Development of a constitutive model for soils considering the changing grading due to particle crushing and its application to geotechnical problems

考虑颗粒破碎引起的级配变化的土壤本构模型的开发及其在岩土工程问题中的应用

• 批准号: 20860045
• 负责人: KIKUMOTO Mamoru
• 金额: $ 2.1万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (Start-up)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20860045/
• 关键词: 地盤材料; 構成モデル; 粒子破砕; 限界状態理論; 粒度分布; 弾塑性; 間隙比; 連続体; ダイレイタンシー

Particle breakage occurs in granular materials in various engineering applications such as driving of piles and debris flows, and its influence on mechanical behaviour of soils should be considered properly in a constitutive model for soils. The effect of particle breakage is to increase fine particles and to broaden the grading of particle sizes, and the primary effect of broadening the grading is to change the characteristics of the volumetric response. In the present study, an existing model, in which the critical state line plays a central role as a locus of asymptotic states, has been extended to include the effects of particle breakage.

在打桩、泥石流等工程应用中，颗粒破碎现象普遍存在于颗粒材料中，在土的本构模型中应适当考虑颗粒破碎对土力学行为的影响。颗粒破碎的效果是增加细颗粒和加宽颗粒尺寸的分级，并且加宽分级的主要效果是改变体积响应的特性。在本研究中，一个现有的模型，其中的临界州线发挥了核心作用的轨迹的渐近状态，已被扩展到包括颗粒破碎的影响。

项目成果

粒子破砕の影響を考慮した土の応力ひずみ関係の合理的なモデル化

考虑颗粒破碎影响的土壤应力-应变关系的合理建模

• 发表时间: 2010
• 作者: Koretaka Yuge;Takayuki Ichikawa;Jun Kawai;菊本統
• 通讯作者: 菊本統

PARTICLE CRUSHING AND DEFORMATION BEHAVIOUR

• DOI: 10.3208/sandf.50.547
• 发表时间: 2010-08
• 期刊: Soils and Foundations
• 影响因子: 3.7
• 作者: M. Kikumoto;D. Wood;A. Russell

Particle crushing and deformation behavior

颗粒破碎和变形行为

• 发表时间: 2009
• 期刊: Proc. of the Int. Sym. on Prediction and Simulation Methods for Geohazard Mitigation (未定)(受理済未定)
• 作者: Muir Wood;D.;Kikumoto;M.;Russell;A.
• 通讯作者: A.

Particle crushing and its constitutive modelling

颗粒破碎及其本构模型

• 发表时间: 2009
• 作者: Mamoru Kikumoto

CONSTITUTIVE MODELING OF THE EFFECT OF PARTICLE BREAKAGE

颗粒破碎影响的本构模型

• 发表时间: 2008
• 作者: 西佑介;木本恒暢;Koretaka Yuge;菊本統
• 通讯作者: 菊本統