汪波,李铮,杨赛舟,陈昆萍,郭新新

• 1:西南交通大学交通隧道工程教育部重点实验室
• 2:成都市政工程设计研究院

摘要(Abstract)：

鉴于当前地下工程爆炸爆破施工中最大单段炸药量计算所存在的不确定性较大,以莞惠城际隧道为依托,基于现场实测数据对萨道夫斯基公式中关键参数进行拟合并建立三维分析模型,通过对比理论解析和数值模拟结果,研究近接施工中最大单段炸药量的合理确定方法。结果表明:理论计算和数值模拟均可求解隧道爆破施工中的最大单段炸药量,但后者更接近工程实际,其求解应以理论公式的拟合回归为基础;使用萨道夫斯基公式时,K、α直接选用规范建议值将造成较大误差,工程中应根据实测振动数据进行回归分析,从而确定合理的参数值以指导后期施工;萨道夫斯基公式和数值模拟法可以相互验证以提高结果准确性,实测振动数据较少时综合利用两种方法可有效确定最大单段炸药量。

关键词(KeyWords)： 爆破施工;振速;最大单段炸药量;萨道夫斯基公式;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然基金高铁联合基金资助(No.U1134208);; 国家自然科学基金资助(No.51378434、No.51578456);; 国家科技支撑计划资助(No.2012BAG05B03);; 广东省交通运输厅科技项目(No.2012-02-032)

作者(Author): 汪波,李铮,杨赛舟,陈昆萍,郭新新

参考文献(References)：

• [1]李铮,汪波,骆耀文,等.城市隧道下穿密集建筑区静、动力响应特征分析[J].铁道科学与工程学报,2015,12(2):384-392.[1]LI Zheng,WANG Bo,LUO Yao-wen,et al.Analysis of static and dynamic response characteristics of urban tunnels passing underneath dense-constructed areas[J].Joumal of Railway Science and Engineering,2015,12(2):384-392.(in Chinese)
• [2]HE Chuan,WANG Bo.Research progress and development trends of highway tunnels in China[J].Journal of Modern Transportation,2013,21(4):209-223.
• [3]孙志果,王晓雯.浅埋隧道掏槽爆破地表质点震速规律研究[J].现代隧道技术,2015,52(1):163-167.[3]SUN Zhi-guo,WANG Xiao-wen.On the velocity law of ground particle vibration induced by cut blasting in a shallow-buried tunnel[J].Modern Tunneling Technology,2015,52(1):163-167.(in Chinese)
• [4]丁松波,吴从师,罗杰峰,等.地铁基坑爆破中减振孔的降振效果实测研究[J].铁道科学与工程学报,2014,11(4):85-89.[4]DING Song-bo,WU Cong-shi,LUO Jie-feng,et al.Study on the effect of damping hole on reducing blasting vibration under the excavation of subway foundation pits[J].Journal of Railway Science and Engineering,2014,11(4):85-89.(in Chinese)
• [5]言志信,王永和,江平,等.爆破地震测试及建筑结构安全标准研究[J].岩石力学与工程学报,2003,22(11):1907-1911.[5]YAN Zhi-xin,WANG Yong-he,JIANG Ping,et al.Study on measurement of blast-induced seism and building safety criteria[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(11):1907-1911.(in Chinese)
• [6]薛宪彬,张计璨,孙雪琴.城市地下工程爆破震动控制技术措施[J].现代隧道技术,2014,51(4):191-194.[6]XUE Xian-bin,SUN Ji-can,SUN Xue-qin.Technical measure for blasting vibration control in urban underground works[J].Modern Tunneling Technology,2014,51(4):191-194.(in Chinese)
• [7]粟闯,刘敦文,向海波,等.基于BP神经网络不同输入变量的爆破振速预测[J].工业安全与环保,2012,38(2):51-56.[7]SU Chuang,LIU Dun-wen,XIANG Hai-bo,et al.Prediction of blasting vibration by BP neural network based on different input variables[J].Industrial Safety and Environmental Protection,2012,38(2):51-56.(in Chinese)
• [8]唐海,李海波.反映高程放大效应的爆破振动公式研究[J].岩土力学,2011,32(3):820-824.[8]TANG Hai,LI Hai-bo.Study of blasting vibration formula of reflecting amplification effect on elevation[J].Rock and Soil Mechanics,2011,32(3):820-824.(in Chinese)
• [9]谭文辉,乔兰.爆破震动对公路边坡稳定性影响的数值模拟[J].岩石力学与工程学报,2005,24(S1):4837-4842.[9]TAN Wen-hui,QIAO Lan.Numerical simulation of blasting vibration on highway-slope stability[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(S1):4837-4842.(in Chinese)
• [10]M A萨道夫斯基,著.地震预报[M].陈英方,译.北京:地震出版社,1986.
• [11]夏祥,石永强,李海波,等.岩体单孔及群孔齐发爆破爆炸荷载数值分析[J].岩石力学与工程学报,2007,26(S1):3390-3396.[11]XIA Xiang,SHI Yong-qiang,LI Hai-bo,et al.Numerical analysis of explosive load of single-hole blasting and multiple-hole simultaneous blasting in rockmass[J].Chinese Jorunal of Rock Mechanics and Engineering,2007,26(S1):3390-3396.(in Chinese)
• [12]阳生权,周健,吕中玉.不同距离条件下爆破引起的质点振动频幅分析[J].地下空间与工程学报,2007,3(4):637-641.[12]YANG Sheng-quan,ZHAO Jian,LüZhong-yu.Amplitudefrequency analysis of particle vibration with blasting at different distance[J].Chinsesees Journal of Underground Space and Engineering,2007,3(4):637-641.(in Chinese)
• [13]曹孝君,张继春,吕和林.隧道掘进爆破引起地表震动的数值模拟与现场监测分析[J].中国公路学报,2007,20(2):87-91.[13]CAO Xiao-jun,ZHANG Ji-chun,LüHe-lin.Numerical simulation and field monitoring analysis on surface vibration resulted form tunnel driving blasting[J].China Journal of Highway and Transport,2007,20(2):87-91.(in Chinese)
• [14]HSIN YU LOW,HONG HAO.Reliability analysis of reinforced concrete slabs under explosive loading[J].Structural Safety,2001,23:157-178.
• [15]喻军,刘松玉,童立元.浅埋隧道爆破振动空洞效应[J].东南大学学报(自然科学版),2010,40(1):176-179.[15]YU Jun,LIU Song-yu,TONG Li-yuan.Holloew effect induced by blasting vibration in shallow tunnels[J].Journal of Southeast University(Natural Science Edition),2010,40(1):176-179.(in Chinese)