| 区域地震稳定性的区域地震动力学评价 |
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| 引用本文： | 陈红旗,彭建兵.区域地震稳定性的区域地震动力学评价[J].地球科学与环境学报,2004,26(4):58-62. |
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| 作者姓名： | 陈红旗 彭建兵 |
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| 作者单位： | 1. 成都理工大学,地质灾害防治与地质环境保护国家专业实验室,四川,成都,610059
2. 长安大学,地质工程与测绘工程学院,陕西,西安,710054 |
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| 摘 要： | 运用区域地震动力学理论。分孕震、发震和应震等3个专题层,系统评价了渭河盆地地震稳定性。研究认为渭河盆地拥有多层立交孕震模式,当局部孕震单元满足发震动力学条件时,多以粘滑断错模式发震,同时因边界效应断块发生升降运动,对地震作用的地震响应模式可概化为下托上展。研究表明,区域地震动力学理论更全面深入地刻画了区域地震稳定性,是一种区域地震稳定性评价的有效方法。
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| 关 键 词： | 区域地震 孕震 渭河盆地 地震响应模式 升降运动 断块 动力学条件 动力学理论 地震作用 震动 |
| 文章编号： | 1672-6561(2004)04-0058-05 |
| 修稿时间： | 2003年12月4日 |
Exercising regional seismic dynamics to estimate seismic stability |
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| CHEN Hong-qi,PENG Jian-bing.Exercising regional seismic dynamics to estimate seismic stability[J].Journal of Earth Sciences and Environment,2004,26(4):58-62. |
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| Authors: | CHEN Hong-qi PENG Jian-bing |
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| Institution: | CHEN Hong-qi~1,PENG Jian-bing~2 |
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| Abstract: | It is found that the regional seismic dynamics could describe all sides of regional seismic stability, thus, it should be the most valid method to estimate regional seismic stability. Following the theory of regional seismic aynamics, the regional seismic stability of Weihe basin is estimated from three special topics, that is, earthquake implicit, earthquake generating and earthquake responding. It is found that there is multilayered intercross earthguake implicit mode, and when local earthquake-implicit unit meets the dynamic need of generating earthquake, the earthquake will be generated in the way of stick-slip. Meanwhile, up-and-down movement will happen due to the boundary effect. The earthquake-responding model is thought to be "lower-support and upper -spreading." |
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| Keywords: | engineering geology regional seismic dynamics earthquake basin fault stability |
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