螺旋管聚能药包根底光面爆破机理研究及应用

邓永兴 张中雷 管志强 杨中树 马宏昊 沈兆武

邓永兴, 张中雷, 管志强, 杨中树, 马宏昊, 沈兆武. 螺旋管聚能药包根底光面爆破机理研究及应用[J]. 爆炸与冲击, 2020, 40(1): 015201. doi: 10.11883/bzycj-2018-0495
引用本文: 邓永兴, 张中雷, 管志强, 杨中树, 马宏昊, 沈兆武. 螺旋管聚能药包根底光面爆破机理研究及应用[J]. 爆炸与冲击, 2020, 40(1): 015201. doi: 10.11883/bzycj-2018-0495
DENG Yongxing, ZHANG Zhonglei, GUAN Zhiqiang, YANG Zhongshu, MA Honghao, SHEN Zhaowu. Research and application of root smooth blasting mechanism of shaped charge in spiral tube[J]. Explosion And Shock Waves, 2020, 40(1): 015201. doi: 10.11883/bzycj-2018-0495
Citation: DENG Yongxing, ZHANG Zhonglei, GUAN Zhiqiang, YANG Zhongshu, MA Honghao, SHEN Zhaowu. Research and application of root smooth blasting mechanism of shaped charge in spiral tube[J]. Explosion And Shock Waves, 2020, 40(1): 015201. doi: 10.11883/bzycj-2018-0495

螺旋管聚能药包根底光面爆破机理研究及应用

doi: 10.11883/bzycj-2018-0495
基金项目: 国家自然科学基金(51674229,51874267);中国科学技术大学重要方向项目培育基金(WK2480000002)
详细信息
    作者简介:

    邓永兴(1992- ),男,硕士研究生,dyxustc@mail.ustc.edu.cn

    通讯作者:

    马宏昊(1980- ),男,博士,副教授,hhma@ustc.edu.cn

  • 中图分类号: O389

Research and application of root smooth blasting mechanism of shaped charge in spiral tube

  • 摘要: 针对现阶段光面爆破存在的根底不平整问题以及炸药能量利用率低的问题,提出了一种螺旋管聚能药包。为探究药包的破岩机理,采用LS-DYNA数值模拟和钻孔爆破试验相结合的方法研究了此药包的破岩机理。数值模拟结果表明,螺旋管聚能药包能形成连续金属射流侵彻炮孔孔壁,孔壁被侵彻出垂直炮孔方向的裂缝。用普通柱状药包和此药包进行钻孔爆破对比试验,结果表明,螺旋管药包试样的残留炮孔孔壁有螺旋形侵彻缝,印证了数值模拟的侵彻结果。并且相比于普通柱状药包,其炮孔利用率提高7.2%、扩孔率提高8.4%。将此药包应用于舟山绿色石化基地围垦区,结果表明,螺旋管药包爆破区域根底高度平均比普通装药低14 cm,根底高度标准差比普通装药小12 cm。研究成果在爆破工程应用中有很大价值,可以降低施工成本、加快施工进度、提高爆破效果,适合在矿山开采、井巷掘进等工程中使用。
  • 图  1  试验装置

    Figure  1.  Experimental apparatus

    图  2  药包结构

    Figure  2.  Structure of explosive charge

    图  3  爆破根底结果

    Figure  3.  Results of root bottoms

    图  4  爆破残留炮孔结果

    Figure  4.  Results of residual boreholes

    图  5  计算模型

    Figure  5.  Calculation model

    图  6  射流形成过程

    Figure  6.  Process of jet formation

    图  7  混凝土破碎过程

    Figure  7.  Process of concrete breaking

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出版历程
  • 收稿日期:  2018-12-12
  • 修回日期:  2019-02-26
  • 网络出版日期:  2020-01-25
  • 刊出日期:  2020-01-01

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