循环载荷对压实雪冰抗压强度的影响研究

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循环载荷对压实雪冰抗压强度的影响研究

洪嘉琳¹^,²(

), 焦凤琪¹, 应咏翰¹, 李金奇¹, 王义超¹, 邵也¹, 范晓鹏²^,³^,⁴(

)

The effect of cyclic loading on the compressive strength of compacted snow

Jialin HONG¹^,²(

), Fengqi JIAO¹, Yonghan YING¹, Jinqi LI¹, Yichao WANG¹, Ye SHAO¹, Xiaopeng FAN²^,³^,⁴(

)

图4. 循环载荷压实雪冰的应力与应变关系
注：实验温度为（-10.0±0.3） ℃，A为应力幅值，f为频率， $ε ˙$ 为应变速率， $σ m$ 为平均应力，N为循环次数

Fig. 4. Stress and strain relationship of compacted snow at different strain rates under cyclic loading ［different strain rate（a）； b-different number of cycles（b）； different stress amplitude（c）］
Experimental temperature is （-10.0±0.3） ℃，A is stress amplitude，f is frequency， $ε ˙$ is strain rate， $σ m$ is the average stress，and N is the number of cycles