Discussion on Sonic Abnormity between Pre-Blasting Mass and after-Blasting Mass during the Excavation<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

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Discussion on Sonic Abnormity between Pre-Blasting Mass and after-Blasting Mass during the Excavation

详细信息

责任者：Wang Zhengzhe (China Institute of Water Resources and Hydropower Research ; Beijing 100048 ; China) ; Chen Qiang
刊名：Journal of Geological Hazards and Environment Preservation
出版年：2009
卷期：20(4)
关键词：岩体力学 ; rock mechanics ; 声波法 ; acoustical methods
页码：p.122-125
图表：2 illus., 19 refs.
分类号：1702
issnNo：ISSN1006-4362
isbnNo：CN51-1467/P

摘要

Sonic test has been widely applied to many aspects, such as checking up the rock mass quality and affection of Excavation blasting. This paper mainly discusses and analyses the abnormity of sonic contrast between pre-blasting and after-blasting in allusion to the excavation blasting rock body. Reason of the sonic abnormity has been clarified. Then, measures to deal with this problem are put forward.