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Numerical Analysis and Experimental Study on Failure Process of Drilling and Blasting in Reinforced Concrete Columns
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Xiao-wu HUANG1, Xian-qi XIE1, 2a, 2b, Yong-sheng JIA1, 2a, 2b, Chang-bang LIU1, Ying-kang YAO2a, 2b, Yue WU1
Blasting | 2025, 42(2) : 1 - 12
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Blasting | 2025, 42(2): 1-12
• THEORETICAL AND TECHNOLOGICAL EXPLORATION •
Numerical Analysis and Experimental Study on Failure Process of Drilling and Blasting in Reinforced Concrete Columns
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Xiao-wu HUANG1, Xian-qi XIE1, 2a, 2b, Yong-sheng JIA1, 2a, 2b, Chang-bang LIU1, Ying-kang YAO2a, 2b, Yue WU1
Affiliations
  • 1.Wuhan Explosion & Blasting Co., Ltd., Wuhan 430056, China
  • 2.a.State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China
  • 2.b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China
Published: 2025-06-01 doi: 10.3963/j.issn.1001-487X.2025.02.001
Outline
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In blasting demolition projects of housing buildings, reinforced concrete columns serve as the primary load-bearing structural elements and consequently represent the most frequently targeted components for controlled demolition. The effectiveness of reinforced concrete column demolition through blasting operations plays a pivotal role in ensuring structural instability and controlling the overall collapse mechanism. The evolution of modern reinforced concrete columns, characterized by increased cross-sectional dimensions, higher reinforcement densities, and enhanced material strengths, has significantly elevated the technical complexity of the design of blasting parameters and the protection of flying rocks. The Particle Blasting Method coupled with the Finite Element Method (PBM-FEM) was employed to simulate the dynamic process of explosion impact loading and explosion gas escaping from the borehole through the high-speed motion collision of particles. Full-scale 1∶1 physical model tests were conducted using industrial electronic detonators to accurately replicate the blasting demolition process of high-rise building structural members. The research reveals critical insights into the failure mechanisms and damage propagation characteristics of reinforced concrete columns under controlled demolition conditions. The results show that the explosion gas escapes from the orifice and reduces the utilization rate of explosive energy due to the limited constraint effect of the blocking material on the side of the blast hole. The severity of concrete spalling on the surface of the column is left and right sides > front side > back side. The direction of the minimum resistance line is the main direction to induce concrete damage and throwing.

blasting demolition  /  reinforced concrete  /  drilling and blasting  /  structure failure  /  numerical simulation
Xiao-wu HUANG, Xian-qi XIE, Yong-sheng JIA, Chang-bang LIU, Ying-kang YAO, Yue WU. Numerical Analysis and Experimental Study on Failure Process of Drilling and Blasting in Reinforced Concrete Columns[J]. Blasting, 2025 , 42 (2) : 1 -12 . DOI: 10.3963/j.issn.1001-487X.2025.02.001
Funding
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  • Strategic Research and Consulting Project of Chinese Academy of Engineering(2023XZ35)
  • National Natural Science Foundation Project(52478525)
Appendix
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Year 2025 volume 42 Issue 2
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140
58
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Article Info
doi: 10.3963/j.issn.1001-487X.2025.02.001
  • Receive Date：2025-02-19
  • Online Date：2026-03-19
  • Published：2025-06-01
Article Data
Affiliations
History
  • Received：2025-02-19
Funding
Strategic Research and Consulting Project of Chinese Academy of Engineering(2023XZ35)
National Natural Science Foundation Project(52478525)
Affiliations
    1.Wuhan Explosion & Blasting Co., Ltd., Wuhan 430056, China
    2.a.State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China
    2.b.Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China

Corresponding:

XIE Xian-qi (1960-), male, professor-level senior engineer, academician of Chinese Academy of Engineering, mainly engaged in engineering blasting theory and technology research, (E-mail) .
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表12种不同金属材料的力学参数
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Number of
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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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