To study the cumulative damage effect of tunnel blasting on surrounding rock, the ground penetrating radar was used to detect the surrounding rock damage during tunnel blasting excavation.Based on the characteristic of a short-time non-stationary random signals, the Hilbert-Huang transform (HHT) method was used to process the radar signals to remove interference and extract instantaneous parameters that can effectively reflect the damage characteristics, thereby obtaining a more intuitive image of surrounding rock damage area.The damage area could be divided into minor and severely damaged areas based on the difference in instantaneous amplitude.The results show that blasting can directly cause a large number of severely damage to the near area.The farther area is less affected by direct blasting, and almost no new damage is generated, but the minor damage area that already exists could turn into severely one, and within 60 m from the explosion, the more the number of blasting, the greater the cumulative damage effect would be.
宋肖龙,高文学,季金铭,叶明班,张登杰. 爆破振动对隧道围岩累积损伤效应的影响[J]. 振动与冲击, 2020, 39(24): 54-62.
SONG Xiaolong,GAO Wenxue,JI Jinming,YE Mingban,ZHANG Dengjie. Influence of blasting vibration on cumulative damage of surrounding rock. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(24): 54-62.
[1] Yilmaz O , Unlu T . Three dimensional numerical rock damage analysis under blasting load[J]. Tunneling & Underground Space Technology Incorporating Trenchless Technology Research, 2013, 38(9):266-278.
[2] 杨更社. 岩石损伤检测技术及其进展[J]. 长安大学学报(自然科学版), 2003, 23(6):47-55.(YANG Geng-she. Advances and development of damage measurement technique of rock[J]. Journal of Chang`an University( Natural Science Edition), 2003, 23(6):47-55.(in Chinese))
[3] 李术才, 刘斌, 孙怀凤,等. 隧道施工超前地质预报研究现状及发展趋势[J]. 岩石力学与工程学报, 2014, 33(6), 1090-1012.(Li Shucai, Liu Bin, Sun Huaifeng, et al State of art and trends of advanced geological prediction in tunnel construction[J]. Chinese Journal of Rock Mechanics and Engineering, 2014,33(6), 1090-1012.(in Chinese))
[4] 腾俊洋. 多场耦合下层状岩体损伤破裂过程及隧道开挖损伤区评估[D]. 重庆:重庆大学,2017, 160-166.( Teng Junyang. Damage Rupture Process of Layered rock and Excavation Damage Zone Evaluation of Tunnel Under Multi Field Coupling [D]. Chongqing: Chongqing university, 2017, 160-166 (in Chinese))
[5] 郭亮, 李俊才, 张志铖, 等. 地质雷达探测偏压隧道围岩松动圈的研究与应用[J]. 岩石力学与工程学报, 2011, 33(1), 3009-3015.(Guo Liang, Li Juncai, Zhang Zhicheng, et al Research on surrounding rock loose zone of tunnel under unsymmetrical loading with ground penetrating radar and its application[J] Chinese Journal of Rock Mechanics and Engineering, 2011, 33(1), 3009-3015(in Chinese))
[6] 周轮, 李术才, 许振浩, 等. 隧道施工期超前预报地质雷达异常干扰识别及处理[J]. 隧道建设, 2016(12):1517-1522.( ZHOU Lun, LI Shucai, XU Zhenhao, et al. Interpretation and treatment of interfering factors in advance geological prediction by ground penetrating radar of tunnel construction[J]. Tunnel Construction, 2016(12):1517-1522(in Chinese))
[7] 张义平, 李夕兵, 赵国彦. 基于HHT方法的爆破地震信号分析[J]. 工程爆破, 2005, 11(1):1-7.( ZHANG Yi-ping, LI Xi-bing, ZHAO Guo-yan, Analysis of blasting vibration signal based on HHT method[J]. Engineering Blasting, 2005, 11(1):1-7 (in Chinese))
