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本文讨论分析了单轴横应变状态下,冻结黄土的松弛规律及影响因素,发现初始应力愈接近瞬时强度或温度愈高,冻土的应力松弛就越强烈。其松弛方程可用公式б(t)=A(θ)ε_0~m(t+1)~(-ε)描述,还介绍了一种确定流变体粘滞系数η的新方法。
In this paper, the relaxation laws and influencing factors of frozen loess under uniaxial transverse strain are discussed and analyzed. It is found that the closer the initial stress is to the instantaneous strength or the higher the temperature, the stronger the stress relaxation of the frozen soil. The relaxation equation can be described by the formula б(t)=A(θ)ε_0~m(t+1)~(-ε). A new method to determine the viscosity coefficient η of a rheological body is also introduced.