Creep of Sanjome Andesite under Air-dried and Saturated Conditions.
Creep of Sanjome Andesite under Air-dried and Saturated Conditions.
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三城目安山岩在风干和饱和条件下的蠕变。
DOI：
10.2473/shigentosozai.109.917
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
S. Chu
中科院分区：
文献类型：
--
作者：
S. Okubo;S. Chu
众所周知，水分对岩石的物理性质有不同的影响。例如，据报道，页岩和砂岩在饱和水条件下的抗压强度下降到干燥条件下的50%左右。然而，高湿度条件下的蠕变等时间相关特性仍有待讨论。在本研究中，进行了102个风干条件下的单轴蠕变试验和174个水下蠕变试验。最重要的结果是，寿命由(δF-oδc)的函数给出，其中δF和δc表示单轴抗压强度和蠕变应力。这在风干和水饱和的条件下是正确的。此外，在不考虑蠕变应力的情况下，饱和水条件下的蠕变曲线与风干条件下的蠕变曲线非常吻合。
It is well known that moisture has a varying effect on the physical properties of rocks. For example, it is reported that the compressive strength of shale and sandstone under water saturated conditions decreases to about 50% of that under dry conditions. However, time-dependent behaviour such as creep at high humidity levels is still open to discussion.In this study, 102 uniaxial creep tests under air-dried conditions and 174 creep tests submerged in water have been carried out. The most important result is that the life time is given by a function of (δF-oδc) where δF and δc denote the uniaxial compressive strength and the creep stress. This is true through air-dried and water saturated conditions. Also it was found that the creep curve of e vst*(elapsed time over life time) under water saturated conditions coincides very well with that under air-dried conditions without regard to creep stress.