| 硬脆岩的非线性粘弹塑性流变模型 |
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| 引用本文： | 熊良宵,杨林德. 硬脆岩的非线性粘弹塑性流变模型[J]. 同济大学学报(自然科学版), 2010, 38(2): 188-193. DOI: 10.3969/j.issn.0253-374x.2010.02.007 |
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| 作者姓名： | 熊良宵 杨林德 |
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| 作者单位： | 同济大学,岩土及地下工程教育部重点实验室,上海,200092;宁波大学,建筑工程与环境学院,浙江,宁波,315211 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了构建适合于硬脆岩的流变模型,通过对Bingham体中的线性粘滞体进行修正,使其粘滞系数转换为时间、应力的衰减函数,将修正的Bingham体与六元件线性粘弹性流变模型组合得到可反映加速蠕变的非线性粘弹塑性流变模型,并采用锦屏一级水电站工程左岸边坡砂板岩的蠕变试验曲线对所建立的非线性粘弹塑性流变模型进行验证.研究结果表明:当采用非线性粘弹塑性流变模型对试验曲线进行拟合时,试验曲线与理论曲线吻合得比较理想,显示了所建模型的正确性和合理性.
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| 关 键 词： | 砂板岩 非线性流变模型 三轴压缩蠕变试验 水电站 |
| 收稿时间： | 2008-11-10 |
| 修稿时间： | 2009-12-21 |
Seven-component viscoelastic rheological model for brittle hard rock |
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| xiongliangxiao and Yang Lin-de. Seven-component viscoelastic rheological model for brittle hard rock[J]. Journal of Tongji University(Natural Science), 2010, 38(2): 188-193. DOI: 10.3969/j.issn.0253-374x.2010.02.007 |
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| Authors: | xiongliangxiao and Yang Lin-de |
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| Affiliation: | XIONG Liangxiao1,2,YANG Linde1,2(1.Key Laboratory of Geotechnical , Underground Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China,2.Faculty of Architectural Civil Engineering , Environment,Ningbo University,Ningbo 315211,China) |
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| Abstract: | In order to build an appropriate rheological model for brittle hard rock,a nonlinear viscous component,whose viscous coefficient was decay function of stress and time,was built to replace the viscous component of Bingham model,and a modified Bingham model was obtained.The nonlinear viscoelasto-plastic rheological model for hard rock was obtained based on the modified Bingham model and six-component linear viscoelastic model.With this new nonlinear viscoelasto-plastic rheological model,the accelerated creep ... |
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| Keywords: | sandstone nonlinear rheological model triaxial compression creep test hydropower station |
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