-160 ℃超低温冻融循环后花岗岩三点弯曲试验研究
吕敦波, 张帆, 张益峰, 杨科, 吕飞, 胡大伟

Experimental study on three-point bending of granite after cryogenic freeze-thaw cycles at -160 ℃
Dunbo LÜ, Fan ZHANG, Yifeng ZHANG, Ke YANG, Fei LÜ, Dawei HU
图9 不同冻融循环次数下花岗岩断裂面微观结构
Fig. 9 Microstructure of granite fracture surface under different freeze-thaw cycles