RESEARCH ON MARBLE KAISER EFFECT AFFECTED BY TIME FACTOR
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摘要: 岩石的凯塞效应具有记忆历史最大应力和应变的能力,但时隔两月对大理岩样品进行再加载试验表明,尽管大理岩仍有凯塞效应出现,但凯塞效应记忆先前应力和先前应变的准确程度不高。笔者认为岩石声发射产生的原因在于其内部存在的裂纹,岩石凯塞效应的机理则在于对其先前损伤的记忆。按照笔者确定的损伤因子,凯塞效应具有记忆先前损伤的能力,时隔两个月对大理岩样品进行再加载试验,凯塞效应记忆先前损伤的准确程度仅损失3%。文章从时间因素证明了凯塞效应的机理在于对先前损伤的记忆。Abstract: Marble specimens were reloaded after two months to investigate that time factor has influence on Kaiser effect. The results show that after two months the marble has poor ability to remember its previous stress and strain, but can remember its previous damage very accurately. Therefore from the view of time factor the mechanism of Kaiser effect of marble is reflect of rememberance of rock previous damage.
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Key words:
- marble /
- Kaiser effect /
- stress /
- strain /
- damage
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