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Influence of Multi-factor on Variation Rule of Strength Characteristics of Similar Rock Material Prepared with Gypsum and Quartz Sand
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Mingde ZHU1, 2, Jianbo WANG1, 2, Long AN1, 2, 3, Li CHENG1, 2, Kuikui HOU1, 2
Mining and Metallurgical Engineering | 2023, 43(1) : 40 - 44
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Mining and Metallurgical Engineering | 2023, 43(1): 40-44
• MINING •
Influence of Multi-factor on Variation Rule of Strength Characteristics of Similar Rock Material Prepared with Gypsum and Quartz Sand
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Mingde ZHU1, 2, Jianbo WANG1, 2, Long AN1, 2, 3, Li CHENG1, 2, Kuikui HOU1, 2
Affiliations
  • 1.Shandong Gold Mining Co Ltd, Jinan 250100, Shandong, China
  • 2.Deep Mining Laboratory of Shandong Gold Group Co Ltd, Laizhou 261442, Shandong, China
  • 3.Key Laboratory of Safe Mining of Deep Metal Mines, Ministry of Education, Northeastern University, Shenyang 110819, Liaoning, China
Published: 2023-02-01 doi: 10.3969/j.issn.0253-6099.2023.01.009
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A kind of similar rock material was prepared with gypsum and quartz sand, and influence of seven factors on the strength index of the material was analyzed by performing laboratory tests. The results show that curing temperature and material density are in positive correlation with material strength index, while curing humidity, sand-to-binder ratio, ash-to-paste ratio, fine-grained quartz sand content, as well as water content are in negative correlation with material strength index. Based on the calculation of the sensitivity indices of different influencing factors, it is found that material strength has a sensitivity of only 4.5% to curing temperature, a sensitivity of 104.9% to sand-binder ratio. Factors of curing temperature, water content, material density, curing humidity, ash-to-paste ratio, fine-grained quartz sand content and sand-to-binder ratio are in an ascending order in terms of their sensitivity to uniaxial compressive strength; while factors of sand-to-binder ratio, ash-to-paste ratio, material density, curing humidity, water content, fine-grained quartz sand content and curing temperature are in a descending order in terms of their sensitivity to tensile strength.

similar material  /  similar physical model  /  material proportion  /  uniaxial compressive strength  /  tensile strength  /  sensitivity
Mingde ZHU, Jianbo WANG, Long AN, Li CHENG, Kuikui HOU. Influence of Multi-factor on Variation Rule of Strength Characteristics of Similar Rock Material Prepared with Gypsum and Quartz Sand[J]. Mining and Metallurgical Engineering, 2023 , 43 (1) : 40 -44 . DOI: 10.3969/j.issn.0253-6099.2023.01.009
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.01.009
  • Receive Date：2022-08-21
  • Online Date：2026-03-05
  • Published：2023-02-01
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History
  • Received：2022-08-21
Funding
Affiliations
    1.Shandong Gold Mining Co Ltd, Jinan 250100, Shandong, China
    2.Deep Mining Laboratory of Shandong Gold Group Co Ltd, Laizhou 261442, Shandong, China
    3.Key Laboratory of Safe Mining of Deep Metal Mines, Ministry of Education, Northeastern University, Shenyang 110819, Liaoning, 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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