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Experimental Research and Prediction Analysis of Rheological Parameters of Tailings Backfill with Multi-Factors
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Jinzhi LIU, Fei YIN, Ziming GAO
Mining and Metallurgical Engineering | 2023, 43(6) : 15 - 19
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Mining and Metallurgical Engineering | 2023, 43(6): 15-19
• MINING •
Experimental Research and Prediction Analysis of Rheological Parameters of Tailings Backfill with Multi-Factors
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Jinzhi LIU, Fei YIN, Ziming GAO
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  • College of Information and Technology, Shanghai Ocean University, Shanghai 201306, China
Published: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.004
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Tailings slurry with different mass concentration and cement to sand ratio was prepared with a certain kind of tailings, which was taken to study for its rheological properties by adopting Brookfield R/S+ rheometer. It is found that at room temperature, the mass concentration of paste slurry has a stronger effect on the rheological properties of paste than the cement to sand ratio of slurry. When the concentration is lower than 64%, the cement to sand ratio has little effect on the rheological properties. As the slurry concentration increases, its yield stress and viscosity present exponential growth, which increase at the fastest rate when the slurry concentration is 68%. As the cement to sand ratio of slurry increases, its yield stress and viscosity increase approximately linearly. The influences of slurry concentration, cement to sand ratio, gradation and temperature on rheological properties of slurry were studied by experiments, and then the rheological parameters were predicted by using XGBoost based on the obtained experimental data. It is shown that the relative errors and variances between the predicted results and the actual values are within a reasonable range, which has proven the accuracy of the prediction model.

slurry concentration  /  cement to sand ratio  /  tailings backfill  /  rheological parameters  /  prediction  /  yield stress  /  viscosity
Jinzhi LIU, Fei YIN, Ziming GAO. Experimental Research and Prediction Analysis of Rheological Parameters of Tailings Backfill with Multi-Factors[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 15 -19 . DOI: 10.3969/j.issn.0253-6099.2023.06.004
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Year 2023 volume 43 Issue 6
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doi: 10.3969/j.issn.0253-6099.2023.06.004
  • Receive Date：2023-06-29
  • Online Date：2026-03-05
  • Published：2023-12-01
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  • Received：2023-06-29
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    College of Information and Technology, Shanghai Ocean University, Shanghai 201306, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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