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制备了四点弯曲试样并制作了相应的四点弯曲实验装置,进行冻土断裂韧度K_(ⅡC)的测试研究,测定了冻土K_(ⅡC)的值,获得了K_(ⅡC)与含水量、温度及加载速率的关系。
A four - point bending test specimen was prepared and the corresponding four - point bending test apparatus was fabricated. The fracture toughness K_ (ⅡC) of the frozen soil was tested and the value of K_ (ⅡC) was measured. The K_ (ⅡC) and Water content, temperature and loading rate of the relationship.