| 龙滩水电站泥板岩剪切流变力学特性研究 |
| |
| 引用本文： | 杨圣奇,徐卫亚,杨松林.龙滩水电站泥板岩剪切流变力学特性研究[J].岩土力学,2007,28(5):895-902. |
| |
| 作者姓名： | 杨圣奇 徐卫亚 杨松林 |
| |
| 作者单位： | 河海大学,岩土工程研究所,南京,210098 |
| |
| 基金项目： | 国家自然科学基金;中国博士后科学基金;江苏省博士后科学基金 |
| |
| 摘 要： | 利用岩石剪切流变仪，对龙滩水电站泥板岩进行了剪切流变试验，分析了泥板岩剪切位移随时间的变化规律，探讨了不同应力状态下剪切流变速率的变化趋势，讨论了岩石剪切强度随时间的变化规律。将非线性流变元件（NRC模型）与西原模型串联起来，建立了新的能够描述加速流变特性的岩石非线性流变模型。采用泥板岩剪切流变试验曲线，对建立的黏弹塑性剪切流变模型进行了辨识，获得了岩石黏弹塑性剪切流变模型的材料参数，流变模型与试验结果的比较显示所建模型的正确性与合理性。
|
| 关 键 词： | 岩石力学 泥板岩 剪切流变 非线性流变元件(NRC模型) 非线性剪切流变模型 |
| 文章编号： | 1000-7598-（2007）05-0895-08 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005-06-20 |
Investigation on shear rheological mechanical properties of shale in Longtan Hydropower Project |
| |
| YANG Sheng-qi,XU Wei-ya,YANG Song-lin.Investigation on shear rheological mechanical properties of shale in Longtan Hydropower Project[J].Rock and Soil Mechanics,2007,28(5):895-902. |
| |
| Authors: | YANG Sheng-qi XU Wei-ya YANG Song-lin |
| |
| Institution: | Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
| |
| Abstract: | Shear rheology experiments were carried out for the shale in Longtan Hydropower Project by using a servo-controlled shear rheology testing machine.The variation law of shear displacement of shale with the time is analyzed.The variation tendency of shear rheological rates under different stress states is discussed.At the same time,the variation of shear strength of rock with the time is discussed.When the proposed nonlinear rheological component(NRC model) by the author is parallel connected with Kormanura model;so that a new nonlinear rheological model can be gained,which can describe the accelerating rheological properties.Using the shear rheological curves of shale,the proposed nonlinear viscoelastoplastic shear rheological model of rock is identified,which gets the viscoelastoplastic rheological parameters of the shale.The comparison between the rhelogical model and experimental result shows that the proposed rheological model behaves reasonably well. |
| |
| Keywords: | rock mechanics shale shear rheology nonlinear rheological component(NRC model) nonlinear shear rheological model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
