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In this paper, the two types of tailings from an iron mine in South China were systematically investigated in terms of their mechanical characteristics including the physical features and dynamic response. The deformation of tailing reservoir in design was evaluated considering the earthquake load. This study provides a scientific basis for ...
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Keywords: iron ore tailings, mining waste, iron oxide, technological application. 1. Introduction. Iron is the fourth most abundant . element and accounts for about 5% of . the Earth's crust ...
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The tailings were sampled from Yangjiawan tailing reservoir of Chengchao Iron Mine, and the moisture content test, particle size distribution analysis and scanning electron microscope test (SEM) were carried out on the samples. It is measured that the average moisture content of the tailings is 12%, and the gradation is generally poor.
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The Chengmendong Iron Mine tailings reservoir has been closed for three years, and no modification or remediation during that time. At each sampling. Particle size and mineralogical composition of tailings sites. A distinct particle size gradation was observed across various regions along the tailings flow path within the reservoir. The ...
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The Chengchao Iron Mine is located in Hubei Province in China and has a minable reserve of iron-ore of over 200 million tons.
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With more and more attentions paid to the environmental protection, underground filling mining method has made a great contribution to the disposal of mining tailings waste and the control of surface subsidence above the mine gob area [1].A typical method is to simply backfill tailings and other solid wastes to realize the comprehensive utilization of tailings …
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Request PDF | On Apr 12, 2022, Hui-wei Su and others published Mathematical and Computational Modeling of Inversion of Iron Content Mining in Tailings Reservoir Using Unmanned-aerial-vehicle ...
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Strategies like extracting rare earth elements and making geopolymers from tailings were explored. Techniques like bioleaching and mechanical activation can improve tailings …
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dispose of produced tailings in tailing reservoirs. Engineering de-sign for the two tailing dams is necessary before the mines can be exploited. In this study, a series of laboratory experiments were ... duced coarse iron and fine iron tailings from the Yuhezhai iron mine were about 65–70 and 70 wt%, respectively, and the concen-
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30% chengchao iron tailings on the basis of the formula of vitr ified ... et al. (2006) Preparation of Light Heat-Insulation Wall Material Using Handan Iron Mine's Tailings. Metal Mine, (8): 76-78
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The tailings were sampled from Yangjiawan tailing reservoir of Chengchao Iron Mine, and the moisture content test, particle size distribution analysis and scanning electron microscope test (SEM ...
WhatsApp: +86 18221755073
In this paper, the two types of tailings from an iron mine in South China were systematically investigated in terms of their mechanical characteristics including the physical features and …
WhatsApp: +86 18221755073
An assessment model of land ecological quality (LEQ) and its indicator system were established from the viewpoint of landscape ecology.Taking the coal mining area in Jiawang as the case studythe ...
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This research study investigates the extent of heavy metal pollution and pollution trends in agricultural soil in mining areas during different time periods. A total of 125 soil samples were collected from two mining areas in China, the Chengchao iron mine and Tonglushan ancient copper mine. The samples were analyzed for various potentially toxic elements (PTEs). The …
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The iron mine tailings accumulation in dams is an environmental and economic problem. The composite based on high-density polyethylene/iron mine tailing production for the application of wood ...
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Adding to this, the legacy of environmental damage from abandoned mines is worrying; in Canada there are around 10,000 abandoned mines, 50,000 in Australia, 6,000 in South Africa, and 9,500 coal ...
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An iron mine located in Anhui Province and a copper mine situated in Yunnan Province were utilized as case studies to validate the accuracy of the theoretical model [10,24]. The average thickness of an iron ore body is 85 m, and the dip angle of the ore body is about 20~30°. ... the construction site of the tailings reservoir selected by the ...
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Aerocrete has been trial-produced successfully with the low-silicon irom are tailings. It has opened up a new way for the exploitation of the low-silicon iron ore tailings.
