城市浅埋隧道爆破地震波的降振技术
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摘要
结合工程实践,本文介绍了厦门机场路一期工程(仙岳路~演武大桥段)JC3合同段隧道爆破降震试验与爆破振动监测。根据监测数据分析发现,爆破振动的最大值不是出现在最大段药量爆破的时刻而是出现在掏槽孔,并根据监测结果修改爆破设计,最终使地表爆破震动振速控制在0.5cm/s以内,确保了地表建筑群的安全与隧道施工的正常进行,其成功经验可为今后同类工程提供借鉴。
Combined with the engineering practice,the test of reducing blast vibration and the monitor of blast vibration are introduced on the third contract section of Xiamen airport highway from Xianyue road to Yanwu bridge.The test results demonstrate that the max value of blast vibration is caused by the wedge cutting holes instead of the max section charge.The value of blast vibration is controlled below 0.5cm/s through the blasting design revision on the basis of the test results.Thus the safety of the building around the blasting area is guaranteed and the tunnel can be smoothly constructed.The technique can be used for reference of similar blast engineering.
Combined with the engineering practice,the test of reducing blast vibration and the monitor of blast vibration are introduced on the third contract section of Xiamen airport highway from Xianyue road to Yanwu bridge.The test results demonstrate that the max value of blast vibration is caused by the wedge cutting holes instead of the max section charge.The value of blast vibration is controlled below 0.5cm/s through the blasting design revision on the basis of the test results.Thus the safety of the building around the blasting area is guaranteed and the tunnel can be smoothly constructed.The technique can be used for reference of similar blast engineering.
引文
[1]中华人民共和国国家标准,爆破安全规程(GB6722-2003)[S],北京:中国标准出版社,2004:42~43
[2]顾毅成,主编,爆破工程施工与安全,北京:冶金工业出版社,2004:215~216
[3]黄永祥,黄浩雄等,建筑物下爆破地震效应的研究—《爆破安全规程》的应用与修正[J],地震研究.2002,25(3):287~294
[4]G.Abollinger,《Blast Vibration Analysis》.Southern Illinois Uni-versity Press(February 1980)
[5]言志信,吴德伦,许明,地震效应及安全研究[J].岩土力学.2002,23(2):201~203
[6]郑大榕,南京地铁隧道爆破,开挖与振动控制铁道工程学报[J],2004,83(3):73~75
[7]陈寿如,谢圣权,最大段药量控制爆破降震在某采场中的应用研究[J],采矿技术,2003,27(3):28~30
[8]付士根,许开立,爆破震动效应预报及减震措施[J],中国安全生产科学技术.2006,2(6):45~48
[9]谢亮,城市控制爆破安全工作的探讨,安全与环境工程,2002,6(2):65~68
[2]顾毅成,主编,爆破工程施工与安全,北京:冶金工业出版社,2004:215~216
[3]黄永祥,黄浩雄等,建筑物下爆破地震效应的研究—《爆破安全规程》的应用与修正[J],地震研究.2002,25(3):287~294
[4]G.Abollinger,《Blast Vibration Analysis》.Southern Illinois Uni-versity Press(February 1980)
[5]言志信,吴德伦,许明,地震效应及安全研究[J].岩土力学.2002,23(2):201~203
[6]郑大榕,南京地铁隧道爆破,开挖与振动控制铁道工程学报[J],2004,83(3):73~75
[7]陈寿如,谢圣权,最大段药量控制爆破降震在某采场中的应用研究[J],采矿技术,2003,27(3):28~30
[8]付士根,许开立,爆破震动效应预报及减震措施[J],中国安全生产科学技术.2006,2(6):45~48
[9]谢亮,城市控制爆破安全工作的探讨,安全与环境工程,2002,6(2):65~68
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