Development of a high damping and high resistance design of compound foundation accompanied by soil improvement

土壤改良复合地基高阻尼高阻设计开发

• 批准号: 17360214
• 负责人: TAKEMIYA Hirokazu
• 金额: $ 10.18万
• 依托单位: OKYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360214/
• 关键词: High damping foundation; High resistance foundation; Honeycomb-cell WIB; Tire shreds fill-in; Vibration mitigation; Wave impediment; Field test; Computer simulation; 性能耐震設計; 複合基礎; 非線形地震応答解析; 地盤-基礎の動的相互作用; プレキャスト版WIB; 廃タイヤシュレッド; 高減衰材

In this study, proposed is a foundation strengthening design, accompanied by the nearby soil improvement against earthquake damages. This innovative design method of pile foundations increases the horizontal resistance by the stiffened front soil and the high damped mechanism by its compound configuration. The details are the procedure that encompasses the foundation pile by honeycomb shaped soil improvement with scrapped tire shreds fill-in. Additional high damping effect is expected by using high viscous asphalt mixture with tire shreds.The computer simulation was carried out from linear analysis for traffic-induced vibration to nonlinear analyses in severe earthquake motions. In the latter situation, the proposed design lead to a partial damage allowed concept to escape from the total damage by energy absorption.The vibration mitigation effect by honeycomb shaped WIB was investigated by field test. The WIB cell wall is made of a pre-cast concrete. The tire shreds were filled inside cells. The source loadings are a shaker driving, a guided hamper hitting, etc. The field test proved that the honeycomb shaped WIB is very effective for vibration mitigation, more than several dB reduction, compared to conventional vibration mitigation procedures.

在这项研究中，提出的是基础加强设计，并伴随着附近的土壤改善对地震损害。这种创新的桩基础设计方法可通过僵硬的前土壤和高阻尼机构的复合构型提高了水平电阻。细节是通过蜂窝状的土壤改善的粉底堆积的过程，并用废弃的轮胎丝填充。通过使用轮胎切碎的高粘性沥青混合物，可以预期额外的高阻尼效果。计算机模拟是从线性分析进行交通诱导的振动到严重地震运动中的非线性分析的。在后一种情况下，拟议的设计导致部分损害允许概念通过能量吸收从总损害中摆脱。蜂窝状WIB的振动缓解效果通过现场测试研究了。 WIB细胞壁是由预铸造混凝土制成的。轮胎丝在细胞内部填充。源负荷是振动板驾驶，引导式篮球击球等。与常规的缓解程序相比，蜂窝状的WIB对振动缓解非常有效，多数db降低了。

项目成果

Buried wave impeding barrier (WIB) against transmission of traffic induced vibrations

埋地波阻屏障 (WIB) 防止交通引起的振动传播

• 发表时间: 2006
• 期刊: Proc. the 41st Annual Conference, Japanese Geotechnical Society
• 作者: Takemiya;H.;Shimabuku;J.
• 通讯作者: J.

軟弱地盤上の新幹線高架軌道から発生・伝播する地盤震動への波動論的考察

软土地基上新干线高架轨道产生和传播的地面振动的波动理论考虑

• 发表时间: 2006
• 期刊: 土木学会年次学術講演回講演概要 第61回
• 作者: 竹宮宏和;島袋ホルヘ
• 通讯作者: 島袋ホルヘ

Development of a precast- concrete-tire shred combed WIB for vibration mitigation

开发用于减轻振动的预制混凝土轮胎碎片梳理 WIB

• 发表时间: 2006
• 期刊: Proc. the 41st Annual Conference, Japanese Geotechnical Society
• 作者: Takemiya;H. et al.
• 通讯作者: H. et al.

Soil Dynamics and Earthquake Engineering

• DOI: 10.1016/0141-1195(86)90051-3
• 发表时间: 2008
• 作者: H. Cao;M. Friswell

Prediction of train/traffic induced ground vibrations and mitigation by WIB, Environmental Vibrations, 2005.

WIB 对火车/交通引起的地面振动的预测和缓解，《环境振动》，2005 年。

• 发表时间: 2005
• 期刊: Proceedings of ISEV2005
• 作者: Takemiya;H.
• 通讯作者: H.