-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12 不同冻融次数后岩石断裂韧度对比曲线

Fig. 12 Comparison curves of rock fracture toughness after different freezing and thawing times