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A total of 125 soil samples were collected from two mining areas in China, the Chengchao iron mine and Tonglushan ancient copper mine. The samples were analyzed for various potentially toxic ...
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The mechanism of footwall crack deformation in Chengchao Iron is as follows: the adjustment of the tectonic stress field caused structural surface through fractures and …
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By using the proposed drainage system, the height of the tailings dam of this mine can be increased from 45 m (elevation 2015 m) up to 60 m (elevation 2030 m), which will increase by 8 million ...
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A review on complex utilization of mine tailings: Recovery of rare earth elements and residue valorization. ... (0.01–0.3 wt%) [24], iron tailings (0.015–0.08 wt%) [78], lead-zinc tailings (0.2–0.3 wt%) ... which constitute a substantial secondary resource reservoir. Integrating MA into hydrometallurgical and bio-hydrometallurgical ...
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The tailings were sampled from Yangjiawan tailing reservoir of Chengchao Iron Mine, and the moisture content test, particle size distribution analysis and scanning electron microscope...
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Based on results of surface deformation and shaft cracks monitoring of Chengchao iron mine, the damage reasons of East main shaft are analyzed, by ways of numerical simulation; and then the ...
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The location is 30.319, 114.918 if you want to take a look. Mining started at the Chengchao iron ore mine in 1969, with the mining method focusing on sub-level caving. Subsidence started to be observed in the construction period for the mine (between 1958 and …
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tailings impoundments are among the largest structures created by human kind. The safety of the tailing reservoir is one of the major concerns. The characteristics of tailings are a result of the composition of the parent rock and the method of ore processing. In this paper, the two types of tailings from an iron mine in South China were
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Chengchao Iron Mine of Wuhan Iron and Steel (Group) Company, Ezhou, Hubei 436051, China; Received: Online: Published: Supported by: This work was supported by the National Natural Science Foundation for Youth Scholars of China (41602325, 11602284) and the General Program of National Natural Science Foundation of ...
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Taking caving mining method in Chengchao Iron Mine as engineering background, based on GPS monitoring data, deep rock mass deformation and collapse monitoring data and on-the-spot surface movement ...
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Due to the high cost of land acquisition and the difficulty of tailing reservoir construction in Luohe Iron Mine, after careful consideration, the sublevel caving method is abandoned and the suitable filling mining method is explored. …
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In fact, the main concern with such tailing dams is the stability during the mining operation and after tailing reservoir closure. Azam and Li ... The concentrations of the produced coarse iron and fine iron tailings from the Yuhezhai iron mine were about 65–70 and 70 wt%, respectively, and the concentrations of the coarse copper and fine ...
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Mine filling can protect the limited land resources,save expenditure,realize no wastes emission and eliminate the potential hazards.The mixing proportion experiment of filling material which consisted of the full tailing taken from the Chengchao iron mine as the aggregate and the common 425# cement as the cementing was carried out.The settlement test,viscosity test and slump …
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Download scientific diagram | Subsidence features at China's Chengchao iron ore mine. Image courtesy of Google Earth, taken in 2018. from publication: Review on the Development of Mining Method ...
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The experimental study on the tailingsfrom Chengchao Iron Ore Mine has been introduced briefly. By analyzing the chemical and mineral composi tions of Chenchao Iron Ore. the technological process has been constituted. According to the comparison experiments, the optimal proportion of cement and time. dosage of the additional silicon-materials, calcium-silicon proportion, dosage …
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It has been found that 31.25% of iron ore mine tailings dams collapsed due to slope instability, 18.75% due to overtopping, 6.25% due to liquefaction-related instabilities, …
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According to the history and current situation of ground caving-in in the eastern Chengchao Iron Mine, a 3D surface model of ground caving-in was reconstructed with the help of a 3D laser scanning ...
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The engineering geological and hydrogeological conditions in the eastern mining area of the Chengchao Iron Mine are analyzed in detail. The results are combined with the results of site ...
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