多年冻土区钻孔灌注桩基础早期热稳定性研究现状与展望
侯鑫, 杨斌, 陈继, 赵静毅, 芮鹏飞

The status and review of early thermal stability of cast-in-place pile foundations in permafrost regions
Xin HOU, Bin YANG, Ji CHEN, Jingyi ZHAO, Pengfei RUI
表1 不同土层月平均最高温度对应的混凝土桩侧表面与冻土的切向冻结强度74
Table 1 Tangential freezing strength between the pile surface and frozen soil at the monthly average maximum temperature of different frozen soil layers74
与混凝土表面接触的土切向冻结强度/kPa
-0.5 ℃-1.0 ℃-1.5 ℃-2.0 ℃-2.5 ℃-3.0 ℃-4.0 ℃
黏性土6090120150180220280
砂土80130170210250290380
碎石土70110150190230270350