| 水压与外力共同作用下的岩石蠕变模型 |
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| 引用本文： | 吴秀仪,刘长武,沈荣喜,杨旭.水压与外力共同作用下的岩石蠕变模型[J].西南交通大学学报,2007,42(6):720-725. |
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| 作者姓名： | 吴秀仪 刘长武 沈荣喜 杨旭 |
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| 作者单位： | 四川大学水利水电学院,四川,成都,610065 |
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| 基金项目： | 国家自然科学基金资助项目(50574064) |
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| 摘 要： | 为了更好地描述岩石蠕变的全过程以及在水压与外力共同作用下的岩石蠕变规律,对描述岩石蠕变特性的Burgers模型进行了修正.把非线形黏滞阻尼器与塑性元件并联,然后串联在Burgers模型中,从而得到修正的Burgers模型.通过分析和推导,建立了水压与外力共同作用下岩石蠕变全过程的本构方程,并给出了求解模型参数的方法.
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| 关 键 词： | 岩石蠕变 水压 Burgers模型 本构方程 黏滞系数 |
| 文章编号： | 0258-2724（2007）06-0720-06 |
| 收稿时间： | 2007-04-10 |
| 修稿时间： | 2007年4月10日 |
Creep Model of Rock Subjected to Water Pressure and External Force |
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| WU Xiuyi,LIU Changwu,SHEN Rongxi,YANG Xu.Creep Model of Rock Subjected to Water Pressure and External Force[J].Journal of Southwest Jiaotong University,2007,42(6):720-725. |
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| Authors: | WU Xiuyi LIU Changwu SHEN Rongxi YANG Xu |
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| Abstract: | In order to describe the whole process of rock creep and the creep feature of rock subjected to water pressure and external force more exactly,the Burgers model describing the creep feature of rock was modified.A modified Burgers model was set up through paralleling a non-linear adhesion damper and a plastic element,and then connecting in series them and the Burgers model.By analyzing and deducing,a constitutive equation to describe the whole process of rock creep subjected to water pressure and external force was established,and the method to determine parameters in the constitutive equation was given. |
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| Keywords: | rock creep water pressure Burgers model constitutive equation adhesion coefficient |
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