定制雷管微差时间实测与识别法在城市隧道爆破设计中的应用

doi:10.13722/j.cnki.jrme.2014.1034

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摘要微差爆破间隔时间的确定，对高安全性振速指标下的城市复杂环境隧道爆破设计具有重要作用。以重庆渝中连接隧道爆破工程为背景，在采用多段定制非电雷管条件下，研究根据实测雷管延迟时间进行精确爆破设计的方法，用非电雷管实现逐孔掏槽爆破以满足严苛低振速控制要求。比较了Hilbert-Huang变换理论中用于雷管延迟识别的瞬时能量法与EMD识别法的识别能力，发现EMD识别法识别率为70%～90%，比瞬时能量法高约30%。EMD识别法辨别的延迟时间证明实际爆破微差间隔在样本精度范围之内。为准确控制爆破振动，以识别雷管实际延迟时间和振动波形图为依据调整了爆破参数。现场振动监测数据表明：采用多段位定制非电雷管缓解了雷管段别不足的矛盾，根据实测结合EMD识别法识别获得雷管延迟特性进行爆破设计对于严苛振速控制是可行的，在全程爆破振速不超0.8 cm/s条件下进尺1.8 m，通过2次爆破完成上台阶掘进。这一方法对今后城市密集建筑群下浅埋隧道爆破安全施工具有一定的参考价值。

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关键词 ：城市隧道, 微差识别, 振速控制, 爆破设计, HHT

Abstract：Under the condition of safety requirement of high standard for blasting vibration，it plays an important role in tunnel blasting design that the interval time of millisecond blasting is accurately detimined in the complex urban environment. With the engineering background of Chongqing Yuzhong connecting tunnel blasting，an accurate blasting design method basing on the measured delay time is proposed，in which multi-deck customized non-electric detonator is adopted to meet the severe low-vibration control requirement in single hole cutting blasting. The identification ability on detonator’s delay recognition of instantaneous energy method in the Hilbert-Huang Transform theory is compared with EMD method. The recognition rate of EMD method is 70%～90%，about 30% higher than the instantaneous energy method. The delay time identified by the EMD method proves that actual millisecond interval is in the accuracy range of samples. On the basis of vibration wave graph and actual delay time，blasting parameters are adjusted for controlling blasting vibration accurately. Field vibrate monitor data shows that using multi-deck customized non-electric detonator can alleviate the disparity about lacked detonator delay，and single hole cutting can meet severe low vibration controlled requirement； the blasting design combined with measured detonator delay time identified by EMD method is feasible to severe vibration control. Blasting advance per attack can reach to 1.8 m under the condition of vibration velocity is less than 0.8 cm/s，and excavations of upper bench are finished by blasting twice. This design method has a certain reference value for shallow buried tunnel safety blasting operation in urban crowded buildings environment.

Key words： urban tunnel millisecond identification vibration control blasting design HHT

引用本文:

龚敏1，邱燚可可1，李永强2，孟祥栋3. 定制雷管微差时间实测与识别法在城市隧道爆破设计中的应用[J]. 岩石力学与工程学报, 2015, 34(06): 12-12.
GONG Min1，QIU Yikeke1，LI Yongqiang2，Meng Xiangdong3. APPLICATION OF MEASURING AND IDENTIFYING DETONATION TIME OF CUSTOMIZED DETONATOR IN BLASTING DESIGN OF URBAN TUNNEL. , 2015, 34(06): 12-12.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2014.1034 或 http://www.rockmech.org/CN/Y2015/V34/I06/12

