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Energy Transformation and Time Effectiveness of Dynamical System for Breaking Weakened Mineral Rock
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Xueqing WANG1, 2, Hongping TANG2, Jianhua WANG2, Yu ZOU1
Mining and Metallurgical Engineering | 2024, 44(1) : 25 - 30
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Mining and Metallurgical Engineering | 2024, 44(1): 25-30
• MINING •
Energy Transformation and Time Effectiveness of Dynamical System for Breaking Weakened Mineral Rock
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Xueqing WANG1, 2, Hongping TANG2, Jianhua WANG2, Yu ZOU1
Affiliations
  • 1.School of Mechanics & Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China
  • 2.State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources, Changsha 410012, Hunan, China
Published: 2024-02-01 doi: 10.3969/j.issn.0253-6099.2024.01.006
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Based on typical nonlinear negative exponent constitutive relations and catastrophe characteristic of weakened mineral rock, the variation of energy transformation and time effectiveness with mechanism stiffness in catastrophic and non-catastrophic breakup were analyzed. The results show that the catastrophic breakup induced by low mechanism stiffness will dramatically reduce the energy transformation efficiency of dynamical system and time effectiveness of rock breakage. From the perspective of energy utilization and rock-breaking efficiency, it is not appropriate to equip a dynamical system for rock breakage with low mechanism stiffness. Finally, an appropriate range of mechanism stiffness is provided for reference in design.

mineral rock  /  weakened property  /  dynamical system for rock breakage  /  energy transformation  /  time effectiveness of rock breakage
Xueqing WANG, Hongping TANG, Jianhua WANG, Yu ZOU. Energy Transformation and Time Effectiveness of Dynamical System for Breaking Weakened Mineral Rock[J]. Mining and Metallurgical Engineering, 2024 , 44 (1) : 25 -30 . DOI: 10.3969/j.issn.0253-6099.2024.01.006
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Article Info
doi: 10.3969/j.issn.0253-6099.2024.01.006
  • Receive Date：2023-08-29
  • Online Date：2026-03-20
  • Published：2024-02-01
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  • Received：2023-08-29
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Affiliations
    1.School of Mechanics & Civil Engineering, China University of Mining & Technology-Beijing, Beijing 100083, China
    2.State Key Laboratory of Exploitation and Utilization of Deep Sea Mineral Resources, Changsha 410012, Hunan, 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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