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Study on Parameters of Anhydrite RHT Dynamic Model
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Kai MA1a, Gao-feng REN1a, 1b, Yong-xiang GE1a, 1b, 1c, Fu-cheng WANG2, Yi-hu SHI1a, Cong-rui ZHANG1a, 1b, Lu-wei ZHANG1a, Liang ZHAO1a, Yan YU3
Blasting | 2024, 41(4) : 35 - 44
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Blasting | 2024, 41(4): 35-44
• THEORETICAL AND TECHNOLOGICAL EXPLORATION •
Study on Parameters of Anhydrite RHT Dynamic Model
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Kai MA1a, Gao-feng REN1a, 1b, Yong-xiang GE1a, 1b, 1c, Fu-cheng WANG2, Yi-hu SHI1a, Cong-rui ZHANG1a, 1b, Lu-wei ZHANG1a, Liang ZHAO1a, Yan YU3
Affiliations
  • 1a.School of Resources and Environmental Engineering, Wuhan University of technology, Wuhan 430070, China
  • 1b.Key Laboratory of Green Utilization of Key Non-metallic Mineral Resources, Ministry of Education, Wuhan University of technology, Wuhan 430070, China
  • 1c.School of Civil Engineering and Architecture, Wuhan University of technology, Wuhan 430070, China
  • 2.Anhui Chizhou conch cement Co., LTD., Chizhou 247100, China
  • 3.Huaxin Cement Co., Ltd., Wuhan 430205, China
Published: 2024-12-01 doi: 10.3963/j.issn.1001-487X.2024.04.005
Outline
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Numerical simulation is a vital tool for studying the dynamic characteristics of rock, with the accurate determination of models and parameters being the key to ensuring the reliability of simulation results. Among the 34 parameters of the RHT model, 19 parameters can be obtained through experimental and theoretical calculations, but the remaining 15 are challenging to determine. Nineteen basic parameters of anhydrite were obtained through experimental analysis and theoretical calculation to identify the model parameters suitable for anhydrite. Furthermore, the LS-DYNA performed SHPB simulation tests on the 15 challenging parameters. The sensitivity of stress-strain curves to these parameters was compared, and the values were optimized. Parameters with high sensitivity were identified through orthogonal testing. Finally, simulation results were compared with laboratory test results. The findings indicate that RHT parameters B, , n, D1, nf, Pcomp and N have minimal impact on the stress strain curve, while parameters A, , , Q0, , ξ, and Af significantly influence the curve. Furthermore, the parameters with a significant impact on the stress-strain curve were determined by orthogonal tests, and the RHT model parameters fitting the SHPB impact test curve were obtained. Under varying loading strain rates, the dynamic stress-strain curves and failure patterns of anhydrite simulation tests were consistent with laboratory tests, verifying the suitability of the model parameters for anhydrite.

anhydrite  /  RHT model  /  sensibility  /  orthogonal test  /  SHPB
Kai MA, Gao-feng REN, Yong-xiang GE, Fu-cheng WANG, Yi-hu SHI, Cong-rui ZHANG, Lu-wei ZHANG, Liang ZHAO, Yan YU. Study on Parameters of Anhydrite RHT Dynamic Model[J]. Blasting, 2024 , 41 (4) : 35 -44 . DOI: 10.3963/j.issn.1001-487X.2024.04.005
Funding
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  • National Natural Science Foundation of China(52174087)
  • Study on control mechanism of disasters chain-scission and fine development of underground goaf masses in hard gypsum mine
Appendix
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Year 2024 volume 41 Issue 4
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.04.005
  • Receive Date：2024-05-28
  • Online Date：2026-03-19
  • Published：2024-12-01
Article Data
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History
  • Received：2024-05-28
Funding
National Natural Science Foundation of China(52174087)
Study on control mechanism of disasters chain-scission and fine development of underground goaf masses in hard gypsum mine
Affiliations
    1a.School of Resources and Environmental Engineering, Wuhan University of technology, Wuhan 430070, China
    1b.Key Laboratory of Green Utilization of Key Non-metallic Mineral Resources, Ministry of Education, Wuhan University of technology, Wuhan 430070, China
    1c.School of Civil Engineering and Architecture, Wuhan University of technology, Wuhan 430070, China
    2.Anhui Chizhou conch cement Co., LTD., Chizhou 247100, China
    3.Huaxin Cement Co., Ltd., Wuhan 430205, China

Corresponding:

GE Yong-xiang (1995-), male, born in Zhangye City, Gansu Province, Ph. D, research associate, mainly engaged in research on rock mechanics and rock dynamics of mining rock mass, (E-mail) .
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https://castjournals.cast.org.cn/joweb/bp/EN/10.3963/j.issn.1001-487X.2024.04.005
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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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