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
李良安，朱传统，季月伦，张文煊
Li Liangan;
摘要(Abstract)：
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(KeyWords)：
地下工程，围岩扰动，声波检测
Underground engineering Wall rock disturbance Sonic wave detection
基金项目(Foundation):
作者(Authors):
李良安，朱传统，季月伦，张文煊
Li Liangan;