| 翟亦民,刘斌云,朱凯斌,刘小生.粗粒土动力残余变形计算模型的研究进展[J].中国水利水电科学研究院学报,2018,16(6):555-562 |
| 粗粒土动力残余变形计算模型的研究进展 |
| Research progress on dynamic residual deformation characteristics of coarse-grained soil |
| 投稿时间：2017-05-14 |
| DOI：10.13244/j.cnki.jiwhr.2018.06.006 |
| 中文关键词: 粗粒土 残余变形特性 影响因素 计算模型 |
| 英文关键词:coarse-grained soil residual deformation characteristics influencing factors calculation model |
| 基金项目:国家重点研发计划课题（2016YFC0401601）；国家自然科学基金项目（51509272，51679264）；水利部公益性行业科研专项（201501035）；中国水利水电科学研究院基本科研业务费项目（GE0145B292017） |
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| 中文摘要: |
| 地震残余变形是评价土石坝抗震安全性能的重要指标，作为土石坝筑坝材料的粗粒土的残余变形特性又是抗震安全评价的基础。本文在国内外有关研究进展进行分析和评述的基础上，考察了诸如密度、颗粒级配、固结应力状态、动荷载幅值和排水条件等因素对土石料残余变形特性的影响，指出土的应力历史、颗粒级配、几何形状及母岩强度以及排水条件等影响因素研究资料还很缺乏，还有待开展研究；对目前几个应用较为广泛的残余变形模型以及存在问题进行了分析，并提出了进一步改进的建议。 |
| 英文摘要: |
| The earthquake residual deformation is an important index to evaluating the seismic safety performance of earth-rock dams. According to the researches in the field, the influence of the main factors which plays an important role in the residual deformation characteristics of earth-rock materials was analyzed in this paper, such as density, particle gradation, consolidation stress state, dynamic load amplitude and drainage condition. It is pointed out that there is shortage of the researches of soil stress history,particle gradation,geometrical shape,rock strength and drainage condition,and it is necessary to do further research. The problems of residual deformation models have been analyzed and some suggestions. have been put forward. |
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