DEVELOPMENT OF EVALUATION METHOD FOR LIQUEFACTION OF GROUND CONSIDERING DUCTILE NATURE
考虑延性性质的地基液化评价方法的开发
基本信息
- 批准号:10650476
- 负责人:
- 金额:$ 0.64万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1998
- 资助国家:日本
- 起止时间:1998 至 2000
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Current prediction method of liquefaction issues the alternative conclusion of whether there is no liquefaction damage. However, according to the actual liquefaction damage such as the Great Hanshin Earthquake, it is clear that the damage level continuously changed. This is because load level of the earthquake motion as an external force and the toughness of the ground continuously change. Especially, there is no technique that quantitatively evaluates it on the toughness of the soil in present state. Therefore, we can not distinguish the fracture event between of dense sandy soil in which the rigidity recovers and of the loose sand without ductile nature. The purpose of this study is to develop the technique that can quantitatively evaluate ductile nature of the soil.New strain controlled-test method that could quantitatively evaluate ductility of the soil was proposed in the 1998 fiscal year. Based on this proposed technique, the applicability was examined for various soil composed of sand content and fine-grain fraction except for gravel. The experimental result was studied in plastic strain energy, and it showed becoming an index which shows ductility index of the soil.The evaluation technique of earthquake intensity as an external force in proportion to the strength index proposed in the 1999 fiscal year. That is to say, the prediction procedure of energy amount used for the plastication of the ground was proposed, when some earthquake motion input it.The research result was presented in the 2000 fiscal year. And the result of this study was published in academic journal and international conference of domestic and overseas. In addition, the research report was printed as a grant-in-aids for Scientific Research report, and it was distributed to the researcher of the same field.
目前的液化预测方法给出了是否没有液化损害的替代结论。但是,从阪神大地震等液化灾害的实际情况来看,液化灾害的等级是不断变化的。这是因为地震运动的荷载水平作为外力而使地面的韧性不断变化。特别是目前还没有一种技术可以定量地评价土的现状韧性。因此,我们不能区分刚性恢复的致密砂土和无延性的松散砂土的断裂事件。本研究的目的是发展定量评价土壤延性的技术。1998会计年度提出了一种定量评价土壤延性的应变控制试验新方法。在此基础上,对除砾石外各种含砂率和细粒率组成的土壤进行了适用性试验。用塑性应变能对试验结果进行了研究,结果表明,塑性应变能是反映土体延性指标的指标。1999财政年度提出的地震烈度作为外力与强度指标成比例的评价方法。也就是说,提出了当某地震运动输入时,用于地基塑化的能量的预测程序。研究成果已于2000财政年度发表。研究结果在国内外学术期刊及国际会议上发表。此外,该研究报告作为科学研究资助报告印刷,并分发给同一领域的研究人员。
项目成果
期刊论文数量(31)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
風間基樹,加賀谷俊和,柳沢栄司: "まさ土の液状化抵抗の特殊性"土木学会論文集. No.645/III-50. 153-166 (2000)
Motoki Kazama、Toshikazu Kagaya、Eiji Yanagisawa:“Masa 土的抗液化特性”,日本土木工程学会第 645/III-50 号(2000 年)。
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- 影响因子:0
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- 通讯作者:
Kazama M., Yamaguchi A.and Yanagisawa E.: "Liquefaction resistance from a ductility viewpoint"Soils and Foundations. Vol.40, No.6. 47-60 (2000)
Kazama M.、Yamaguchi A. 和 Yanagisawa E.:“从延展性角度看抗液化性”土壤和地基。
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- 影响因子:0
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風間基樹,柳沢栄司,加賀谷俊和: "靭性を考慮した土の液状化抵抗評価法の提案"液状化メカニズム・予測法と設計法に関するシンポジウム発表論文集. 503-510 (1999)
Motoki Kazama、Eiji Yanagisawa、Toshikazu Kagaya:“考虑韧性的土壤抗液化评估方法的提议”液化机制、预测方法和设计方法研讨会论文集503-510(1999)。
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- 影响因子:0
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森本大志,岡田直仁,風間基樹: "圧密履歴を受けた粒状集合体の個別要素法による弾性エネルギーの評価"第55回土木学会年次学術講演会. (CD-ROM 2p.). (2000)
Taishi Morimoto、Naohito Okada、Motoki Kazama:“用离散元法评估固结历史下的粒状骨料的弹性能”,第 55 届日本土木工程师学会学术年会(CD-ROM 2p.)。
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- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Kazama M.and Yanagiawa E.: "Strong motion intensity from liquefaction viewpoint"Proceedings of 12th World Confer ence on Earthquake Engineering. (CD-ROM). 8 (2000)
Kazama M.和Yanagiawa E.:“从液化角度看强运动强度”第12届世界地震工程学会论文集。
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KAZAMA Motoki其他文献
Variation and Reliability of Undrained Triaxial Shear Test using In-situ Soil Specimens
使用原位土样进行不排水三轴剪切试验的变化和可靠性
- DOI:
10.5610/jaee.19.5_77 - 发表时间:
2019 - 期刊:
- 影响因子:0
- 作者:
YAMAGUCHI Teruhiro;KAMURA Akiyoshi;KIM Jongkwan;KAZAMA Motoki - 通讯作者:
KAZAMA Motoki
三軸繰返し荷重作用時の砂や各種改良しらす土の挙動と基準化累積損失エネルギーによる評価
三轴循环荷载下砂土及各类改良银鱼土的行为及归一化累积损失能评价
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
MIDORIKAWA Yusuke;UNNO Toshiyasu;KAMURA Akiyoshi;SENTO Noriaki;KAZAMA Motoki;緑川雄介,海野寿康,加村晃良,仙頭紀明,風間基樹;清原雄康 - 通讯作者:
清原雄康
PHYSICAL AND MECHANICAL PROPERTIES OF VOLCANIC SOILS DAMAGED IN THE 2018 HOKKAIDO IBURI EASTERN EARTHQUAKE
2018 年北海道胆振东部地震中受损火山土的物理和力学特性
- DOI:
10.2208/jscejseee.76.4_i_741 - 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
MIDORIKAWA Yusuke;UNNO Toshiyasu;KAMURA Akiyoshi;SENTO Noriaki;KAZAMA Motoki - 通讯作者:
KAZAMA Motoki
KAZAMA Motoki的其他文献
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{{ truncateString('KAZAMA Motoki', 18)}}的其他基金
Evaluation of deformation and fluidization properties of liquefied soils - Development to the second stage liquefaction research
液化土变形与流化特性评价——向第二阶段液化研究进展
- 批准号:
23246086 - 财政年份:2011
- 资助金额:
$ 0.64万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Study and prediction method development of the progressive failure of embankment and gentle slope caused by excess pore water pressure propagation
超孔隙水压力传播引起的路堤及缓坡渐进破坏研究及预测方法开发
- 批准号:
16206048 - 财政年份:2004
- 资助金额:
$ 0.64万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
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