岩体开挖爆破前后波速变化异常探讨  

DISCUSSION ON SONIC ABNORMITY BETWEEN PRE-BLASTING MASS AND AFTER-BLASTING MASS DURING THE EXCAVATION

作　　者：王正哲[1] 陈强[2] 杨敏[3] 

机构地区：[1]中国水利水电科学研究院,北京100048 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [3]四川省地质环境监测总站,成都610081

出　　处：《地质灾害与环境保护》2009年第4期122-125,共4页Journal of Geological Hazards and Environment Preservation

摘　　要：声波测试广泛运用于复核开挖岩体质量、检验开挖爆破效果等多个方面,本文针对开挖岩体爆破前、后波速对比时出现的波速变化异常问题进行分析讨论,阐明产生波速异常的根结所在,并提出防止类似问题出现的应对措施。Sonic test has been widely applied to many aspects, such as checking up the rock mass quality and effection of Excavation blasting. This paper mainly discusses and analyses the abnormity of sonic contrast between pre blasting and afte-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.

关 键 词：爆破开挖 岩体试验 声波测试 松弛带 

分 类 号：TD235[矿业工程—矿井建设]