Analyzes on water flow by liquefaction and development of liquefaction sensor

水液化流量分析及液化传感器的研制

• 批准号: 07555145
• 负责人: TAKADA Shiro
• 金额: $ 6.85万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555145/
• 关键词: Liquefaction sensor; Liquefaction; Excess pore water pressure; Optimum arrangement; Neural network; Monitoring; Lateral flow; Response spectra

Present research project started just after the 1995 Hyogoken Nanbu Earthquake. Most of coastal areas of Kobe harbor were liquefied including man-made lands of Port-Island and Rokko Island due to severe ground motions. Effective liquefaction sensors had been developed before the Earthquake, more quick emegency response could have been performed. The present project has been done under the many lessons by the Earthquake. Main research results are summarized as follows :(1) Experiments and theoretical analyzes by FEM could estimate the water volume due to liquefaction.(2) Seismometers turned out to be used for liquefaction sensors by analyzing a lot of seismograms observed at liquefied ground sites during the 1995 Hyogoken Nanbu Earthquake.(3) Micro topography and ground conditions are classified depending on the possibility of liquefaction.(4) FEM analyzes clarified that the amplification of ground motions was enlarged when the liquefaction occurred deep in the ground.(5) Development of sensors is expected for measuring lateral ground flow and subsidence by liquefaction.

目前的研究项目始于1995年的Nanbu地震。由于严重的地面运动，包括港口岛和罗科岛的人造土地，包括人造土地，包括人造土地。在地震之前已经开发了有效的液化传感器，可能已经进行了更快的弹性响应。本项目是在地震的许多教训下完成的。主要的研究结果总结如下：（1）FEM进行的实验和理论分析可以估计由于液化而引起的水量。（2）地震仪被证明用于液化传感器，通过分析许多在1995年的Hyogoken nanbu地震范围内观察到在液化地面上观察到的许多地震图（3）MICTOPRAGY。 （4）FEM分析阐明了当液化发生在地面深处时地面运动的扩增。（5）传感器的开发预计可以通过液化来测量横向地面流量和液化。

项目成果

佐藤忠信: "兵庫県南部地震で発生した強震域での加速度応答スペクトルの推定" 第31回地盤工学研究発表会発表講演集. (1996)

佐藤忠信：《兵库县南部地震强震区加速度反应谱的估计》第31届岩土工程研究会议论文集（1996年）。

上野淳一: "Numerical simulation for up-lifted manhole during liquefaction" Soil Dynamics and Earthquake Engneering VII. 7. 115-123 (1995)

Junichi Ueno：“液化过程中抬升检修孔的数值模拟”土壤动力学与地震工程 VII。7. 115-123 (1995)

E.Zhai, M.Miyajima and M.Kitaura: "Nonlinear Amplification of Vertical Ground Motions in the 1995 Hyogoken Nambu Earthquake, Journal of Geotechnical Engineering" JSCE. No.582. 1-10 (1997)

E.Zhai、M.Miyajima 和 M.Kitaura：“1995 年兵库县南部地震中垂直地面运动的非线性放大，岩土工程杂志”JSCE。

S.Takada, J.Ueno: "Numerical Simulation for up-lifted manhole during liquefaction" Soil Dynamics and Earthquake Engineering. 115-124 (1995)

S.Takada，J.Ueno：“液化过程中提升沙井的数值模拟”土壤动力学和地震工程。

Hiroyuki Kameda et al..DiM SIS: "A Geographic Information System for Disaster Information Management of the Hyogoken-nambu Earthquake" Journal of Natural Disaster Science. Vol.16, No.2. 89-94 (1995)

Hiroyuki Kameda 等人.DiM SIS：“兵库县南部地震灾害信息管理的地理信息系统”自然灾害科学杂志。