• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Pure and Applied Geophysics >Nonlinear Soil Behavior at the Kashiwazaki-Kariwa Nuclear Power Plant During the Niigata Chuetsu-Oki Earthquake (July, 16, 2007)
【24h】

Nonlinear Soil Behavior at the Kashiwazaki-Kariwa Nuclear Power Plant During the Niigata Chuetsu-Oki Earthquake (July, 16, 2007)

机译：新泻县立冲木大地震期间柏崎-羽核电站的非线性土壤行为（2007年7月16日）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Records of the Niigata Chuetsu-Oki earthquake (July, 16, 2007, M w = 6.6, depth ~17 km) and its aftershocks from seismic vertical arrays deployed at the territory of the Kashiwazaki-Kariwa nuclear power plant (~15 km from the fault) are used to study the soil behavior down to ~250 m during strong ground motion. Nonlinear models of soil behavior during the main shock and six aftershocks are constructed, and stresses and strains induced by the strong motion in the soil layers at various depths are estimated. The data are processed using the method developed by Pavlenko and Irikura (Bull Seismol Soc Am 96(6): 2131–2145, 2003) and previously applied for studying the soil behavior in near-fault zones during the 1995 Kobe and 2000 Tottori earthquakes. A rather good agreement between the recorded and simulated acceleration time histories testifies to the validity of the obtained vertical distributions of stresses and strains in soil layers. In the upper, softer layers (~45 m) at the territory of the plant, the shear moduli were reduced by ~30–35% during the main shock and by ~1.5–3% during the aftershocks. The constructed models of soil behavior can be used in scenario earthquake shaking maps of Japan where, based on source modeling parameters, the level of strong motion can be evaluated for the territory of the power plant in future earthquakes with various magnitudes and fault planes. Using methods of stochastic finite-fault modeling of ground motions from the Chuetsu-Oki earthquake, we estimated input motion to the soil layers during the main shock and found that it differs from the imposed motion (recorded by the deepest sensor of the vertical array) by slightly decreased (by a factor of ~1.2) low-frequency (f 10 Hz) spectral components.
机译：新泻县中冲冲地震（2007年7月16日，M w = 6.6，深度约17 km）及其在柏柏崎-ari轮核电站（〜距断层15公里处）用于研究强地面运动过程中低至〜250 m的土壤行为。建立了主震和六次余震过程中土壤行为的非线性模型，并估算了不同深度土壤层中强运动引起的应力和应变。数据使用Pavlenko和Irikura开发的方法进行处理（Bull Seismol Soc Am 96（6）：2131-2145，2003年），以前曾用于研究1995年神户地震和2000年鸟取地震的近断层带土壤行为。记录的和模拟的加速时间历史之间相当好的一致性证明了所获得的土层应力和应变垂直分布的有效性。在厂区较上层的较软层（约45 m）中，主震期间的剪切模量降低了约30-35％，余震期间的剪切模量降低了约1.5-3％。构造的土壤行为模型可以用于日本的情景地震地图，其中可以基于震源模型参数，评估未来地震中具有各种震级和断层平面的发电厂区域的强运动水平。使用中越冲木地震的随机随机断层建模方法，我们估算了主震过程中土层的输入运动，发现它与强加运动不同（由垂直阵列的最深传感器记录）频率（f <10 Hz）的低频频谱分量略有降低（约1.2倍）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号