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Influence of water vapor pressure in surrounding environment on strength and fracture toughness of rocks

机译：周围环境中水蒸气压力对岩石强度和断裂韧性的影响

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In this paper, firstly, uniaxial compression test and Brazilian test of rock were conducted torninvestigate the influence of surrounding non-atmospheric environments on uniaxial compressive strength andrntensile strength. The environments used in this paper were organic vapor, inorganic gas and water vapor. As thernresults, it was founded that water vapor is the most effective agent which promotes stress corrosion for rocks.rnThen, a series of uniaxial compression tests, Brazilian tests and Semi-Circular Bend tests of rocks under variousrnwater vapor pressures was conducted to investigate the influence of the surrounding water vapor environmentrnon uniaxial compressive strength, tensile strength and fracture toughness. The rocks used in this paper werernKumamoto andesite, African granodiorite and Korean granite. It was made clear that rock strengths and fracturerntoughness of these rocks are dependent on the water vapor pressure in the surrounding environment and decreasernwith increasing the pressure.
机译：本文首先对岩石进行单轴压缩试验和巴西试验，以研究周围非大气环境对单轴抗压强度和抗拉强度的影响。本文使用的环境是有机蒸气，无机气体和水蒸气。结果发现，水蒸气是促进岩石应力腐蚀的最有效剂。然后，进行了一系列在不同水蒸气压力下岩石的单轴压缩试验，巴西试验和半圆弯曲试验，以研究其影响。周围水蒸气环境的非单轴抗压强度，抗拉强度和断裂韧性。本文使用的岩石是熊本安山岩，非洲花岗闪长岩和韩国花岗石。已经清楚的是，这些岩石的岩石强度和断裂韧性取决于周围环境中的水蒸气压力，并且随着压力的增加而减小。

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