斜入射地震波在土体中产生的动应力路径及试验模拟

黄博; 凌道盛; 丁浩; 汪清静; 袁江宏

斜入射地震波在土体中产生的动应力路径及试验模拟 English Version

黄博^1,2,
凌道盛^1,2,
丁浩^1,2,
汪清静^1,2,
袁江宏^1,2

1. 浙江大学岩土工程研究所，浙江杭州 310058; 2. 浙江大学软弱土与环境土工教育部重点实验室，浙江杭州 310058

基金项目: 地震行业科研专项项目（200808022）；国家自然科学基金项目（50708095，51178427）；国家重点基础研究发展计划项目（2007CB714203）

详细信息

作者简介:
黄博(1973– )，女，副教授，主要从事土动力学和实验土力学研究和教学。E-mail: cehuangbo@zju.edu.cn

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- 收稿日期: 2012-02-01
- 发布日期: 2013-03-06

Seismic stress path induced by obliquely incident waves and its simulation

1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China

摘要

摘要: 针对地震波传播时并非垂直的情况，基于半无限弹性空间地震波的传播理论，对地震波进行简化，考虑斜入射时地震波在自由界面处的反射，推导了地震波斜入射时地震应力的计算公式，并通过计算实例分析了不同入射角度下，P波、SV波单独斜入射时在土单元体中所产生的地震应力以及所形成的应力路径。结果表明：当P波、SV波单独斜入射时，土单元体在平面应力差-剪应力平面上形成的应力路径均为一个倾斜椭圆，斜椭圆的倾角和长短轴之比随地震波入射角度、频率、波速等影响因素在一定范围内变化。文中还针对如何实现倾斜椭圆形应力路径的室内试验模拟进行了初步探讨分析。
- 弹性半空间 /
- P波 /
- SV波 /
- 斜入射 /
- 应力路径
Abstract:
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- elastic half-space /
- P-wave /
- SV-wave /
- oblique incidence /
- stress path

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参考文献(22)

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斜入射地震波在土体中产生的动应力路径及试验模拟 English Version

作者简介: 黄 博(1973– )，女，副教授，主要从事土动力学和实验土力学研究和教学。E-mail: cehuangbo@zju.edu.cn

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Seismic stress path induced by obliquely incident waves and its simulation

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作者简介:
黄博(1973– )，女，副教授，主要从事土动力学和实验土力学研究和教学。E-mail: cehuangbo@zju.edu.cn