袁良远;唐春海;朱加雄;白玉;
YUAN Liang-yuan;TANG Chun-hai;ZHU Jia-xiong;BAI Yu;Liupanshui Jiuxiang Blasting Engineering Co.,Ltd.;College of Resources and Metallurgy,Guangxi University;Bijie Hengyu Blasting Engineering Co.,Ltd.;

• 1:六盘水久翔爆破工程有限公司
• 2:广西大学资源与冶金学院
• 3:毕节市恒宇爆破工程有限公司

摘要(Abstract)：

为确保公路隧道爆破施工过程中既有铁路隧道的结构安全,采取了以下措施严格控制爆破振动产生的危害。通过参考相关资料,将上行铁路隧道的振动安全控制标准确定为8.0cm/s。隧道采用台阶法开挖,上台阶爆破循环进尺为0.9m,以控制每次爆破的爆破规模。爆破施工过程中采取了一系列减振技术措施,如增加起爆段别、减少单段起爆药量、增加空孔数量等。爆破取得了良好效果,对既有隧道没有造成影响,达到了预期目的。
For the safety of existing railway tunnel when the new one was in construction,some measurements were taken for controlling damage of blasting vibration.According to relevant safety standard information,the blasting vibration safety control standard was determined to be 8.0cm/s for the existing tunnel.Bench method was used and blasting advance per round of 0.9m was set up to reduce blasting scale at upper bench.A series of techniques were taken during tunnel blasting to reduce the vibration,such as increasing initiation segments,decreasing the charge amount per delay interval,drilling more empty holes and so on.A good blasting effect without any negative impact on the existing railway tunnel was finally achieved.

关键词(KeyWords)： 交叉隧道;隧道爆破;爆破振动;控制爆破
Cross tunnel;Tunnel blasting;Blasting vibration;Control blasting

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 袁良远;唐春海;朱加雄;白玉;
YUAN Liang-yuan;TANG Chun-hai;ZHU Jia-xiong;BAI Yu;Liupanshui Jiuxiang Blasting Engineering Co.,Ltd.;College of Resources and Metallurgy,Guangxi University;Bijie Hengyu Blasting Engineering Co.,Ltd.;

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