[14]	范作鹏，钱守一，李启月. 微差爆破实际延迟时间识别方法比较与优选[J]. 矿冶工程，2012，32(3)：4-8.(FAN Zuopeng，QIAN Shouyi，LI Qiyue. Comparison and optimization of methods for real delay time identification in millisecond blasting[J]. Mining and Metallurgical Engineering，2012，32(3)：4-8.(in Chinese))
[1]	朱正国，孙明路，朱永全，等. 超小净距隧道爆破振动现场监测及动力响应分析研究[J]. 岩土力学，2012，33(12)：3 747-3 752.(ZHU Zhengguo，SUN Minglu，ZHU Yongquan，et al. Field monitoring on blasting vibration and dynamic response of ultra-small spacing tunnels[J]. Rock and Soil Mechanics，2012，33(12)：3 747-3 752.(in Chinese))
[3]	傅洪贤，赵勇，谢晋水，等. 隧道爆破近区爆破振动测试研究[J]. 岩石力学与工程学报，2011，30(2)：335-340.(FU Hongxian，ZHAO Yong，XIE Jinshui，et al. Study of blasting vibration test of area near tunnel blasting source[J].Chinese Journal of Mechanics and Engineering，2011，30(2)：335-340.(in Chinese))
[4]	龚建伍，夏才初，郑志东等.鹤上三车道小净距隧道爆破振动测试与分析[J]. 岩石力学与工程学报，2007，26(9)：1 882-1 887. (GONG Jianwu，XIA Caichu，ZHENG Zhidong，et al. Measurement and analysis of blasting vibration in HESHANG three-lane tunnels with small clear-space[J]. Chinese Journal of Mechanics and Engineering，2007，26(9)：1 882-1 887.(in Chinese))
[6]	朱泽兵，张永兴，刘新荣，等.特大断面车站隧道爆破开挖对地表建筑物的影响[J]. 重庆大学学报，2010，33(2)：110-116.(ZHU Zebing，ZHANG Yongxing，LIU Xinrong，et al. Influence of Blasting vibration on adjacent buildings of station tunnel[J]. Journal of Chongqing university，2010，33(2)：110-116.(in Chinese))
[8]	傅洪贤，沈周，赵勇，等. 隧道电子雷管爆破降振技术试验研究[J]. 岩石力学与工程学报，2012，31(3)：597-603.(FU Hongxian，SHEN Zhou，ZHAO Yong，et al. Experimental study of decreasing vibration technology of tunnel blasting with digital detonator[J]. Chinese Journal of Mechanics and Engineering，2012，31(3)：597-603.(in Chinese))
[9]	HUANG N E，SHEN Z，LONG S R. A new view of nonlinear water waves-Hilbert spectrum[J]. Ann Ren Fluid Mech，1999，31：417-457. " target="_blank">
[11]	徐振洋，杨军，陈占扬. 高精度雷管逐孔起爆地震信号的精确时频分析[J]. 煤炭学报，2013，38：331-335.(XU Zhenyang，YANG Jun，CHEN Zhanyang. Precise time-frequency analysis on seismic signal by hole initiation using high-precision detonators[J]. Journal of China Coal Society，2013，38：331-335.(in Chinese))
[16]	张义平，李夕兵，赵国彦. 爆破微差延时的EMD识别法[J]. 地下空间与工程学报，2006，2(3)：488-490.(ZHANG Yiping，LI Xibing，ZHAO Guoyan. The method of using EMD to identify time of delay in millisecond blasting[J]. Chinese Journal of Underground Space and Engineering，2006，2(3)：488-490.(in Chinese))
[2]	赵明生，梁开水，李本伟. 段药量对爆破振动信号时频特性的影响研究[J]. 振动与冲击，2012，31(7)：85-88.(ZHAO Mingsheng，LIANG Kaishui，LI Benwei. Influence of deck charge on time-frequency characteristics of a blasting vibration signal[J]. Journal of Vibration and Shock，2012，31(7)：85-88.(in Chinese))
[5]	陈庆，王宏图，胡国忠，等.隧道开挖施工的爆破振动监测与控制技术[J]. 岩土力学，2005，26(6)：964-967.(CHEN Qing，WANG Hongtu，HU Guozhong，et al. Monitoring and controlling technology for blasting vibration induced by tunnel excavation[J]. Rock and Soil Mechanics，2005，26(6)：964-967.(in Chinese))
[7]	许登根. 穿越火车站候车厅的浅埋隧道控制爆破[J].爆破，2004，21(4)：22-24.(XU Denggen. Controlled blasting for shallow-buried tunnel under the waiting room in a railway station[J]. Blasting，2004，21(4)：22-24.(in Chinese))
[10]	HUANG N E，SHEN Z，LONG S R，et al. The empirical mode decomposition and the Hilbert spectrum for nonlinear and nonstationary time series analysis[J]. Pro. Roy. Soc. London. A，1998，454：903-995. " target="_blank">
[12]	张义平，李夕兵，赵国彦，等. 基爆破震动信号的时频分析[J]. 岩土工程学报，2005，27(12)：1 473-1 477.(ZHANG Yiping，LI Xibing，ZHAO Guoyan，et al. Time-frequency analysis of blasting vibration signals[J]. Chinese Journal of Geotechnical Engineering，2005，27(12)：1 473-1 477.(in Chinese))
[13]	凌同华，李夕兵. 爆破振动信号不同频带的能量分布规律[J]. 中南大学学报：自然科学版，2004，35(2)：310-315.(LING Tonghua，LI Xibing. Laws of energy distribution in different frequency bands for blast vibration signals[J]. J. Cent. South Univ：Natural Science，2004，35(2)：310-315.(in Chinese))
[15]	钱守一，李启月. 微差爆破实际延迟时间的HHT瞬时能量识别法[J]. 矿业研究与开发，2012，32(2)：113-116.(QIAN Shouyi，LI Qiyue. HHT instantaneous energy method to identify of delay time in millisecond blasting[J]. MINING R&D，2012，32(2)：113-116.(in Chinese))