| 爆破振动作用下高层建筑振速变化规律研究 |
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| 引用本文： | 雷振,李卓,雷兴海,游帅,贺路,黄聪. 爆破振动作用下高层建筑振速变化规律研究[J]. 工程爆破, 2022, 28(2): 7-10 |
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| 作者姓名： | 雷振 李卓 雷兴海 游帅 贺路 黄聪 |
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| 作者单位： | 贵州理工学院矿业工程学院,贵阳550003,昆明理工大学公共安全与应急管理学院,昆明650093,贵州大学矿业学院,贵阳550025,贵州大学土木工程学院,贵阳550025 |
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| 摘 要： | 多层介质由压实层、碎石层和混凝土层组成。用量纲分析法导出多层介质中爆破混凝土层破坏效应的函数表达式。通过模拟实验,获得了药包不同药量、不同埋深条件下多层介质破坏效应的试验数据,并通过回归分析,拟合出漏斗的可见深度、实际半径与装药量关系的经验表达式。试验中利用高速录像研究了介质表层鼓包运动的规律。试验结果表明,混凝土层和碎石层在鼓包运动的中期对爆炸破坏效应有较明显的影响。
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| 关 键 词： | 工程爆破 数值模拟 高层建筑 爆破振动测试 峰值振速 |
PRIMARY STUDY ON ATTENUATION OF UNDERWATER SHOCK WAVE BY USING AIR INSULATION |
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| LEI Zhen,LI Zhuo,LEI Xing-hai,YOU Shuai,HE Lu,HUANG Cong. PRIMARY STUDY ON ATTENUATION OF UNDERWATER SHOCK WAVE BY USING AIR INSULATION[J]. Engineering Blasting, 2022, 28(2): 7-10 |
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| Authors: | LEI Zhen LI Zhuo LEI Xing-hai YOU Shuai HE Lu HUANG Cong |
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| Abstract: | In order to avoid the destroy of submerge structures or resources by shock wave produced by underwater blasting,a new method of making use of the air interlayer to decay the explosive shock wave is proposed in this paper.Through the theoretical analysis the paper makes a conclusion,which is tested by experiment,that the air insulation is effectively to reduce the overpressure peak value of shock wave of underwater. |
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| Keywords: | Underwater blasting Air insulation Shock wave attenuation |
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