| 黄土震陷灾害典型震例的综合研究 |
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| 引用本文： | 张振中,张冬丽,刘红玫.黄土震陷灾害典型震例的综合研究[J].西北地震学报,2005,27(1):36-41,46. |
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| 作者姓名： | 张振中 张冬丽 刘红玫 |
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| 作者单位： | 1. 中国地震局地震预测研究所兰州基地,甘肃,兰州,730000
2. 中国地震局地震预测研究所兰州基地,甘肃,兰州,730000;中国地震局工程力学研究所,黑龙江,哈尔滨,150080 |
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| 基金项目： | 国家自然基金项目(50379049) |
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| 摘 要： | 阐述了1995年甘肃永登5.8级地震时造成的黄土震陷灾害形成条件、震害形态特征、黄土的基本性质及湿陷性和静、动土力学参数与震陷灾害的成因关系。并用震陷量预测计算方法和三维有限元数值模拟方法检验了黄土震陷灾害预测的理论、方法并解释了永登5.8 级地震黄土震陷现象。
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| 关 键 词： | 黄土震陷 灾害 数值分析 验证 |
| 文章编号： | 1000-0844（2005）01-0036-06 |
| 收稿时间： | 2004-06-14 |
| 修稿时间： | 2004-06-14 |
Comprehensive Study on Seismic Subsidence of Loess under Earthquake |
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| ZHANG Zhen-zhong,ZHANG Dong-li and LIU Hong-mei.Comprehensive Study on Seismic Subsidence of Loess under Earthquake[J].Northwestern Seismological Journal,2005,27(1):36-41,46. |
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| Authors: | ZHANG Zhen-zhong ZHANG Dong-li and LIU Hong-mei |
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| Institution: | 1. Lanzhou Base of Institute of Earthquake Prediction, CEA,Lanzhou, 730000, China; 2. Institute of Engineering Mechanics, CEA, Harbin, 150080, China |
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| Abstract: | In this paper, the forming conditions of seismic subsidence of loess, the characteristics of seismic disaster, the basic properties of loess including water collapsibility relating to 1995 Yongdeng M_S5.8 earthquake are discussed. The relationship between the static and dynamic parameters of loess and its seismic subsidence is also revealed. Using calculating method of predicting amount of seismic subsidence and 3D finite element method, proposed theory and method of seismic subsidence is validated and the seismic subsidence in 1995 Yonddeng 5.8 earthquake is explained. |
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| Keywords: | Seismic subsidence of loess Disaster Numerical analysis Validating |
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