|
|||||
|
|
| 定量分析紫坪铺水库蓄水与汶川地震发生的关系 | |
| 引用本文： | 罗钧,赵翠萍,汪荣江.定量分析紫坪铺水库蓄水与汶川地震发生的关系[J].地震,2018,38(2):51-61. |
| 作者姓名： | 罗钧 赵翠萍 汪荣江 |
| 作者单位： | 1.中国地震局地震预测研究所, 北京 100036; 2.德国波茨坦地学研究中心, 德国 波茨坦 D-14473 |
| 基金项目： | 中国地震局地震预测研究基本科研业务专项(2015IES010305), 国家自然科学基金项目(41774054)资助 |
| 摘 要： | 为分析紫坪铺水库蓄水与2008年汶川MS8.0地震的关系, 通过求解二维孔弹耦合层状介质下解析解形式的扩散孔隙压, 获取了汶川地震发生前地震震源处的扩散孔隙压值。 在此基础上, 开展了汶川地震发生前, 地震震源处以及北川—映秀断裂带断层面上应力变化量的计算。 结果表明, 汶川地震发生前, 地震震源处的库仑应力变化量值较小, 为-0.001 MPa, 表明蓄水对汶川地震的发生具有一定程度的抑制作用。 |
| 关 键 词： | 紫坪铺水库 2008年汶川MS8.0地震 孔弹耦合介质 扩散孔隙压 |
| 收稿时间： | 2018-01-05 |
Quantitative Analysis of the Relationship between the Zipingpu Reservoir Impoundment and the 2008 Wenchuan MS8.0 Earthquake |
|
| LUO Jun,ZHAO Cui-ping,WANG Rong-jiang.Quantitative Analysis of the Relationship between the Zipingpu Reservoir Impoundment and the 2008 Wenchuan MS8.0 Earthquake[J].Earthquake,2018,38(2):51-61. | |
| Authors: | LUO Jun ZHAO Cui-ping WANG Rong-jiang |
| Institution: | 1.Institute of Earthquake Science, CEA, Beijing 100036, China; 2.GeoForschungsentrum Potsdam GFZ, Telegrafrnberg, D-14473 Potsdam, Germany |
| Abstract: | In order to analyze the relationship between the impoundment of the Zipingpu Reservoir and occurrence of the 2008 Wenchuan MS8.0 earthquake, the diffused pore pressure on the hypocentral zone of the Wenchuan earthquake is gotten by the quantitative calculation in the pore-elastic layer medium. Based on it, stress variances before the Wenchuan earthquake on the hypocentral zone are also simulated. The results show that Coulomb stress on the hypocentral zone is about -0.001 MPa, indicating a very low relation between the reservoir impoundment and the earthquake occurrence. |
| Keywords: | The 2008 Wenchuan Earthquake Zipingpu Reservoir Pore-elastic Medium |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《地震》浏览原始摘要信息 | |
| 点击此处可从《地震》下载免费的PDF全文 | |