BLASTING, Volume. 41, Issue 3, 16(2024)

Basic Method of Open-pit Mine Blasting Sharing Control Theory

LI Ping-feng1...2, XU Zhen-yang3,4,*, WANG Xue-fan2,5, GUO Run-ze3,4 and JIANG Li-chun6 |Show fewer author(s)
Author Affiliations
  • 1Hongda Blasting Engineering Group Co., Ltd., Guangzhou 510623, China
  • 2Safety Intelligent Mining of Non-Coal Open-Pit Mines Key Laboratory of National Mine Safety Supervision Bureau, Zhaoqing 526530, China
  • 3School of Mining Engineering, Liaoning University of Science and Technology, Anshan 114051, China
  • 4Liaoning Province Metal Mineral Resources Green Mining Engineering Research Center, Anshan 114051, China
  • 5China University of Geosciences Beijing, Beijing 100083, China
  • 6South China University of Technology, Guangzhou 510640, China
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    Efficient coordination between different processes is crucial in optimizing resource allocation and minimizing energy consumption during blasting operations in open-pit mines. To address these challenges, the theory of blasting sharing control is proposed, which integrates macroscopic ore fragmentation with mesoscopic damage analysis and introduces a novel ore damage model for the shoveling process. By optimizing inter-process connections and considering factors such as wear and depreciation, a comprehensive energy distribution model is developed across drilling, crushing, blasting, shoveling, and transportation processes. Evaluation and control indices are proposed for each process, leading to the establishment of a blasting sharing control model. The results demonstrate that the ore damage model reveals the multi-phase characteristics of rock blasting failure and effectively predicts the crushing energy consumption by regulating fragmentation levels. With a fitting accuracy exceeding 0.8, this model optimizes the crusher operations while reducing energy consumption. Using the blasting sharing control model enables calculation of the optimal solutions for blast parameter design while establishing an optimal comprehensive energy consumption formula under the constraint conditions, thus enabling the accurate adjustment of energy at each link and providing strong support for efficient, safe, and sustainable mine operations.

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    LI Ping-feng, XU Zhen-yang, WANG Xue-fan, GUO Run-ze, JIANG Li-chun. Basic Method of Open-pit Mine Blasting Sharing Control Theory[J]. BLASTING, 2024, 41(3): 16

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    Paper Information

    Category:

    Received: Aug. 11, 2024

    Accepted: Dec. 20, 2024

    Published Online: Dec. 20, 2024

    The Author Email: Zhen-yang XU (xuzhenyang@ustl.edu.com)

    DOI:10.3963/j.issn.1001-487x.2024.03.003

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