王忠良,程才林,周江南,高华平,刘文广
WANG Zhong liang 1,CHENG Cai lin 2,ZHOU Jiang nan 1,GAO Hua ping 1,LIU Wen guang 2 (1 Shanghai Seismological Bureau,Shanghai 200062,China; 2 Shanghai Fire Technology Engineering Co Ltd,Shanghai 200060,China)

• 1:上海市地震局
• 2:上海消防技术工程有限公司
• 3:上海市地震局
• 4:上海市地震局

摘要(Abstract)：

利用控制爆破拆除了上海市外环线越江隧道临时干船坞的搅拌桩墙体。文中简介了爆破方案和起爆网路的设计。利用先进的一体化加速度记录系统对爆破震动进行了监测 ,并通过数值积分方法获取速度参数。在此基础上 ,对测试数据、振动速度的传播特性等进行比较详尽的分析。结果表明 ,此次爆破产生的振动速度频谱的主要频率为 2Hz左右 ,与上海地区四类场地土的卓越频率相近 ,与理论估计值吻合
The wall body of temporary dry dock for external ring line tunnel across the Huangpu River in Shanghai was demolished by controlled blasting In this paper,the design of blasting scheme and priming circuit was briefly introduced The monitoring of blasting vibration was carried out by use of an advanced integrated acceleration recording system and the velocity parameters were acquired through the numerical integration On the above basis,the measured data and the propagation characteristics of vibration velocity were analyzed in detail The results indicate that main frequency of vibration velocity spectra is about 2Hz,approximate to the dominant frequency of fourth kind of field earth in Shanghai district and is in line with estimated theoretical value

关键词(KeyWords)： 拆除爆破;控制爆破;震动监测;爆破安全
Demolition blasting; Controlled blasting; Vibration monitoring; Blasting safety

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 王忠良,程才林,周江南,高华平,刘文广
WANG Zhong liang 1,CHENG Cai lin 2,ZHOU Jiang nan 1,GAO Hua ping 1,LIU Wen guang 2 (1 Shanghai Seismological Bureau,Shanghai 200062,China; 2 Shanghai Fire Technology Engineering Co Ltd,Shanghai 200060,China)

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