冻结重塑黏土损伤特性及影响因素分析

1max一般介于0.6～0.8之间；②温度对冻结重塑黏土损伤特性影响较明显,降低温度可以明显强化冻土结构,减少冻土结构的损伤及延缓冻土损伤的发展,而含水率和围压对其影响不明显；③割线模量可以较好地表征冻土在加载过程中裂缝的发展特点和结构的损伤演化规律,损伤初始点轴向应变和割线模量与温度之间存在较好的线性增长关系,且冻结重塑黏土损伤应变门槛值]]>

Damage properties and influence factors of remolded frozen clay

1max generally ranges from 0.6 to 0.8; (2) the freezing temperature has obvious effect on the damage properties of the remolded frozen clay, and lowering the temperature may strengthen the structure obviously so as to reduce its structural damage and to delay its damage evolution; and (3) the secant modulus can well represent the development characteristics of cracks and the damage evolution behaviors of the remolded frozen clay during the loading procedure, and the relationship between the axial strain and the secant modulus of the damage threshold and temperature rises linearly, the damage strain threshold ]]>