郑爽英,邹新宽

• 1:西南交通大学木工程学院

摘要(Abstract)：

以西安成都客运专线下穿埋地石油管道的仙女岩隧道掘进爆破为背景,根据隧道与管道的空间位置关系以及掏槽孔爆破的装药结构,按照等效炸药量原理建立了隧道—管道的三维非线性动力有限元模型。利用有限元软件ANSYNS/LS-DYNA模拟管道地表的振动响应,通过与现场实测振动速度波形的对比分析,验证了模型计算结果的准确性和可靠性。以此为基础,进行爆破振动作用下的埋地管道-土体接触面的动力响应分析和管道安全性评估。研究结果表明:隧道爆破作用时,管道—土体接触面上管道的最大振动速度约为土体峰值振动速度的1.6~5.0倍;埋地输油管道的最大当量应力为102.08 MPa,远小于管道许用应力434.70 MPa,隧道按照既定爆破方案进行开挖所产生的振动不会影响管道安全。

关键词(KeyWords)： 隧道掘进爆破;埋地石油管道;安全性;动力响应;振动速度;当量应力

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费科技创新项目(2682013CX050)

作者(Author): 郑爽英,邹新宽

参考文献(References)：

• [1]MICHAEL O'Rourke,M EERI,ERIK Deyoe.Seismic damage to segmented buried pipe[J].Earthquake Spectra,2004,20(4):1167-1183.
• [2]ROBERT B Francini,WILLIAM Nik Baltz.Blasting and construction vibrations near existing pipelines,what are appropriate levels[C]∥Proceedings of 7th International Pipeline Conference,Calgary,Alberta,Canada,2008:1-13.
• [3]SU Hua-you,HUANG Jin,XIAO Ding-jun,et al.Analysis of characteristics of compound vibration and effects to surrounding gas pipeline caused by impact and explosion[C]∥Proceeding of First International Symposium on Mine Safety Science and Engineering,Beijing,China,2011:1835-1843.
• [4]王飞,王连来,刘广初.爆炸荷载对天然气管道(空管)的破坏作用研究[J].爆破,2006,23(4):20-24.[4]WANG F,WANG L L,LIU G C.Numerical simulation on damage of pipeline(empty)for natural gas under blast loading[J].Blasting,2006,23(4):20-24.(in Chinese)
• [5]WHEELER Randall M.Resolution to a conflict regarding blasting near a high pressure pipeline[J].Journal of Explosives Engineering,2012,29(1):34-40.
• [6]梁向前,谢明利,冯启,等.地下管线的爆破振动安全试验与监测[J].工程爆破,2009,15(4):66-68.[6]LIANG X Q,XIE M L,FENG Q,et al.Safety testing and monitoring of blasting vibration on underground pipeline[J].Engineering Blasting,2009,15(4):66-68.(in Chinese)
• [7]AIMONE-MARTIN Catherine,CLAH Ed.Response of a high-pressure natural gas pipeline to coal mine blasts[C]∥Proceedings of the Twenty-Ninth Conference on Explosives and Blasting Technique,Nashville,TN,United states,2003:213-222.
• [8]GANSTER M.Controlled hard rock trench blasting close to a buried gas pipeline under pressure[J].Journal of Explosives Engineering,2011,28(1):8-20.
• [9]郭王林,蒲传金,肖定军,等.桥梁桩基爆破近区地震波传播特性及应用研究[J].爆破,2014,31(3):96-102.[9]GUO W L,PU C J,XIAO D J,et al.Application research and propagation characteristics of seismic wave induced by bridge pile foundation blasting demolition[J].Blasting,2014,31(3):96-102.(in Chinese)
• [10]都的箭,邓正栋,张平,等.土中爆炸地冲击作用下埋地管线动应力的数值模拟[J].爆破,2005,22(1):20-24.[10]DU D J,DENG Z D,ZHANG P,et al.Numerical simulation for dynamic stress of buried pipelines under ground shock waves of explosion in soil medium[J].Blasting,2015,22(1):20-24.(in Chinese)
• [11]刘建民,陈文涛.爆炸荷载下埋地管道动力响应分析研究[J].工程爆破,2008,14(2):20-24.[11]LIU J M,CHEN W T.Dynamic response study of buried pipeline subjected to blast load[J].Engineering Blasting,2008,14(2):20-24.(in Chinese)
• [12]都的箭,梁雪莹,邓正栋,等.埋地管线爆炸地冲击作用下解析解计算研究[J].爆破,2011,28(3):21-25.[12]DU D J,LIANG X Y,DENG Z D et al.Research on analytic calculation method of buried pipelines under explosion ground shock waves[J].Blasting,2011,28(3):21-25.(in Chinese)
• [13]JONG Hwa Won,MOON Kyum Kim,GUN Kim,et al.Blast-induced dynamic response on the interface of a multilayered pipeline[J].Structure and Infrastructure Engineering,2014,10(1):80-92.
• [14]刘全林.地埋管道与土相互作用平面分析与计算方法[J].岩土力学,2007,28(1):83-88.[14]LIU Q L.Calculating method and analysis of plane strain question of interaction between buried pipe and soil[J].Rock and Soil Mechanics,2007,28(1):83-88.(in Chinese)
• [15]张继春,曹孝君,郑爽英,等.浅埋隧道掘进爆破的地表震动效应试验研究[J].岩石力学与工程学报,2005,24(22):4158-4163.[15]ZHANG J C,CAO X J,ZHENG S Y,et al.Experimental study on vibration effects of ground due to shallow tunnel blasting[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(22):4158-4163.(in Chinese)
• [16]BERTA G G.Blasting-induced vibration in tunneling[J].Tunnelling and Underground Space Technology,1994,9(2):175-187.
• [17]楼晓明,郑俊杰,马建军,等.隧道爆破振动速度研究[J].有色金属(矿山部分),2007,59(3):31-34.[17]LOU X M,ZHENG J J,MA J J,et al.Study on blasting vibration velocity in tunnel[J].Nonferrous Metal(Mine),2007,59(3):31-34.(in Chinese)