| 爆炸地震地面竖向振动的幅值特性 |
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| 引用本文： | 林大超,白春华,等.爆炸地震地面竖向振动的幅值特性[J].北京理工大学学报,2001,21(2):173-176. |
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| 作者姓名： | 林大超 白春华 |
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| 作者单位： | 北京理工大学爆炸灾害预防与控制国家重点实验室!北京100081 |
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| 基金项目： | 国家自然科学基金;19972013; |
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| 摘 要： | 对地面附近爆炸地震引起的地面竖向振动幅值特性进行了实验研究，用药量为2kg的TNT药包分别放置于地面，地上和地下引爆，得以了离开原不同距离处地面的竖向振动速度，分析表明，地面竖向最大加速度和最大速度随距离的衰减均服从负幂函数关系，地面竖向振动速度比加速度具有更长的持续时间。
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| 关 键 词： | 爆炸 爆炸地震效应 地面运动 幅值特征 |
| 文章编号： | 1001-0645(2001)02-0173-04 |
| 修稿时间： | 2000年6月12日 |
Amplitude Characteristics of Vertical Ground Surface Vibration Caused by Explosion Seism |
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| LIN Da chao,BAI Chun hau,ZHANG Qi.Amplitude Characteristics of Vertical Ground Surface Vibration Caused by Explosion Seism[J].Journal of Beijing Institute of Technology(Natural Science Edition),2001,21(2):173-176. |
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| Authors: | LIN Da chao BAI Chun hau ZHANG Qi |
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| Abstract: | Amplitude characteristics of vertical ground surface vibration caused by explosion seism are studied by using the experimental method. The explosive packages charged with 2 kg TNT, laid on the ground surface, above the ground and under the ground respectively, are ignited and the vertical ground velocities generated by their explosion seism are measured at different places from the explosion center. Their analyses show that both the maximum vertical ground accelerations and the maximum velocities follow the relations with negative power of the distance, and there is much longer duration for the velocity than for the acceleration. |
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| Keywords: | blasting explosion seism effect ground motion amplitude characteristic |
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