| 竖井内爆炸动力响应分析 |
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| 引用本文： | 杨旭升,冯淑芳,高鑫. 竖井内爆炸动力响应分析[J]. 岩土力学, 2010, 31(Z1): 74-78 |
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| 作者姓名： | 杨旭升 冯淑芳 高鑫 |
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| 作者单位： | 1.沈阳军区司令部工科所，沈阳 110162；2.解放军理工大学 工程兵工程学院，南京 210007 |
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| 摘 要： | 系统地分析了内爆炸条件下冲击波在竖井内的传播和反射规律，并基于经典弹性理论，建立了动力平衡方程，推导出了竖井井壁动力响应的计算表达式，得到了竖井侧墙最大径向位移和最大内力分布。计算表明：竖井侧墙最大径向位移出现在竖井中间的某处位置，具体与点源爆炸物高度有关，随着爆炸高度的增加，最大径向位移出现的位置也在向井口方向移动，但是幅值大小有所减小。
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| 关 键 词： | 竖井 内爆炸 冲击波 动力响应 圆柱壳 |
| 收稿时间： | 2010-05-04 |
Dynamic response analysis of veritical shaft under internal explosion |
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| YANG Xu-sheng,FENG Shu-fang,GAO Xin. Dynamic response analysis of veritical shaft under internal explosion[J]. Rock and Soil Mechanics, 2010, 31(Z1): 74-78 |
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| Authors: | YANG Xu-sheng FENG Shu-fang GAO Xin |
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| Affiliation: | 1. Engineering & Research Design Institute of Shenyang Area Headquarters, Shenyang 110162, China; 2. Engineering Institute of PLA University of Science and Technology, Nanjing 210007, China |
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| Abstract: | The propagation and reflection rule of shock wave in vertical shaft under interal explosion is analyzed systematically. Based on the elastic theory, the dynamic equation is built; and the calculation formula of dynamic response of vertical shaft is derived; and the maximal radial displacement and internal force distribution of side wall of vertical shaft are obtained. The calculation results show that the location of the maximal radial displacement of vertical shaft is in the middle of shaft, which is related with the height of explosion; and as the increasing of the explosion height, the location of maximal radial displacement moves to the shaft mouth; but its amplitude become less. |
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| Keywords: | vertical shaft internal explosion shock wave dynamic response cylindrical shell |
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