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目前,岩石断裂韧度的测定,国内外多是沿用室内测定金属断裂韧度的方法,而没有采用现场测定.但是,在岩石力学领域中,各种力学参数多由现场测定,而岩石断裂韧度是否也可以由现场测定,根据狭缝法变形试验条件,我们认为这种方法是可以进行岩石断裂韧度的测定的.不过,当时并没有能够用具体资料来说明.本文根据云南水电科学技术研究所和水利电力部东北勘测设计院水科所的一些狭缝法试验资料,虽然这些试验原来并不是专为测定现场岩体断裂韧度的,但因其在试验过程中注意观察了裂缝
At present, the determination of fracture toughness of rock is based on the method of indoor measurement of fracture toughness of the metal, but no on-site measurement is used. However, in the field of rock mechanics, various mechanical parameters are mostly measured on site, and the rock fracture toughness Whether the degree can also be determined from the scene, according to the slit deformation test conditions, we believe that this method can be used to determine the fracture toughness of rock. However, it was not able to explain with specific data at that time. This article is based on Yunnan Hydropower Science and Technology Although some of the slit test data from the Institute of Water Resources and the Ministry of Water Resources and Electric Power Northeast Institute of Surveying and Design Institute of Water Resources were not specifically designed to determine the fracture toughness of the site, they were observed during the test.