text

Research on Drilling and Sealing Technology for Cross Bedding of Superthick Coal Seam by Yao-bin Li, Cai-Hao Yue, Xin Guo

“…Gas disasters have been affecting coal mine safety production. With the gradual deepening of coal resources development, whether gas extraction meets the standard is particularly important. …”
Get full text

Dynamics Analysis and Experiment of Novel Compound Dry Separator by Li Hongxi, Zhou Enhui, Zhang Bo, Jiang Haishen, Shen Ling, Yin Zixin

“…The method of dry coal beneficiation is a key method of separation technology in the field of coal mining. In this paper, the structure of a novel compound dry separator (NCDS) was revealed. …”
Get full text

Study on The Influence of Direct Ground Liquid CO2 Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions by Naifu Cao, Yuntao Liang, Gang Wang

“…In order to reveal the impact of a high concentration of CO2 on the soil in the coal mining subsidence area, the surface above the goaf before CO2 injection is regarded as a subsidence area model. …”
Get full text

Study on the Mechanical Relationship among the Backfilling Mining Support, Roof Rock Beam, and Gangue Filling Body in Comprehensive Mechanized Filling Mining Process by Zhimin Huang, Lei Zhang, Zhanguo Ma

“…Properly increasing the pushing force of backfilling-coal mining hydraulic support on the filling body can also effectively control the roof subsidence. …”
Get full text

Experimental Study of Gangue Layer Weakening with Deep-Hole Presplitting Blasting by Jianchi Hao, Lifeng Ren, Hu Wen, Duo Zhang

“…Advances in coal mining technology and an increase in coal output are resulting in increasingly challenging conditions being encountered at coal seams. …”
Get full text

Study on the Variation Rule and Characteristics of Pore Water Pressure in the Failure Process of Saturated Rock by Yuezheng Zhang

“…Through the observation of pore water pressure during coal mining, it is found that the coseismic effect of pore water pressure is significant. …”
Get full text

Failure Mechanism of Anti-Inclined Karst Slope Induced by Underground Multiseam Mining by Nanyun Wang, Zuliang Zhong, Xinrong Liu, Guofu Gao

“…The DEM results are as follows: firstly, under the action of underground coal mining, the overlying strata of the mountain deform toward the goaf and the deformation of the stratum increase significantly with the caving of the roof stratum; and the deep karst fissures in the overlying stratum have an important influence on the deformation of the mountain; the upper strata form a subsidence zone along the fissures, expanding the range of tensile fissures. …”
Get full text

Research on Dynamic Stability Optimization of Rock Spreader considering Prevention of Geological Subsidence and Local Collapse in Reclamation Area by Baofu Kou, Pengliang Huo, Xin Shi

Get full text

Instability Model of a Coal Wall with Large Mining Height under Excavation Unloading Conditions by Lei Li, Feng zhang

“…Results show that the coal mining process is the unloading process of coal and rock masses, and the stress field of surrounding rocks at the coal wall turns into an unloading stress field that consists of original and unloading stresses. …”
Get full text

Les configurations de l'espace économique et la crise politique en Belgique by Christian Vandermotten

“…The economic crisis that affected Wallonia and many European early coal-mining and metallurgical areas after World War II generated in Flanders the feeling that Wallonia had become a burden for its own development, characterized in turn by strong manufacturing growth. …”
Get full text