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中文摘要：
针对五里堆2#滑坡内的巴东组T2 2b紫红色泥岩,进行室内岩石剪切流变试验,对泥岩在剪切变形过程中的流变特征进行深入研究。选用五元件黏弹性剪切流变模型建立流变方程,用Origin工具函数Exp Assoc拟合泥岩具有黏弹性特征的试验曲线,确定泥岩的黏弹性剪切流变参数。同时,利用流变参数对泥岩的流变曲线进行深入分析。基于泥岩的剪切流变试验,确定泥岩的长期强度参数。与泥岩的瞬时强度参数相比,长期强度参数有所降低。因此,用长期强度参数对滑坡进行设计更能保证工程的安全性。
英文摘要：
In view of the Tb fuchsia mudstone in the No.2 landslide of Wulidui, the laboratory shear rheological test is carried out to research rheological characteristics in the mass shear process. Five-component viscoelastic shear rheological model is selected to establish shear rheological equation, and Origin tool function Exp Assoc is used to fit the fuchsia mudstone test curves which have viscoelastic property; then the viscoelastic theological parameters are determined. At the same time, the parameters are used to analyze the rheological curves deeply. Based on the shear rheological experiment of fuchsia mudstone, the long-term shear strength parameters are determined. Compared with the instant shear strength parameters, the long-term shear strength parameters have been reduced to some extent. Therefore, using the long-term shear strength parameters to design landslide project is more reliable to guarantee the project security.
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