Estimate of the effect of 3D shallow subsurface structures on the dynamic soil-structure-interaction

3D 浅层地下结构对动态土壤-结构相互作用的影响的估计

• 批准号: 11305033
• 负责人: WATANABE Hiroyuki
• 金额: $ 21.74万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11305033/
• 关键词: subsurface structures; soil-structure-interaction; seismic response; ground motion; earthquake fault; granular material; 1948年福井地震; 浅層地下構造; 不均質地盤; 元荒川構造帯; 活断層

The effect of 3D subsurface geological structures on the dynamic soil-structure-interaction has been investigated.The findings are as follows.1. By using the newly developed FE-FD Hybrid analysis to simulate response of dam- reservoir- foundation rock system, the radiation damping of the system was evaluated Quantitatively.2. By using the test data and numerical non-linear dynamic analysis, the effects of the separation between pile foundation and surrounding soil on the dynamic stiffness were evaluated3. By using the modified DEM, the micro-deformation mechanism of shear banding process of granular materials, such as sand or gravel, was evaluated.4. The relationship between,tne surface geographical features deformation and uplift of the south Fossa Magna was evaluated.5. By using AR model and NIOM, the feature of wave propagation in the surface ground, such as wave-path and reflection, were investigated from the records of vertical array.6. By using the ground motion database, spatial distribution of ground motions, such as peak ground acceleration, was investigated. And the effect of spatial distribution of the ground motion to the earthquake resistance of the linear lifeline system was evaluated.7. By using DEM, both the location and direction of the deformation in the subsurface ground due to reverse faulting in the base rock layer was evaluated.8. By using dynamic model, the development of slip line in the surface ground layer due to faultingwas investigated. And the formation of strong ground motion by the dynamic rupture process of the fault and subsurface structures was simulated.

研究了三维地下地质结构对土-结构-动力相互作用的影响。采用新发展的有限元-有限差分混合分析方法模拟坝-库-基岩系统的响应，对系统的辐射阻尼进行了定量评价。利用试验数据和数值非线性动力分析方法，分析了桩基与周围土体分离对桩周土动刚度的影响。利用修正后的DEM，对砂石等颗粒材料剪切条带过程的微观变形机理进行了分析。评价了南大窝区地表地貌形变与隆升的关系。利用AR模型和NIOM方法，从垂直阵列的记录出发，研究了地面波的传播特征，如波的传播路径和反射。利用地震动数据库，研究了地震动峰值加速度等地震动的空间分布规律。评价了地震动场的空间分布对线性生命线体系抗震性能的影响。利用数字高程模型对基岩逆断层引起的地下变形的位置和方向进行了评价。利用动力学模型，研究了断层作用下地表滑移线的发展规律。模拟了断层和地下构造的动态破裂过程形成强地震动的过程。

项目成果

BAL Krishna M., WATANABE H.: "Nonlinear dynamic behavior of pile foundation-effect of separation at soil-pile interface-"Proc. of 12th World Conference on Earthquake Engineering. No.494 (2000)

BAL Krishna M.，WATANABE H.：“桩基的非线性动力行为-土-桩界面分离效应-”Proc。

GHAYAMGHAMIAN, M.R., KAWAKAMI, H.: "On-site nonlinear hysteresis curves and dynamic soil properties"Journal of Geotechnical and Geoenvironmental Enineering, ASCE. Vol. 126, No. 6. 543-555 (2000)

GHAYAMGHAMIAN, M.R., KAWAKAMI, H.：“现场非线性磁滞曲线和动态土壤特性”岩土与地球环境工程杂志，ASCE。

DARBAR R..S.: "Effects of perimetrical and vertical joint opening on the seismic response of a concrete arch dam"Proceedings of Earthquake Resistant Engineering Structures. 143-152 (1999)

DARBAR R..S.：“周边和垂直接缝开口对混凝土拱坝地震响应的影响”抗震工程结构论文集。

Haddadi, H.R., Kawakami, H.: "Analysis of in situ seismic data in boreholes by NIOM method"10th International Conference on Soil Dynamics and Earthquake Engineering,Volume of Extended Abstract. 66 (2001)

Haddadi, H.R.、Kawakami, H.：“用 NIOM 方法分析钻孔中的现场地震数据”第十届国际土壤动力学与地震工程会议，扩展摘要卷。

渡辺 啓行: "ペリメータ沿いのジョイントと鉛直ジョイントの開口がコンクリートアーチダムの地震応答に与える影響"ダム工学. 9・2. 79-94 (1999)

Hiroyuki Watanabe：“沿周边和垂直接缝的开口对混凝土拱坝地震响应的影响”《大坝工程》9・2（1999）。