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室内小药量岩石爆破损伤评价方法及装置

王雁冰 于冰冰 孔骥 王兆阳 吴后为

王雁冰, 于冰冰, 孔骥, 王兆阳, 吴后为. 室内小药量岩石爆破损伤评价方法及装置[J]. 矿业科学学报, 2020, 5(6): 624-631. doi: 10.19606/j.cnki.jmst.2020.06.004
引用本文: 王雁冰, 于冰冰, 孔骥, 王兆阳, 吴后为. 室内小药量岩石爆破损伤评价方法及装置[J]. 矿业科学学报, 2020, 5(6): 624-631. doi: 10.19606/j.cnki.jmst.2020.06.004
Wang Yanbing, . Methods and devices for evaluation of blasting damage to indoor small quantity rock[J]. Journal of Mining Science and Technology, 2020, 5(6): 624-631. doi: 10.19606/j.cnki.jmst.2020.06.004
Citation: Wang Yanbing, . Methods and devices for evaluation of blasting damage to indoor small quantity rock[J]. Journal of Mining Science and Technology, 2020, 5(6): 624-631. doi: 10.19606/j.cnki.jmst.2020.06.004

室内小药量岩石爆破损伤评价方法及装置

doi: 10.19606/j.cnki.jmst.2020.06.004
详细信息
    作者简介:

    王雁冰(1987—),男,山东潍坊人,副教授,硕士生导师,主要从事岩土工程、矿建工程方面的研究工作。Tel:15901014167,E-mail:ceowyb818@163.com

Methods and devices for evaluation of blasting damage to indoor small quantity rock

  • 摘要: 爆破损伤的定量评价一直是工程爆破界非常关注的问题。本研究自主设计研发了一种主动围压与边界约束装置,解决了传统的室内小试件爆破时的边界约束和炮孔封堵效果不佳带来的冲孔问题。基于CT扫描和三维重构,提出了爆破后岩石损伤度的测试及计算方法来定量评价和分析室内小药量爆破岩石试件后的损伤破裂程度。利用该装置和方法开展不同相对围压条件下小药量室内红砂岩的爆破试验,进行爆后试件的CT扫描和CT图片的二值化处理,基于Mimics1001重构了岩石试件,发现重构的模型和真实的爆后试件具有很强的相似性。最后计算了分形维数和损伤度,发现分形维数和损伤度随围压的增大而呈现减小的趋势。本研究可为爆破损伤评价提供一种新思路。
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  • 刊出日期:  2020-12-31

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