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Dynamic Mechanics Experiment Practice and Analysis Methods of Rock Materials in Blasting Engineering Teaching
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Rong-zhou YANGa, b, Ying XUa, b
Blasting | 2024, 41(3) : 248 - 260
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Blasting | 2024, 41(3): 248-260
BLASTING SAFETY
Dynamic Mechanics Experiment Practice and Analysis Methods of Rock Materials in Blasting Engineering Teaching
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Rong-zhou YANGa, b, Ying XUa, b
Affiliations
  • a.School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
  • b.State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China
Published: 2024-09-01 doi: 10.3963/j.issn.1001-487X.2024.03.029
Outline
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Blasting Engineering is an essential core course for civil engineering and mining majors. To improve the students' understanding on dynamic mechanical response and damage mechanism of rock materials, the experimental teaching contents of explosion and impact dynamics of rock materials were set up in a training plan to achieve the teaching goal of the course of Blasting Engineering. In view of students' lack of theoretical knowledge and experimental basis of impact dynamics in blasting engineering, the split Hopkinson pressure bar (SHPB) experiment technology and two-dimensional plate blasting (TDPB) experiment technology were applied to the practical teaching of Blasting Engineering. Firstly, the experimental system compositions and calculation principles of SHPB and TDPB were introduced. Secondly, the course contents of SHPB impact compression experiment and TDPB central blasting experiment of rock materials were designed. Thirdly, the dynamic mechanical behavior and energy evolution characteristics of sandstone material under the SHPB experiment and the strain wave evolution and dynamic damage and fracture behavior mechanism of sandstone-like material under the TDPB experiment were analyzed. Finally, the students′ in-depth discussion on the critical problems of rock impact dynamics was guided. The innovative combination of SEM testing technology and impact dynamics experimental technology revealed the damage mechanism of rock materials under SHPB and TDPB experiments to students from the micro-level, which gave the students a clear understanding of meso-damage and macro-failure. The effect of teaching practice shows that the student's theoretical and practical ability is exercised by combining the experimental course of SHPB and TDPB with the theoretical course of Blasting Engineering, which leads to the improvement of students' scientific research ability and the sense of teamwork, and the fulfillment of the teaching goals.

blasting engineering  /  experimental teaching  /  split hopkinson pressure bar(SHPB)  /  two-dimensional plate blasting(TDPB)  /  rock blasting
Rong-zhou YANG, Ying XU. Dynamic Mechanics Experiment Practice and Analysis Methods of Rock Materials in Blasting Engineering Teaching[J]. Blasting, 2024 , 41 (3) : 248 -260 . DOI: 10.3963/j.issn.1001-487X.2024.03.029
  • Research Project of School-level Education and Teaching Reform in Anhui University of Science and Technology(2023xjjy12)
  • Natural Science Research Project of Anhui Educational Committee(2023AH051167)
  • Scientific Research Foundation for High-level Talents of Anhui University of Science and Technology(2022yjrc84)
  • National Natural Science Foundation of China(52074009; 52274071)
Year 2024 volume 41 Issue 3
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.03.029
  • Receive Date:2023-12-22
  • Online Date:2026-03-20
  • Published:2024-09-01
Article Data
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History
  • Received:2023-12-22
Funding
Research Project of School-level Education and Teaching Reform in Anhui University of Science and Technology(2023xjjy12)
Natural Science Research Project of Anhui Educational Committee(2023AH051167)
Scientific Research Foundation for High-level Talents of Anhui University of Science and Technology(2022yjrc84)
National Natural Science Foundation of China(52074009; 52274071)
Affiliations
    a.School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China
    b.State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China

Corresponding:

XU Ying (1965-), male, Ph. D, professor, doctoral supervisor, mainly engaged in the research of blasting technology and engineering, (E-mail) .
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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