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.

研究结果如下1。通过使用新开发的FE-FD混合分析来模拟大坝储层岩石系统的响应，对系统的辐射阻尼进行了定量评估。2。通过使用测试数据和数值非线性动态分析，评估了桩基础与周围土壤之间的分离对动态刚度的影响3。通过使用改良的DEM，评估了颗粒材料（例如沙子或砾石）的剪切带过程的微观变形机理。4。评估了“地面地理特征变形与南窝Magna的隆升之间的关系”之间的关系。5。通过使用AR模型和NIOM，从垂直阵列的记录中研究了地面接地中波传播的特征，例如波路和反射。6。通过使用地面运动数据库，研究了接地运动的空间分布，例如峰值地面加速度。并评估了地面运动对线性生命线系统地震抗性的空间分布的影响7。通过使用DEM，评估了基本岩层层中反向断层，在地下地面上的变形的位置和方向都得到了评估。8。通过使用动态模型，由于研究了故障而导致的地面地面层中滑动线的发展。并模拟了故障和地下结构的动态破裂过程强大的地面运动。

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。

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。

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。

谷山尚: "断層上の動力学的破壊モデルパラメタの推定法に関する研究"応用力学論文集. 3. 541-546 (2000)

Takashi Taniyama：“断层动态破裂模型参数估计方法的研究”应用力学杂志3. 541-546 (2000)。

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）。