考虑地应力瞬态卸荷低频放大效应的深埋隧洞爆破开挖振动安全评估

doi:10.13722/j.cnki.jrme.2017.0650

Abstract
Figure/Table
References (35)
Related Citation (15)

Download: PDF (2103 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

During drilling and blasting excavation of deep tunnel，high and low dual-frequency band vibration generated by coupling action of blasting load and transient unloading of in-situ stress will endanger safety of adjacent buildings，but low-frequency amplification effect of transient unloading of in-situ stress is usually ignored in traditional vibration safety evaluation. Firstly，excavation of main underground powerhouse in Pubugou hydropower station as background，vibration spectrum characteristics of hole and adjacent tunnel under coupling action of blasting load and transient unloading were studied by time-energy density，amplitude spectrum and filter analysis method. Then，based on dynamic response analysis of structure，low-frequency amplification effect of transient unloading induced vibration hidden in coupling vibration waveform was discussed. Finally，combined with double index of peak value of particle vibration and vibration frequency，safety of tunnel blasting excavation surrounding rock was evaluated. The results showed that peak value of vibration caused by blasting load is obviously larger than that induced by transient unloading of in-situ stress in hole，distribution law is opposite in adjacent tunnel. Vibration produced by blasting load is mainly high frequency，main frequency range 65–135 Hz，with an average frequency of 96 Hz，but vibration induced by transient unloading is mainly low frequency，main frequency range 20–60 Hz，with an average frequency of 46 Hz. Frequency of transient unloading induced vibration is lower and closer to granite natural frequency of 37 Hz，it is easy to produce resonance，the amplitude magnification reaches 1.72. When in-situ stress level is higher，reaching 70 MPa magnitude，low-frequency amplification effect of transient unloading of in-situ stress results in unsafe zone of surrounding rock expanding significantly from 6.0 m to 20.1 m. The research results can provide a reference for vibration safety evaluation of deep tunnel blasting excavation.

Key words： tunnelling engineering deep tunnel blasting excavation transient unloading spectrum characteristics low-frequency amplification effect safety evaluation

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	FAN Yong1
	2
	3
	WANG Fen1
	2
	4
	LU Wenbo3
	WANG Feng1
	2
	HE Weiping1
	2
	YAN Peng3
	LENG Zhendong3

Cite this article:

FAN Yong1,2,3, et al. Safety evaluation of deep tunnel blasting excavation vibration considering low-frequency amplification effect of transient unloading of in-situ stress[J]. , 2018, 37(S2): 4184-4197.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0650 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS2/4184

