Study on dynamic behavior of pile under seismic motion

地震作用下桩的动力性能研究

• 批准号: 11650516
• 负责人: TAMANO Tomio
• 金额: $ 2.11万
• 依托单位: Osaka Sangyo University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650516/
• 关键词: Bearing capacity; Model test; Earthquake; Progressive failure; Cast-in-place pile; Enlarged bottom pile; 進行生破壊; 杭; 耐震設計; 埋立地盤; モデル実験; 数値解析; 下水道構造物; 阪神・淡路大震災

In this study, it intends to clarify that what kind of seismic motion destroys piles in the ground. In addition, both static and seismic design method are examined by using the experimental results and analytical approach through the 2year's research, 1999-2000.The research item and abstract are as follows :Bearing capacity generation of pile : A two dimensional apparatus was used with aluminum rod mass simulating the non-cohesive ground. The tests were performed with lose and dense condition of the ground. Effect of pile width and length of embedment were studied. Test results bring out a comprehensive observation of the progressive failure mechanism.Seismic damage seismic behavior of piles and retaining walls : The seismic damage of the piles and the retaining walls at Kobe earthquake is collected and is arranged of the case variously.Production of impact apparatus, gives over 1G impact vertical motion : By production of this apparatus, mortar test-pieces shock both compression and tension experiment possible. Now the basic experimental research is tackled for the elucidation of fracture mechanism by up-down impulsive force.

在这项研究中，旨在澄清什么样的地震运动会破坏地下的桩。此外，通过1999-2000年两年的研究，利用实验结果和分析方法对静力和抗震设计方法进行了检验。研究项目和摘要如下： 桩的承载力生成：使用二维装置模拟非粘性地面的铝棒质量。测试是在地面松散且致密的条件下进行的。研究了桩宽和埋置长度的影响。试验结果对渐进破坏机制进行了全面的观察。桩和挡土墙的地震损伤地震行为：收集了神户地震中桩和挡土墙的地震损伤并进行了各种案例的整理。冲击装置的生产，产生超过1G的冲击垂直运动：通过生产该装置，砂浆试件可以进行压缩和拉伸冲击实验。目前正在开展阐明上下冲击力断裂机理的基础实验研究。

项目成果

玉野富雄: "拡底杭削孔時の拡底形状と地盤挙動"日本材料学会・第4回地盤改良シンポジウム論文集. Vol.1. 55-62 (2000)

Tomio Tamano：“底部膨胀桩钻探期间的底部膨胀形状和地面行为”第四届地面改进研讨会论文集，日本材料学会卷 1. 55-62 (2000)。

古川正明 玉野富雄 他: "The Study of Retaining Structures under Seismic Motions"Proc.of Int.Symp.on Geotechnical Aspects of Underground Construction. Vol.1. 601-606 (1999)

Masaaki Furukawa、Tomio Tamano 等人：“地震运动下的挡土结构研究”Proc.of Int.Symp.on Geotechnical Aspects of Underground Construction Vol.1 (1999)。

玉野富雄: "Earth Retaining wall under Seismic Motion of Kobe Earthquake"Proc.Int Symp Geotechnical Aspects of Underground Construction in Soft Clay ISSMFE TC-28. Vol.1. 631-634 (1999)

Tomio Tamano：“神户地震地震作用下的挡土墙”Proc.Int Symp 软粘土地下施工岩土工程问题 ISSMFE TC-28 第 631-634 卷（1999 年）。

金岡正信: "Model Tests of Borehole Excavation for Enlarged Bottom Cast-in place Pile"Proc.10^ Int.Offshore and polar Engineering Conference. Vol.2. 417-423 (2000)

Masanobu Kanaoka：“扩大底部现浇桩的钻孔开挖模型试验”Proc.10^<th> Int.Offshore and Polar Engineering Conference Vol.2 (2000)。

玉野富雄: "Progressive Failure Mechanism of Axial Loaded Non-displacement Pile"Proc.Int.Symp.on Recent Development of Ground Improvement (in printing). Vol.1. (2001)

Tomio Tamano：“轴向加载非位移桩的渐进破坏机制”Proc.Int.Symp.on 地面改良的最新发展（印刷中）（2001 年）。