[8] 钟佑明, 秦树人, 汤宝平. 一种振动信号新变换法的研究[J]. 振动工程学报, 2002(2):233-238.( Zhong Youming, Qin Shuren, Tang Baoping. Study on a New Transform Method for Vibration Signal[J]. Journal of Vibration Engineering, 2002(2):233-238. ( in Chinese))
[9] 凌同华, 张胜, 李升冉. 地质雷达隧道超前地质预报检测信号的HHT分析法[J]. 岩石力学与工程学报, 2012, 31(7). (LING Tonghua, ZHANG Sheng, LI Shengran. Hilbert-huang transform method for detection signal of tunnel geological prediction using ground penetrating[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(7) (in Chinese))
[10] 余中明. 探地雷达技术在隧道掘进预报中的应用[J]. 地质与勘探, 1999, 35(3):30-31.( Yu Zhongming. The application of sounding radar to tunneling forecast[J]. Geology and Prospecting, 1999, 35(3):30-31. (in Chinese))
[11] 逄焕东, 陈士海. 弹性介质中爆破地震波传播的分区变化规律研究[J]. 振动与冲击, 2009, 28(3):105-107. (Pang Huan-dong, Chen Shi-hai. Study on the variation law of blasting seismic wave’s propagation in elastic media[J]. Journal of Vibration and Shock, 2009,28(3):105-107(in Chinese))
[12] 张在晨, 林从谋, 黄志波,等. 隧道爆破近区振动的预测方法[J]. 爆炸与冲击, 2014, 34(3):367-372. (Zhang Zai-chen, Lin Cong-mou, Huang Zhi-bo, et al. Prediction of blasting vibration of area near tunnel blasting source[J].
Explosion and Shock Waves, 2014,34(3):267-272(in Chinese))
[13] 杨泉, 李才明. 应用MATLAB实现探地雷达数据小波变换处理[J]. 地质与勘探, 2005, 41(5). (YANG Quan, LI Cai-ming. Data processing of GPR using wavelet transform based on MATLAB[J]. Geology and Prospecting, 2005, 41(5). (in Chinese))
[14] 吴宝杰, 田钢. 基于matlab的pulseEKKO PRO型地质雷达数据读取与显示[J]. 工程地球物理学报, 2006(5):381-385. (WU Baojie, TIAN Gang. Read and display of pulseEKKO PRO ground penetrating radar data based on MATLAB[J]. Chinese Journal of Engineering Geophysics, 2006(5):381-385. (in Chinese))
[15] 孙强, 王梦晓, 徐玉山, 等. 岩巷爆破振动信号的HHT分析与应用[J]. 工程爆破, 2016, 22(1):1-7.(SUN Qiang, WANG Mengxiao, XU yushan, et al. HHT Analysis and application of blasting vibration in roadway excavation[J]. Engineering Blasting, 2016, 22(1):1-7. (in Chinese))
[16] 李夕兵, 张义平, 左宇军,等. 岩石爆破振动信号的EMD滤波与消噪[J]. 中南大学学报(自然科学版), 2006, 37(1):150-154.( LI Xibing, ZHANG Yiping, ZUO Yujun, et al. Filtering and denoising of rock blasting vibration signal with EMD[J]. Journal of Central South University (Science and Technology), 2006, 37(1):150-154. (in Chinese))
[17]Huang N E , Shen Z , Long S R . A new view of non-linear water waves: The Hilbert Spectrum[J]. Annual Review of Fluid Mechanics, 2003, 31(1).
[18] 谭善文, 严利, 熊朝坤. . 一种新型的谱分析方法—Hilbert谱[C] //《水动力学研究与进展》编委会. 第十七届全国水动力学研讨会暨第六届全国水动力学学术会议文集. 上海: 《水动力学研究与进展》杂志社,2003, 1:193-200. (Tan Shanwen, Yan Yi, Xiong Chaokun. Introduction to new spectrum analytic method-Hibert spectrum[C]//Editorial Committee on Journal of Hydrodynamics. The 17th National Hydrodynamics Symposium and the 6th National Hydrodynamics Conference. Shanghai: National Hydrodynamics Conference. 2003, 1:193-200(in Chinese))
[19] 彭瑞东, 刘红彬, 王建强,等. 岩石损伤检测技术的研究进展[J]. 岩矿测试, 2007, 26(1):66-71.( PENG Rui-dong, LIU Hong-bin, WANG Jian-qiang, et al. Developments in rock damage detection techniques[J]. Rock and Mineral Analysis, 2007, 26(1):66-71. (in Chinese))