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本文采用陈宗基教授建议的方法对构造泥化夹层进行了恒温、饱水剪切蠕变试验,并将所得蠕变曲线划分为A、B两种类型,通过对大量试验结果进行线性变换,得出蠕变各阶段的经验方程。它们在初始蠕变阶段为幕函数及负指数函数形式;等速蠕变阶段为线性函数;加速蠕变阶段为复杂的对数函数形式,为了探讨这些方程的物理涵义,文中又将经验方程进一步抽象为蠕变模型,模型中采用一变η的牛顿筒来描述加速蠕变阶段,并给出了计算模型中各参数的程序框图。文中还研究了泥化夹层天然微结构及其在各蠕变阶段的变化,并通过这些研究对蠕变的机制作了初步分析。
In this paper, a constant-temperature and saturated shear creep test was performed on the structure-mudified interlayer using the method proposed by Prof. Chen Zongji, and the resulting creep curves were divided into two types, A and B. Through the linear transformation of a large number of test results, The empirical equations for various stages of creep. They are in the form of curtain functions and negative exponential functions in the initial creep stage; linear functions in the isokinetic creep stage; and the complex logarithm function forms in the accelerated creep stage. In order to explore the physical meaning of these equations, the empirical equations are further developed in this paper. The abstraction is a creep model. A Newtonian cylinder with a variable η is used in the model to describe the accelerated creep stage, and a block diagram of each parameter in the calculation model is given. In the paper, the natural micro-structures of argillized interlayers and their changes in various creep stages are also studied. Through these studies, the mechanism of creep is analyzed.