| 土石坝的爆破地震安全评估 |
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| 引用本文： | 逄焕东,綦宗宾. 土石坝的爆破地震安全评估[J]. 爆破, 2003, 0(Z1) |
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| 作者姓名： | 逄焕东 綦宗宾 |
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| 作者单位： | 山东科技大学爆破研究所 鞍钢矿业公司建设公司 山东 泰安 辽宁 鞍山 |
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| 摘 要： | 根据坝体建立模型,通过模态分析得到大坝的固有频率。然后将开挖爆破时的现场爆破地震测量数据输入到模型中进行坝体的动力学行为仿真计算,得到了坝体内部的受力情况,在此基础上对土石大坝的安全状况进行了分析和评估。
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| 关 键 词： | 爆破震动 安全评估 有限元法 模态分析 |
Safety Evaluation of Blasting Vibration in a Rock - soil Dam |
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| PANG Huan-dong,QI Zong-bin. Safety Evaluation of Blasting Vibration in a Rock - soil Dam[J]. Blasting, 2003, 0(Z1) |
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| Authors: | PANG Huan-dong QI Zong-bin |
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| Abstract: | It is one of the most important problems to guarantee the safety of dam while blasting nearby. At present this has been evaluated by the limit value of blasting vibration, which is imperfect without considering the characteristic of the structure's response. This paper established a model according the dam and calculated the structure's inherent frequency by mode analysis. Then the vibration data was put into the model to simulate the dynamic behavior of the dam. At last the stress in the dam had been found, and on the basis of these, the safety of the dam was analyzed and estimated. |
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| Keywords: | blasting vibration safety evaluation FEM model analysis |
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