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. …
The safety and stability of tailings dam is a primary focus of researchers worldwide. With advancements in mineral processing technology, the particle size of tailings has become finer, leading to a range of technical challenges in tailings discharge and storage [].The instability of the fine-grained tailings dam can lead to serious losses of life and property, along with …
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 ...
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 ...
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
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 ...
The regular pattern of surface deformation and the mechanism of underground strata movement, especially in iron mines constructed with the block caving method, have a great influence on infrastructure on the surface, so they are an important topic for research. Based on the engineering geology conditions and the surface deformation and fracture features in …
There is a nice article in a recent edition of the journal Engineering Geology (Xia et al. 2019) examining subsidence induced by the Chengchao iron ore mine, which is located in Ezhou City, Hubei Province, China. The paper …
The tailings deposited on the banks of the rivers have a pH value of around 8.0 (Prado et al., 2019; Santos et al., 2019) and are mineralogically composed basically of quartz (SiO 2) and hematite (Fe 2 O 3), minerals that are common in the constitution of iron ores (Almeida et al., 2018; Couto et al., 2021; Duarte et al., 2021).Such tailings have also high concentrations of …
Landslides in mining engineering mainly occur in tailings dams. The evolution of monitoring indexes is important for the improvement of warning accuracy in tailings dam breaks. The velocity field and outflow discharge behavior in overtopping dam-break of an iron mine tailings dam were studied. There were two stages of the tailings flow in the model test, corresponding …
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, …
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 …
Inversion of Iron Content Mining in Tailings Reservoir ... UAV hyperspectral data collection was carried out on a tailings pond in Malanzhuang Iron Mine, Tangshan. At the same time, ground control points were deployed and soil samples were collected, as …
The measured data of the surface deformation including the horizontal and vertical displacements in the west part of Chengchao iron mine over the period of 6 years were collected and analyzed.
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 ...
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 ...
However, few studies exist on the dynamic characteristics of the tailings reservoir under seismic load (Psarropoulos and Tsompanakis 2008;Liu et al. 2012), and there have been very few reports on ...
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
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 ...
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 ...
Processes 2022, 10, 1217 3 of 15 ore body, and the lower part is a lead–zinc ore body, accompanied by tungsten, bismuth, molybdenum, gold and silver and other non-ferrous metals.
To improve the settling effect of tailings accumulation in the Chengchao iron ore mine (China), the effect of iron tailings flocculation and settling law on the mechanical properties of tailings ...
Considering the similarity between the underground tailings reservoir and one-step subsequent filling, in situ data of the one-step subsequent filling body from a mine was utilized to compare ...
In this study, an iron tailings reservoir was sampled along a particle flow path to compare the pollution characteristic and microbial communities across regions with different particle sizes. The results revealed a gradual reduction in …
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 ...
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 ...
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 ...
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 ...
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 ...
2. MINE TAILINGS AND TAILINGS FACILITIES: AN OVERVIEW Mine tailings are the waste material that remains after the economic fraction has been extracted from the mineral ore. Tailings consist of a slurry of ground rock, and water and chemical reagents that remain after processing. The composition of mine tailings varies
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 …
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 …
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-
Strategies like extracting rare earth elements and making geopolymers from tailings were explored. Techniques like bioleaching and mechanical activation can improve tailings …
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 …
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 ...