混凝土缺陷损伤声发射技术试验研究

EXPERIMENTAL STUDY ON DAMAGE DIAGNOSIS OF CONCRETE INTERIOR DEFECTS WITH ACOUSTIC EMISSION

声发射技术是一种动态的无损检测技术,而且声发射信号来自缺陷本身,因此,用声发射法可以判断缺陷的严重性。一个同样大小、同样性质的缺陷,当它们所受到的应力状态和所处的位置不同时,对结构的损伤程度也不同,所以它们的声发射特征亦有差异。

The acoustic emission technology is one kind of dynamic non-destructive inspection technology, moreover sound transmitting message from flaw itself, therefore, may judge the flaw with the sonar efflux the gravity. A similar size, uniform quality flaw, when they receive the stress condition and locates when the position is different, is also different to the structure extent of damage, therefore their acoustic emission characteristic also has the difference.