Development of seismic structural response analysis method based on the fault-structure system incorporating the inversion analysis

基于断层-构造系统结合反演分析的地震结构响应分析方法的发展

• 批准号: 23686065
• 负责人: ICHIMURA Tsuyoshi
• 金额: $ 16.64万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2013-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23686065/
• 关键词: 地震応答解析; 階層型解析; 逆解析; 断層-構造物系

With aiming to further improve the accuracy of estimate on seismic structural response, we developed a new analysis method which is based on the fault-structure system: the fault mechanism, wave propagation through the crust, amplification near the surface, and soil-structure interaction. To analyze this system at high resolution and accuracy, we developed the forward tool with resolving difficulties: the extremely large computation cost of constructing a three-dimensional numerical model and solving the discretized governing equations. The accuracy of this forward tool is verified by comparing it to a Green's function solution. We demonstrate the potential utility of the method by estimating the seismic response of a large and complex structure in a given earthquake scenario. Further, in order to increase the reliability of this method, we also developed a prototype of the inversion analysis system incorporating the forward tool.

为了进一步提高地震结构响应估计的准确性，我们发展了一种基于断层-结构系统的分析方法：断层机制、波在地壳中的传播、近地表的放大和土-结构的相互作用。为了高分辨率和高精度地分析该系统，我们开发了正演工具，解决了构造三维数值模型和求解离散化控制方程的极大计算量。通过与格林函数解的比较，验证了该正演工具的准确性。通过对一个大型复杂结构在给定地震情景下的地震反应进行估计，验证了该方法的潜在实用性。此外，为了提高该方法的可靠性，我们还开发了一个包含正演工具的反演分析系统原型。

项目成果

Three-dimensional seismic response analysis of underground ramp tunnel structure using massive numerical computation

基于大量数值计算的地下匝道隧道结构三维地震反应分析

• 发表时间: 2011
• 作者: Takemine Yamada;Muneo Hori;Tsuyoshi Ichimura;Hiroshi Dobashi;Yoshihiro Terashima;Naoto Ohbo;Takashi Obara
• 通讯作者: Takashi Obara

DEVELOPMENT OF SIMULATION FRAMEWORK OF SEISMIC RESPONSE ANALYSIS AND HIGH RESOLUTION TSUNAMI SIMULATION

地震响应分析和高分辨率海啸模拟仿真框架开发

• 发表时间: 2012
• 作者: Kohei Fujita;Tsuyoshi Ichimura;Muneo Hori;Lalith Wijerathne and Seizo Tanaka
• 通讯作者: Lalith Wijerathne and Seizo Tanaka

EVALUATION OF SEISMIC PERFORMANCE OF RAMP TUNNEL STRUCTURE DURING LEVEL-2 EARTHQUAKE BY MASSIVE 3-D NUMERICAL COMPUTATION

基于大规模三维数值计算的二级地震中匝道隧道结构抗震性能评价

• 发表时间: 2012
• 作者: Takemine YAMADA;Muneo HORI;Tsuyoshi ICHIMURA;Hiroshi DOBASHI;Naoto OHBO;Mitsumasa OSADA
• 通讯作者: Mitsumasa OSADA

Fast numerical simulation of crustal deformation using a three-dimensional high-fidelity model

• DOI: 10.1093/gji/ggt320
• 发表时间: 2013-12
• 期刊: Geophysical Journal International
• 影响因子: 2.8
• 作者: T. Ichimura;R. Agata;T. Hori;K. Hirahara;M. Hori

大規模数値解析を活用した大型ランプトンネル耐震設計における構造目地の影響検討

使用大规模数值分析检查结构缝对大型匝道隧道抗震设计的影响

• 发表时间: 2012
• 期刊: 土木学会論文集A1(構造・地震工学)
• 作者: 山田 岳峰;市村強;堀宗朗;土橋浩;大保直人
• 通讯作者: 大保直人