[1]	李新平，汪斌，周桂龙. 我国大陆实测深部地应力分布规律研究[J].岩石力学与工程学报，2012，31(增1)：2 875-2 880.(LI Xinping，WANG Bin，ZHOU Guilong. Research on distribution rule ofgeostress in deep stratum in Chinese mainland[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 875-2 880.(in Chinese))
[2]	李海波，蒋会军，赵坚，等. 动荷载作用下岩体工程安全的几个问题[J].岩石力学与工程学报，2003，22(11)：1888-1891.(LIHaibo，JIANGHuijun，ZHAOJian，et，al. Some problems about safety analysis of rock engeering under dynamic load[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(11)：1888-1891.(in Chinese))
[3]	ABUOV M G，AITALIEV S M，ERMEKOV T M，et al. Studies of the effect of dynamic processes during explosive break-out upon the roof of mining excavations[J]. Soviet Mining，1988，24(6)：581-590.
[4]	CARTER J P，BOOKER J R. Sudden excavation of a long circular tunnel in elastic ground[J]. International Journal of Rock Mechanics and Mining Sciences andGeomechanics Abstracts，1990，27(2)：129-132.
[5]	张正宇，刘颖，张文煊. 东风水电站地下厂房爆破振动效应的研究[C]//工程爆破文集(第五辑)，1993：299-305.(ZHANG Zhengyu，LIU Ying，ZHANG Wenxuan. Study on blasting vibration effect of underground powerhouse of Dongfeng hydropower station[C]// Proceedings of the 5th Conference of Engineering Blasting，1993：299-305.(in Chinese))
[6]	李新平，董千，刘婷婷，等. 不同地应力下爆炸应力波在节理岩体中传播规律模型试验研究[J].岩石力学与工程学报，2016，35(11)：2188-2 196.(LI Xinping，DONG Qian，LIU Tingting，etal. Model test on propagation of blasting stress wave in jointed rock mass under different in-situ stresses[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(11)：2188-2 196.(in Chinese))
[7]	卢文波，周创兵，陈明，等. 开挖卸荷的瞬态特性研究[J]. 岩石力学与工程学报，2008，27(11)：2 185-2 192.(LU Wenbo，ZHOU Chuangbing，CHEN Ming，et al. Research on transient characteristics of excavation unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(11)：2 185-2 192.(in Chinese))
[8]	HOLMBERG R，PERSSON P A. The Swedish approach to contour blasting[C]// Proceedings of the 4th Conference on Explosive and Blasting Technique. [S.1.]：[s.n.]，1978：113-127.
[9]	OZER U，KARADOGAN A，KAHRIMAN A，et al. Bench blasting design based on site-specific attenuation formula in a quarry[J]. Arabian Journal of Geosciences，2013，6(3)：711-721.
[10]	焦永斌. 爆破地震安全评定标准初探[J]. 爆破，1995，12(3)：45-47.(JIAO Yongbin. Discussion on the security evaluation criteria under blast-induced vibration[J]. Blasting，1995，12(3)：45-47.(in Chinese))
[11]	吴德伦，叶晓明. 工程爆破安全振动速度综合研究[J]. 岩石力学与工程学报，1997，16(3)：266-273.(WU Delun，YE Xiaoming. A comprehensive review and commendation of blast vibration safety velocity[J]. Chinese Journal of Rock Mechanics and Engineering，1997，16(3)：266-273.(in Chinese))
[12]	阳生权，廖先葵，刘宝琛. 爆破地震安全判据的缺陷与改进[J]. 爆炸与冲击，2001，21(3)：223-228.(YANG Shengquan，LIAO Xiankui，LIU Baochen. Default of the judging standard of blasting vibration safety abstract[J]. Explosion and Shock Waves，2001，21(3)：223-228.(in Chinese))
[13]	言志信，彭宁波，江平，等. 爆破震动安全标准探讨[J]. 煤炭学报，2011，36(8)：1 281-1 284.(YAN Zhixin，PENG Ningbo，JIANG Ping，et al. Research about blasting vibration safety criteria[J]. Journal of China Coal Society，2011，36(8)：1 281-1 284.(in Chinese))
[14]	赵振国，严鹏，卢文波，等. 地应力瞬态卸载诱发振动的能量分布特性[J]. 岩石力学与工程学报，2016，35(1)：32-39.(ZHAO Zhenguo，YAN Peng，LU Wenbo，et al. Energy distribution of vibration induced by transient unloading of in-situ stresses[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(1)：32-39.(in Chinese))
[15]	黄秋香，邓建辉，苏鹏云，等. 瀑布沟水电站地下厂房洞室群施工期围岩位移特征分析[J]. 岩石力学与工程学报，2011，30(增1)：3 032-3 042.(HUANG Qiuxiang，DENG Jianhui，SU Pengyun，et al. Displacement characteristics analysis of surrounding rock in underground powerhouse chambers at Pubugou hydropower station during construction[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp.1)：3032-3042.(in Chinese))
[16]	严军，肖培伟，孙继林. 瀑布沟水电站地下厂房开挖施工综述[J]. 水力发电，2010，36(6)：56-59.(YAN Jun，XIAO Peiwei，SUN Jilin. Underground powerhouse excavation of Pubugou hydropower station[J]. Water Power，2010，36(6)：56-59.(in Chinese))
[17]	凌同华，李夕兵. 多段微差爆破振动信号频带能量分布特征的小波包分析[J]. 岩石力学与工程学报，2005，24(7)：1 117-1 122.(LING Tonghua，LI Xibing. Analysis of energy distributions of millisecond blast vibration signals using the wavelet packet method[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(7)：1117-1122.(in Chinese))
[18]	AMIRI G G，ASADI A. Comparison of different methods of wavelet and wavelet packet transform in processing ground motion records[J]. International Journal of Civil Engineering，2009，7(4)：248-257.
