Non-explosive mining and waste utilization for achieving green mining in underground hard rock mine in China

Wang, Shaofeng; Sun, Licheng; Huang, Linqi; Li, Xibing; Shi, Ying; Yao, Jinrui; Du, Shao-lun

doi:10.1016/s1003-6326(19)65099-5

Cited by 47 publications

(9 citation statements)

References 24 publications

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“…In recent years, with the dual background of building an innovative country and a green development strategy, some new concepts, such as developing smart mines and tailless mines [18], have been proposed. Some challenges, such as deep mining, the comprehensive utilization of resources, and ecological restoration, have made partial breakthroughs and innovations [19], and the release and implementation of a series of policy incentive documents have forced mining enterprises to re-examine their development model, promote the establishment of green mine transformation, and gain a competitive edge [20].…”

Section: Introductionmentioning

confidence: 99%

Green Mining Strategy Selection via an Integrated SWOT-PEST Analysis and Fuzzy AHP-MARCOS Approach

Guo-yan

Zhao

2022

Sustainability

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Deciding on an appropriate development strategy is one of the most crucial aspects of the mining industry’s green transition. This research introduces a novel integrated decision support model that can be applied to analyze various environmental factors and determine development strategies. In this study, a strengths, weaknesses, opportunities, and threats (SWOT) analysis is employed from multiple perspectives, including political, economic, social, and technological (PEST), to assess the internal and external factors that influence green mining. The fuzzy analytic hierarchy process (AHP) is used to analyze the factor weights quantitatively, and the fuzzy Measurement of Alternatives and Ranking according to Compromise Solution (MARCOS) method is used to rank and select development strategies. According to the results, “grasp the trend of green development and improve the protection and exploitation level of mineral resources” is found to be the final optimal strategy. Comparative analysis and sensitivity analysis confirmed the accuracy of the model and the case study results.

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Section: Introductionmentioning

confidence: 99%

Green Mining Strategy Selection via an Integrated SWOT-PEST Analysis and Fuzzy AHP-MARCOS Approach

Guo-yan

Zhao

2022

Sustainability

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“…As an efficient method for phosphogypsum (PG) management, cemented PG backfill is applied in several mines in China, including the Kaiyang phosphate mine, the Jinchuan nickel mine and the Huangmailing phosphate mine [ 2 , 10 , 11 , 12 ]. PG is a type of solid waste produced via phosphoric acid production, which can be simplified with the following equation [ 13 , 14 ]: Ca 5 (PO 4 ) 3 F + 5H 2 SO 4 + 10H 2 O → 3H 3 PO 4 + 5CaSO 4 (H 2 O) 2 + HF + heat …”

Section: Introductionmentioning

confidence: 99%

The Release of Pollutants through the Bleeding of Cemented Phosphogypsum Backfill: Link to Protocols for Slurry Preparation

et al. 2022

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The present study investigated the effects of protocols for slurry preparation on the release of pollutants into bleeding water from cemented phosphogypsum (PG) backfill. Backfill slurry was prepared using four different protocols in which different parameters varied, including binder/PG ratio, solid concentration, binder type and mixing procedure. The concentrations of phosphate, fluoride and sulfate and the pH values of the obtained bleeding water were measured. The results demonstrated that the slurry preparation protocols affected the quantities of pollutants through the concentrations of pollutants in bleeding water and the bleeding rate. On the one hand, the binder/PG ratio was the key factor influencing the concentrations of all pollutants in bleeding water. Comparatively speaking, the binder type and mixing procedure had an obvious influence on the fluoride concentration but had little influence on the phosphate and sulfate concentrations in the bleeding water. On the other hand, the protocols for slurry preparation affected the bleeding rate by determining the water retention and water content of the backfill slurry. The most effective protocol for slurry preparation for cemented PG backfill could reduce the bleeding rate and enhance the immobilization of pollutants, minimizing the phosphate concentration in bleeding water to below 0.2 mg/L. However, it appeared that the fluoride concentration was still tens of milligrams per liter (over the limit of 10 ten milligrams per liter), to which attention should be paid.

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“…Deep rock mass occurs in a complex environment consisting of a high-stress field, high-temperature field, high permeability–pressure field, fast unloading, and dynamic disturbance caused by hard-rock mining, resulting in frequent disasters [ 8 , 9 , 10 , 11 , 12 ], as shown in Figure 1 . For example, deep mining of the Kaiyang phosphate mine has led to a wide range of loose circles in the rock surrounding the underground engineering owing to the action of high stress; this simultaneously results in decreased rock strength, increased unstable block, and groundwater seepage, which has caused great engineering geological disasters [ 13 , 14 , 15 ]. For example, plate cracks and rock bursts occurred in the side wall of a 500 m underground tunnel at the west mountain entrance of the Linglong gold mine in Shandong Province [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Wave Dissipation and Energy-Absorption Characteristics of Wave-Absorbing Metal Plates with Different Aperture Sizes and Thicknesses under True-Triaxial Static-Dynamic-Coupling Loading

Huang

Zeng

et al. 2022

Materials

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Deep rock masses exist in a complex environment with multi−field coupling; therefore, it is necessary to develop a true−triaxial static−dynamic−coupling loading test machine to explore their characteristics and mechanical response mechanism. To meet the test requirements of true−triaxial loading and strong disturbance, a wave−absorbing metal plate was selected as the boundary material between the granite and transmission end, and the modified SHPB was used to perform static−dynamic−coupling loading tests. In this study, two series of experiments on wave− absorbing metal plates were conducted, which were fixed aperture sizes with different thicknesses and fixed thicknesses with different aperture sizes. The static−dynamic−coupling loading tests on each aperture size and plate thickness were carried out under the condition of equal energy impact. The effects of the aperture size and plate thickness on the incident− and reflection−stress curves, reflectivity, energy consumption law, energy evolution, and other mechanical properties of the wave−absorbing metal plate materials were studied. The results show that the peak stress and reflectivity decrease with increasing aperture size and plate thickness, and the influence of the thickness is greater than that of the aperture size. The energy−absorption rate of the wave−absorbing metal plate increased with increasing thickness and aperture size and was maximized when the aperture size and thickness were 6–7 mm and 3–4 mm, respectively. The variation trend of the energy reflectance is opposite to that of the energy absorption and reaches a minimum when the aperture size is 6–7 mm and plate thickness is 3–4 mm. The energy transmittance of the wave−absorbing metal plate fluctuated in a stable range, but the variation range was less obvious compared to that of the energy−absorption rate.

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Non-explosive mining and waste utilization for achieving green mining in underground hard rock mine in China

Cited by 47 publications

References 24 publications

Green Mining Strategy Selection via an Integrated SWOT-PEST Analysis and Fuzzy AHP-MARCOS Approach

Green Mining Strategy Selection via an Integrated SWOT-PEST Analysis and Fuzzy AHP-MARCOS Approach

The Release of Pollutants through the Bleeding of Cemented Phosphogypsum Backfill: Link to Protocols for Slurry Preparation

Wave Dissipation and Energy-Absorption Characteristics of Wave-Absorbing Metal Plates with Different Aperture Sizes and Thicknesses under True-Triaxial Static-Dynamic-Coupling Loading

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