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穿越断裂带线路地表变形震害模式分析与定线策略

ISSN号：1004-2954
期刊名称：铁道标准设计
时间：2011.9.20
页码：12-16
分类：P315.5[天文地球—地震学;天文地球—固体地球物理学;天文地球—地球物理学] TQ541[化学工程—煤化学工程]
作者机构：[1]Department of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China, [2]GNS Science, Lower Hutt, New Zealand
相关基金：National Natural Science Foundation SF of China Under Grant No. 41030742, NBRP of China Under Grant No. 2011CB013605 and the Foundation for Research and Science and Technology of New Zealand Under Grant No. C05X0402Acknowledgement The authors thank Prof T.L. Youd for generously making his database open to the public, which has been used to develop the models in this study. We also thank Chris Massey for his helpful in-house review. This study is supported in part by National Natural Science Foundation of China （Contract No.41030742）, NBRP of China （973 Program 2011CB013605）, and the Foundation for Research and Science and Technology of New Zealand, Contract number C05X0402.
相关项目：川藏交通干线环境灾害演化规律与工程风险

关键词：区域地震活动, 模型预测, 伸展, 侧向位移, 衰减关系, 地面震动, 位移反应谱, 强震动, lateral spreading, liquefaction, strong-motion attenuation

中文摘要：

一个修订实验模型为作为两回答的一个函数预言导致液化的侧面的传播排水量(LD ) 被开发了光谱从 Youds LD 数据从强壮运动的变细模型和 geotechnical 参数导出的加速设定(Youd 网站) 。这个修订模型与张和赵的模型不同，它为预言侧面的传播克服了更早的模型的一些缺点并且首先在日本和西方的美国被使用如果摇晃扎根，修订模型能潜在地被使用在任何地方(以5%抑制加速或排水量反应系列)能用本地强壮运动的变细关系被估计。修订模特儿从日本和西方的美国用数据被检查并且适用于土耳其和新西兰，在扎根的摇晃为每个区域用适当强壮运动的变细关系被估计的地方。修订模型的精确性被把它的预言的侧面的排水量与那些在实际地震测量了作比较评估。结果证明修订模型能在侧面的传播排水量上说明本地 seismicity 的效果并且与存在预言模型一起是可比较的。

英文摘要：

A revised empirical model has been developed for predicting liquefaction-induced lateral spreading displacement （LD） as a function of both response spectral acceleration derived from strong-motion attenuation models and geotechnical parameters from Youd＇s LD data set （Youd website）. This revised model is different from the model of Zhang and Zhao, which overcame some drawbacks of earlier models for predicting lateral spreading and was primarily used in Japan and the western U.S. The revised model can potentially be applied anywhere if ground shaking （in terms of 5% damped acceleration or displacement response spectra） can be estimated using local strong-motion attenuation relationships. The revised model is examined using data from Japan and the western U.S. and applied to Turkey and New Zealand, where the ground shaking is estimated using appropriate strong-motion attenuation relationships for each region. The accuracy of the revised model is evaluated by comparing its predicted lateral displacements with those measured in actual earthquakes. The results show that the revised model can account for the effects of local seismicity on lateral spreading displacements and is comparable with existing prediction models.

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