Detection of soil physical properties of reclaimed land in open-pit mining area: feasibility of application of ground penetrating radar

2021 ◽  
Vol 193 (7) ◽  
Author(s):  
Gubai Luo ◽  
Yingui Cao ◽  
Hanxiao Xu ◽  
Geng Yang ◽  
Shufei Wang ◽  
...  
Keyword(s):  
Physical Properties ◽  
Ground Penetrating Radar ◽  
Mining Area ◽  
Soil Physical Properties ◽  
Open Pit ◽  
Open Pit Mining ◽  
Reclaimed Land ◽  
Ground Penetrating

Asbestos rehabilitation project as a model of landscape sustainability

2022 ◽  
Vol 13 (1) ◽  
pp. 0-0
Keyword(s):  
Mining Area ◽  
Open Pit ◽  
Open Pit Mining ◽  
Soil Protection ◽  
Rehabilitation Management ◽  
Landscape Sustainability ◽  
National Legislation ◽  
Health Measures ◽  
Safety And Health ◽  
The World

Greece was one of the biggest producers of asbestos in the world as well as a consumer. It took advantage of the asbestos rich Zidani mine, in the region of Western Macedonia in Greece. However, due to serious health problems caused by inhaling asbestos, it was banned in 1979 and the mine closed in March 2000. Rehabilitation management of the abandoned asbestos mining area, the depositions in the open - pit mining area and the tailings remnants was necessary in order to avoid health and environmental problems in the wider area The detailed soil protection and rehabilitation project of the degraded mining area was implemented taking all necessary and appropriate safety and health measures according to the requirements of the relevant E.U and National legislation, so that accidents would be prevented. Results show that the rehabilitation, soil protection and enhancement of the area help the ecosystems to be sustainable, ecologically and socially acceptable

scholarly journals Dust Dispersion and Its Effect on Vegetation Spectra at Canopy and Pixel Scales in an Open-Pit Mining Area

2020 ◽  
Vol 12 (22) ◽  
pp. 3759
Author(s):  
Baodong Ma ◽  
Xuexin Li ◽  
Ziwei Jiang ◽  
Ruiliang Pu ◽  
Aiman Liang ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Mining Area ◽  
Open Pit ◽  
Open Pit Mining ◽  
Vegetation Canopy ◽  
Dust Pollution ◽  
Mining Areas ◽  
Dust Effect ◽  
Dust Dispersion ◽  
Pixel Scale

Dust pollution is severe in some mining areas in China due to rapid industrial development. Dust deposited on the vegetation canopy may change its spectra. However, a relationship between canopy spectra and dust amount has not been quantitatively studied, and a pixel-scale condition for remote sensing application has not been considered yet. In this study, the dust dispersion characteristics in an iron mining area were investigated using the American Meteorological Society (AMS) and the U.S. Environmental Protection Agency (EPA) regulatory model (AERMOD). Further, based on the three-dimensional discrete anisotropic radiative transfer (DART) model, the spectral characteristics of vegetation canopy under the dusty condition were simulated, and the influence of dustfall on vegetation canopy spectra was studied. Finally, the dust effect on vegetation spectra at the canopy scale was extended to a pixel scale, and the response of dust effect on vegetation spectra at the pixel scale was determined under different fractional vegetation covers (FVCs). The experimental results show that the dust pollution along a haul road was more severe and extensive than that in a stope. Taking dust dispersion along the road as an example, the variation of vegetation canopy spectra increased with the height of dust deposited on the vegetation canopy. At the pixel scale, a lower vegetation FVC would weaken the influence of dust on the spectra. The results derived from simulation spectral data were tested using satellite remote sensing images. The tested result indicates that the influence of dust retention on the pixel spectra with different FVCs was consistent with that created with the simulated data. The finding could be beneficial for those making decisions on monitoring vegetation under dusty conditions and reducing dust pollution in mining areas using remote sensing technology.

Semi-Arid Region Analysis of Soil Physicochemical Property in Mine Spoils and Phytoremediation Research

2012 ◽  
Vol 454 ◽  
pp. 273-278
Author(s):  
Xiao Wei Zhang ◽  
En De Wang
Keyword(s):  
Physical Properties ◽  
Arid Region ◽  
Soil Nutrient ◽  
Test Site ◽  
Mining Area ◽  
Soil Physical Properties ◽  
Vegetation Types ◽  
Mine Spoils ◽  
Semi Arid Region ◽  
Semi Arid

