Three-dimensional characterisation of pore networks and fluid flow in segregated heaps in the presence of crushed ore and agglomerates

Wang, Leiming; Zhang, Xingquan; Yin, Shenghua; Zhang, Xuelan; Liu, Peizheng; Ilankoon, I.M.S.K.

doi:10.1016/j.hydromet.2023.106082

Cited by 11 publications

(4 citation statements)

References 59 publications

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“…where: σ t -Tensile strength of rock, (MPa); P-Maximum load at the time of failure, (kN); d-Diameter of the rock sample (cm); h-The height of the rock sample, (cm). 4 Shear test Objective: The shear strength, cohesion, and internal friction angle of the rock were measured. The specification: Length × width × height = 50 mm × 50 mm × 50 mm; the loading speed: 5 mm/50 s; the load parameter: 5 kN/grid.…”

Section: Laboratory Experiment-determination Of Reconstruction Parame...mentioning

confidence: 99%

“…The surface deformation caused by underground mining is a very complicated process, which has been predicted by some scholars. The research community has discussed various assessment and prediction techniques used to study surface deformation and environmental impact caused by underground mining [4]. Cui et al studied the prediction method of surface deformation and analyzed the relationship between the top Angle and coal seam dip Angle [5].…”

Section: Introductionmentioning

confidence: 99%

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Impacts of Surface Deformation Induced by Underground Mining of Metal Mines on Above-Ground Structures: A Case Study

Liu,

Li,

Wang

et al. 2023

Minerals

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The surface deformation caused by underground mining seriously affects the normal life and personal safety of local residents and also causes unfavorable factors for the safe and efficient exploitation of underground resources. While the study of surface deformation caused by underground mining of metal mines requires a large amount of measured data as support, the measured data is particularly scarce, which severely hinders the study of surface deformation caused by underground mining. In this paper, in order to study the impact of underground mining on surface structures in metal mines, we take the Fu Lao Zhuang Iron Mine in Anhui Province, China, as the research object and put forward a comprehensive measurement method based on the flat plate beam theory. Using empirical formulas combined with the methods of thickness-to-span ratio and the relaxation coefficient, etc., we carry out numerical simulation calculations for the displacement of the surface triggered by the mining of the ore body by using FLAC3D software. We calculate the maximum inclination deformation, curvature, and horizontal deformation values of the ground surface by referring to the displacement and deformation with reference to the displacement and deformation formula; the maximum tilt deformation, curvature, and horizontal deformation values of the ground surface are calculated, and finally, the permissible values of the design specifications are combined to make a judgment. The research results of this paper put forward the prerequisite for improving the surface deformation induced by underground mining.

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Section: Laboratory Experiment-determination Of Reconstruction Parame...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impacts of Surface Deformation Induced by Underground Mining of Metal Mines on Above-Ground Structures: A Case Study

Liu,

Li,

Wang

et al. 2023

Minerals

Self Cite

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“…The slopes stability in the mining operation of open-pit mines has always been a concern for mining engineers [1][2][3][4]. The rock mass of open-pit mining slopes is mostly a multi fracture body with a certain structure and longitudinal and transverse cutting of structural planes, and landslides often occur during the mining process [4,5]. The study of open-pit mine slopes can not only provide suggestions for safety production, but also provide theoretical basis for disaster prevention and reduction in the affected areas of slopes [6].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Landslide Disaster Modeling and Analysis using CDEM in the Southern Slope of Fushun West Open Pit Mine

Xie,

Wang,

Yang

et al. 2024

Preprint

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Landslides in open-pit mines have extremely high potential risks in the mining process due to their characteristics such as high speed, short distance, and the chain effect of other disasters. Taking the southern slope landslide of Fushun West Open Pit Mine (FWOPM) as an example, based on the dynamic process of the southern slope landslide, the deformation and failure mechanism and disaster chain disaster mode of the southern slope landslide are analyzed. The continuum discontinuum element method (CDEM) is constructed to reveal the evolution characteristics of the landslide, and a sudden change series method is proposed for landslide disaster analysis. The research results indicate that the entire process of the southern slope landslide can be summarized as follows: bedding slip stage, slight bending stage, strong bending stage, uplift stage and cut through stage. The geological hazard level of the southern slope landslide in FWOPM has a membership degree of 0.97, which belongs to a super large landslide and is basically consistent with the actual situation. This method is effective in the analysis of landslide disasters in southern slope landslide, and has good significance for slope landslide disasters prediction in FWOPM.

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Permeability characteristics of sandstone-type uranium deposits under different temperature and confining pressure

Yin,

Yang,

Chen

et al. 2023

J. Cent. South Univ.

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Three-dimensional characterisation of pore networks and fluid flow in segregated heaps in the presence of crushed ore and agglomerates

Cited by 11 publications

References 59 publications

Impacts of Surface Deformation Induced by Underground Mining of Metal Mines on Above-Ground Structures: A Case Study

Impacts of Surface Deformation Induced by Underground Mining of Metal Mines on Above-Ground Structures: A Case Study

Landslide Disaster Modeling and Analysis using CDEM in the Southern Slope of Fushun West Open Pit Mine

Permeability characteristics of sandstone-type uranium deposits under different temperature and confining pressure

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