[19]	严鹏，卢文波，罗忆，等. 基于小波变换时-能密度分析的爆破开挖过程中地应力动态卸载震动到达时刻识别[J]. 岩石力学与工程学报，2009，28(增1)：2 836-2 844.(YAN Peng，LU Wenbo，LUO Yi，et al. Identification of arriving time of vibration induced by geostress dynamic unloading during blasting-excavation employing method of time-energy analysis based on wavelet transform[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2836-2844.(in Chinese))
[20]	张胜，凌同华，刘浩然，等. 模式自适应小波时能密度法及其在微差爆破振动信号分析中的应用[J]. 煤炭学报，2014，39(10)：2 007-2 013.(ZHANG Sheng，LING Tonghua，LIU Haoran，et al. Pattern adapted wavelet time-energy density method and its application in millisecond blast vibration signal analysis[J]. Journal of China Coal Society，2014，39(10)：2007-2013.(in Chinese))
[21]	范勇，卢文波，杨建华，等. 深埋洞室开挖瞬态卸荷诱发振动的衰减规律[J]. 岩土力学，2015，36(2)：541-549.(FAN Yong，LU Wenbo，YANG Jianhua，et al. Attenuation law of vibration induced by transient unloading during excavation of deep caverns[J]. Rock and Soil Mechanics，2015，36(2)：541-549.(in Chinese))
[22]	陈劲松，刘艳伟. 基于窗函数的FIR数字滤波器设计[J]. 制造业自动化，2012，34(9)：104-133.(CHEN Jinsong，LIU Yanwei. Based on the window function of the FIR digital filter design[J]. Manufacturing Automation，2012，34(9)：104-133.(in Chinese))
[23]	范勇，卢文波，严鹏，等. 地下洞室开挖过程围岩应变能调整力学机制[J]. 岩土力学，2013，34(12)：3 580-3 586.(FAN Yong，LU Wenbo，YAN Peng，et al. Mechanism of strain energy adjustmentof surrounding rock during excavation of underground caverns[J]. Rock and Soil Mechanics，2013，34(12)：3 580-3 586.(in Chinese))
[24]	范勇，卢文波，周宜红，等. 开挖卸荷诱导的高储能岩体能量动态释放过程研究[J]. 岩石力学与工程学报，2016，35(增2)：3 706- 3 715.(FAN Yong，LU Wenbo，ZHOU Yihong，et al. Study on energy release process of high energy storage rock mass induced by excavation unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(Supp.2)：3706-3715.(in Chinese))
[25]	LINDIN G L，LOBANOVA T V. Energy sources of rockbursts[J]. Journal of Mining Science，2013，49(1)：36-43.
[26]	范勇，江璐，卢文波，等. 圆形隧洞爆破荷载与瞬态卸荷作用围岩应变能效应研究[J].岩石力学与工程学报，2017，36(8)：1855-1866.(FAN Yong，JIANG Lu，LU Wenbo，et al.Strain energy characteristics of surrounding rock under blasting load and transient release of geostress during excavation of circular tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(8)：1855-1866. (in Chinese))
[27]	LU W B，YANG J H，YAN P，et al. Dynamic response of rock mass induced by the transient release of in-situ stress[J]. International Journal of Rock Mechanics and Mining Sciences，2012，53(9)：129-141.
[28]	YANG J H，LU W B，CHEN M，et al. An equivalent simulation method for whole time-history blasting vibration[J]. Rock Fragmentation by Blasting，FRAGBLAST 10，2013：473-481.
[29]	TORANO J，RODRÍGUEZ R，DIEGO I，et al. FEM models including randomness and its application to the blasting vibrations prediction[J]. Computers and Geotechnics，2006，33(1)：15-28.
[30]	卢文波，杨建华，陈明，等. 深埋隧洞岩体开挖瞬态卸荷机制及等效数值模拟[J]. 岩石力学与工程学报，2011，30(6)：1 089-1 096. (LU Wenbo，YANG Jianhua，CHEN Ming，et al. Mechanism and equivalent numerical simulation of transient release of excavation load for deep tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)：1089-1096.(in Chinese))
[31]	曹孝君，张继春，吕和林. 频率对爆破地震作用下结构的动力响应的影响研究[J]. 爆破，2006，23(2)：14-19.(CAO Xiaojun，ZHANG Jichun，LU Helin. Effect of frequency on the dynamic response of structure resulting from blasting seism[J]. Blasting，2006，23(2)：14-19.(in Chinese))
[32]	朱明礼，朱珍德，李刚，等. 循环荷载作用下花岗岩动力特性试验研究[J]. 岩石力学与工程学报，2009，28(12)：2520-2526.(ZHU Mingli，ZHU Zhende，LI Gang，et al.Experimental study of dynamic characteristics of granite under cyclic loading[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(12)：2520-2526.(in Chinese))
[33]	王思雯，雷媛，林斐，等. 岩石频率的实验研究[J]. 中国科技信息，2010，(9)：68-69.(WANG Siwen，LEI Yuan，LIN Fei，et al.Experimental study on rock frequency[J]. China Science and Technology Information，2010，(9)：68-69.(in Chinese))
[34]	中华人民共和国国家标准编写组. GB6722—2014爆破安全规程[S]. 北京：中国标准出版社，2015.(The National Standards Compilation Group of People¢s Republic of China. GB6722—2014 Safety regulations for blasting[S]. Beijing：Chinese Standard Press，2015.(in Chinese))
[35]	杨珊，陈建宏，郭宏斌，等. 基于回归分析的隧道爆破振动传播规律研究[J]. 中国安全科学学报，2011，21(10)：71-75.(YANG Shan，CHEN Jianhong，GUO Hongbin，et al. Application of regressive analysis in the research on propagation law of tunnel blasting vibration[J]. China Safety Science Journal，2011，21(10)：71-75.(in Chinese))