Fundamental study on the dynamic theory of plasticity which can determine the distribution of acceleration

确定加速度分布的塑性动力学理论基础研究

• 批准号: 14550494
• 负责人: ENOKI Meiketsu
• 金额: $ 2.3万
• 依托单位: National University Corporation Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550494/
• 关键词: Plastic Theory; Earthquake; Acceleration; Earth Pressure; Bearing Capacity; Slope; Foundation; Model Test; 施工; 動的; 擁壁; すべり面; 振動台実験

The investigator established the dynamic theory of plasticity, in which Kotter's equation is combined with the continuity condition for the acceleration found by the investigator during the study on the seismic movement of the slopes. The concrete contents are as follows ;1.The dynamic theory of plasticity was formulated by introducing the continuity condition for the acceleration into the Kotter's equation.2.The investigator developed the Generalized Limit Equilibrium Method(GLEM) into the Dynamic Generalized Limit Equilibrium Method(DGLEM) as the numerical analysis method for the dynamic theory of plasticity.3.The investigator carried out some analyses on the problems of earth pressure, bearing capacity and slope stability using DGLEM.4.The investigator also carried out some model experiments on these problems, and got the limit of the dynamic theory of plasticity by comparisons of experimental results with the analytical ones.5.The investigator showed that the dynamic theory of plasticity can be applied not only to the earthquake problems but also to the execution problems like the dynamic pile driving.6.The investigator also studied the effect of velocity or acceleration on the strength parameters of soil, and concluded that they have no effect on the strength parameters in the problems where excess pore pressure is not generated.

研究者将科特方程与研究者在边坡地震运动研究中发现的加速度连续性条件相结合，建立了塑性动力理论。具体内容如下：1.在Kotter方程中引入加速度的连续性条件，建立了动态​​塑性理论。2.将广义极限平衡法(GLEM)发展为动态广义极限平衡法(DGLEM)，作为动态塑性理论的数值分析方法。3.对土压力、承载力和土压力等问题进行了分析。 4.研究者还针对这些问题进行了一些模型实验，通过实验结果与解析结果的比较，得到了动态塑性理论的极限。5.研究者表明，动态塑性理论不仅可以应用于地震问题，而且可以应用于动力打桩等执行问题。6.研究者还研究了速度或加速度对边坡强度参数的影响。 土，并得出结论，在不产生超孔隙水压力的问题中，它们对强度参数没有影响。

项目成果

Dynamic Theory of Rigid-Plasticity

刚塑性动力学理论

• 发表时间: 2004
• 期刊: Proceedings of the 11th International Conference on Soil Dynamics & Earthquake Engineering
• 作者: M.Enoki;B.X.Luong;N.Okabe;K.Itou
• 通讯作者: K.Itou

榎 明潔: "地震時の斜面災害の特徴-鳥取県西部地震の崩壊地と非崩壊地を調査して-"2000年10月鳥取県西部地震による災害に関する調査研究 平成12年度科学研究費補助金研究成果報告書. 155-164 (2001)

榎木昭吉：《地震时边坡灾害的特征——鸟取县西部地震时塌陷区和非塌陷区的调查》2000年10月鸟取县西部地震灾害研究补助金2000年科学研究成果报告。 155-164（2001）

Y.El Hamdania, M.Enoki: "Slope Response to Earthquake Motion"Proceedings of the Asia 2004 Conference on Earthquake Engineering. Vol.2. 123-134 (2004)

Y.El Hamdania、M.Enoki：“地震运动的坡度响应”2004 年亚洲地震工程会议论文集。

Behavior of Slopes during an Earthquake

地震期间斜坡的行为

• 发表时间: 2002
• 期刊: Proceedings of the 10th International Conference and Field Workshop on Landslides
• 作者: M.Enoki;B.X.Luong;N.Okabe;K.Itou;Meiketsu ENOKI
• 通讯作者: Meiketsu ENOKI

Meiketsu ENOKI: "A new method to calculate the slope motion during an earthquake and its application to the western Tottori earthquake"Proceedings of the international symposium on geotechnical & environmental challenges in mountainous terrain. 90-98 (200

Meiketsu ENOKI：“计算地震期间斜坡运动的新方法及其在鸟取县西部地震中的应用”国际岩土工程研讨会论文集