小浪底水利枢纽地下工程爆破对隧洞围岩扰动影响的声波检测  

DETERMINATION OF DISTURBANCE EFFECT BY SONIC WAVE VELOCITY TO UNDERGROUND ENGINEERING BLASTING ON WALL ROCK OF TUNNEL IN XIAOLANGDI WATER CONSERVANCY PROJECT

作　　者：李良安[1] 朱传统[1] 季月伦[1] 张文煊[1] 

机构地区：[1]武汉长江科学院

出　　处：《工程爆破》1996年第4期113-117,125,共6页Engineering Blasting

摘　　要：本文概述了声波检测中的钻孔布置原则、仪器设备及检测要点，分析了检测成果，提出了半孔率大于９０％的成功光面爆破对围岩影响厚度约为炮孔孔径的８倍，即０．４ｍ左右，是非光面爆破影响厚度的５０％。The principle of drill holes pattern,the measuring facilities and the detection essentials in sonic detection are briefly introduced.The detected results are analyzed.Successful smooth blasting with the semi-hole ratio>90%,the effected depth of wall rock approximately 0.4m,or 8 times as much as the diameter of the hole,and 50% of the effected depth in non-smooth blasting are put forward in this paper.

关 键 词：地下工程 围岩 扰动 声波检测 水利枢纽 爆破 

分 类 号：TV542[水利工程—水利水电工程]