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Study on Open-Pit Precision Control Blasting of Easily Weathered Rock and Its Application

机译：易风化岩石露天开挖精确控制爆破研究与应用

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摘要

Based on the characteristics of highly weathered and broken rock in Jinfeng gold mine,the network parameters of bench blasting were optimized by Surpac software,identified as 6m×7m,maintaining the stability of rock slope.By means of the millisecond blasting technology of the hole and outside the hole,the high accuracy initiation by hole was achieved with Orica high-precision detonator.The blasting was safe and reliable,reducing the mine production cost effectively.With the method of ShotPlus simulation,the blasting order and rock movement direction were guaranteed in accordance with the expected direction,which significantly improved the rock blasting effect.It is proved that the slope damage due to blasting vibration was significantly reduced with the technology mentioned above.And the ore loss and dilution rate were controlled effectively,making a good economic and social benefits.
机译：针对金凤金矿高风化破碎岩石的特点，利用Surpac软件对台架爆破的网络参数进行了优化，确定为6m×7m，保持了岩石边坡的稳定性。爆破安全可靠，降低了矿山的生产成本。爆破安全可靠，降低爆破顺序，保证爆破顺序和岩石运动方向。符合预期方向，显着提高了爆破效果。事实证明，上述技术明显降低了爆破振动对边坡的破坏，有效控制了矿石的损失和稀释率，具有良好的经济性。和社会效益。

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  • 来源
  • 会议地点 Shenzhen(CN)Shenzhen(CN)
  • 作者

    YI Haibao; YANG Haitao; LI Ming; HAN Bin; ZHENG Lujing;

  • 作者单位

    Sinosteel Maanshan Institute of Mining Research,Maanshan,Anhui,China;

    School of Civil Environmental Engineering,University of Science and Technology Beijing,Beijing,China;

    Sinosteel Maanshan Institute of Mining Research,Maanshan,Anhui,China;

    Sinosteel Maanshan Institute of Mining Research,Maanshan,Anhui,China;

    School of Civil Environmental Engineering,University of Science and Technology Beijing,Beijing,China;

    College of Resource and Environment Engineering,Guizhou University,Guiyang,Guizhou,China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 爆破技术;
  • 关键词

    open-pit blasting; high precision; initiation by hole; ShotPlus; slope;

    机译：露天爆破；高精度；孔眼初始化； ShotPlus；坡度;

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