Semi-arid region of Soil repair in Mine spoils is a problem of worthy of attention and research, this paper assesses Fuxin mining area and YuanBaoShan mining area for test site, five kinds of site types are divided based on the investigation of mine spoils damage situation, and testing each sitetype of soil physical properties and the change of soil nutrient systematically, and doing the five kinds of sitetypes’phytoremediation research based on it. The evaluation results indicate: Mine spoils soil along with the increasing length of stopping discharging the gangue, the soil physical and chemical characteristics improve gradually. Through the research of vegetation and soil interaction relations we get the best Reclamation vegetation types of the Mine spoils. Mine spoils is an important form of land degradation, is one of the major environmental problems of today's world. This paper assesses Fuxin mining area and YuanBaoShan mining area for test site, testing each site type of soil physical properties and the change of soil nutrient systematically, and on the basis of experiments, putting forward the best Reclamation vegetation types for mine spoils.

scholarly journals Evaluation of the effectiveness of backfilling and sealing at an open-pit mine using ground penetrating radar and geoelectrical surveys, Kimheden, northern Sweden

2014 ◽  
Vol 73 (8) ◽  
pp. 4495-4509 ◽  
Author(s):  
Lucile Villain ◽  
Nils Sundström ◽  
Nils Perttu ◽  
Lena Alakangas ◽  
Björn Öhlander
Keyword(s):  
Ground Penetrating Radar ◽  
Open Pit Mine ◽  
Open Pit ◽  
Northern Sweden ◽  
Ground Penetrating

scholarly journals Determination of the Ultimate Underground Mining Depth considering the Effect of Granular Rock and the Range of Surface Caving

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Rongxing He ◽  
Jing Zhang ◽  
Yang Liu ◽  
Delin Song ◽  
Fengyu Ren
Keyword(s):  
Numerical Simulation ◽  
Rock Mass ◽  
Mechanical Model ◽  
Surface Deformation ◽  
Underground Mining ◽  
Mining Area ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Depth

Continuous mining of metal deposits leads the overlying strata to move, deform, and collapse, which is particularly obvious when open-pit mining and underground mining are adjacent. Once the mining depth of the adjacent open-pit lags severely behind the underground, the ultimate underground mining depth needs to be studied before the surface deformation extends to the open-pit mining area. The numerical simulation and the mechanical model are applied to research the ultimate underground mining depth of the southeast mining area in the Gongchangling Iron mine. In the numerical simulation, the effect of granular rock is considered and the granular rock in the collapse pit is simplified as the degraded rock mass. The ultimate underground mining depth can be obtained by the values of the indicators of surface movement and deformation. In the mechanical model, the modified mechanical model for the progressive hanging wall caving is established based on Hoke’s conclusion, which considers the lateral pressure of the granular rock. Using the limiting equilibrium analysis, the relationship of the ultimate underground mining depth and the range of surface caving can be derived. The results show that the ultimate underground mining depth obtained by the numerical simulation is greater than the theoretical calculation of the modified mechanical model. The reason for this difference may be related to the assumption of the granular rock in the numerical simulation, which increases the resistance of granular rock to the deformation of rock mass. Therefore, the ultimate underground mining depth obtained by the theoretical calculation is suggested. Meanwhile, the surface displacement monitoring is implemented to verify the reasonability of the ultimate underground mining depth. Monitoring results show that the indicators of surface deformation are below the critical value of dangerous movement when the underground is mined to the ultimate mining depth. The practice proves that the determination of the ultimate underground mining depth in this work can ensure the safety of the open-pit and underground synergetic mining.

scholarly journals Study on shaping slope stability of dump in eastern grassland open-pit mine

2020 ◽  
Vol 194 ◽  
pp. 04043
Author(s):  
Guo Xiaoli ◽  
Yan Jiancheng ◽  
Li Xueliang ◽  
Wen Xin ◽  
Li Xingli
Keyword(s):  
Slope Stability ◽  
Slope Angle ◽  
Mining Area ◽  
Open Pit Mine ◽  
Open Pit ◽  
Open Pit Mining ◽  
Dump Slope ◽  
The Stability ◽  
Step Type ◽  
Mine Dump

The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used to compare effect of three types of slope-type (wave-shaped, slope-shaped and step-shaped slope shaping method)in outside dumping site of Baori Hiller open-pit mine. The results show that the slope stability is negatively correlated with the slope angle, and the stability of different shaping slopes is realized as wave-shaped slope (F=2.711)> Slope-shaped slope(F=2.513)>Step-shaped slope(F=1.047), in which the wave type and slope type are all within the safe range, but the step type slope is unstable; in consideration of cost, stability and erosion resistance, it is better to set the slope angle of the dump to 15°.The wave-shaped shaping method of the natural dumping of the excavation field outside the Baori Hiller open-pit mine has the best effect and is worth promoting.

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