| 粗粒筑坝材料的增量流变模型研究 |
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| 引用本文： | 朱晟,王永明,徐骞.粗粒筑坝材料的增量流变模型研究[J].岩土力学,2011,32(11):3201-3206. |
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| 作者姓名： | 朱晟 王永明 徐骞 |
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| 作者单位： | 1. 河海大学 水文水资源与水利水电工程科学国家重点实验室，南京 210098；2. 河海大学 水工结构研究所，南京 210098 |
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| 摘 要： | 针对全量型流变模型与加载应力路径无关，不能考虑施工或蓄水期在变应力作用下土石坝流变遗传特性的问题，基于继效理论，结合某工程堆石料的三轴流变试验资料，提出了适合于土石坝筑坝材料流变特性分析的7参数增量流变模型；利用试验各级增量荷载作用下的最终体积流变量与对应体积应力之间为近似线性关系，最终剪切流变量与对应的试验广义剪应力之间接近双曲线关系，整理得到其流变体积模量和剪切模量等模型参数；验证分析表明，建议的增量流变模型计算值与试验结果吻合较好，其可应用于实际土石坝的流变研究
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| 关 键 词： | 土石坝 粗粒材料 增量分析 流变 本构模型 |
| 收稿时间： | 2010-03-24 |
Study of incremental rheological model of coarse grained material for embankment |
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| ZHU Sheng,WANG Yong-ming,XU Qian.Study of incremental rheological model of coarse grained material for embankment[J].Rock and Soil Mechanics,2011,32(11):3201-3206. |
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| Authors: | ZHU Sheng WANG Yong-ming XU Qian |
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| Institution: | 1. State Key Laboratory of Hydrology, Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098; China; 2.Institude of Hydraulic Structures, Hohai University, Nanjing 210098, China |
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| Abstract: | Considering that total rheological model is independent of stress path and rheological genetic characteristic of rockfill dam is omitted,a seven-parameter incremental rheological model which is more suitable for the rheological analysis of coarse grained material is achieved based on the theory of hereditary creep.The analysis of normal triaxial rheological test data of some rockfill indicates that: the linear function could be adopted to fit the relationship between ultimate volume rheological deformation ... |
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| Keywords: | soil-rock dam coarse-grained material increment analysis rheology constitutive model |
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