盾构隧道孤石预爆破地表质点峰值振速衰减公式
|
摘要
为了解决盾构隧道孤石预爆破中,不同炸药的性质和药包埋深对质点峰值振动速度的影响,对岩石爆破中地表质点峰值振动速度衰减公式进行了改进,基于叠加原理获得能同时考虑装药结构、岩性特性参数等影响因素的长柱药包峰值振动速度公式,并通过工程实例验证了该公式的有效性。结果表明:长柱形装药地下爆破引起的峰值振动速度不仅受测点与爆源距离影响,也受到装药结构的影响;在装药长度不变条件下,长柱药包的埋深对与爆心水平距离25m范围内峰值振动速度影响较大,超出25m范围受到的振动影响程度趋于一致。
In order to solve the influence of the properties of different explosives and the burial depth on the peak vibration velocity of the particle in the pre-blasting tunnel boulder,the attenuation formula of the peak velocity of the surface particle in rock blasting was improved.Based on the superposition principle,charge structure,and lithological characteristics of the rockburst,the vibration velocity formula of the long pillar was also given.The results showed that the peak vibration velocity of the long columnar charge was not only affected by the distance between the measured point and the burst source,but also by the structure of the charge.Under the same charge length,the depth of the long cylindrical charge 25 min the range of the impact on the peak vibration velocity was greater,the impact on vibration was basically the same over 25 m.
In order to solve the influence of the properties of different explosives and the burial depth on the peak vibration velocity of the particle in the pre-blasting tunnel boulder,the attenuation formula of the peak velocity of the surface particle in rock blasting was improved.Based on the superposition principle,charge structure,and lithological characteristics of the rockburst,the vibration velocity formula of the long pillar was also given.The results showed that the peak vibration velocity of the long columnar charge was not only affected by the distance between the measured point and the burst source,but also by the structure of the charge.Under the same charge length,the depth of the long cylindrical charge 25 min the range of the impact on the peak vibration velocity was greater,the impact on vibration was basically the same over 25 m.
引文
[1]竺维彬,黄威然,孟庆彪,等.盾构工程孤石及基岩侵入体爆破技术研究[J].现代隧道技术,2011,48(5):12-17.ZHU Wei-bin,HUANG Wei-ran,MENG Qing-biao,et al.Research on controlled blasting technology for boulders and invading bedrock in shield construction[J].Modern Tunnelling Technology,2011,48(5):12-17.
[2]路耀邦,刘洪震,游永锋,等.海底盾构隧道孤石爆破预处理关键技术[J].现代隧道技术,2012,49(5):117-122.LU Yao-bang,LIU Hong-zhen,YOU Yong-feng,et al.Keytechniques for the pretreatment of boulder blasting in an under-sea shield-driven tunnel[J].Modern Tunnelling Technology,2012,49(5):117-122.
[3]黄力平.地铁盾构施工遇花岗岩风化球的处理对策及关键技术[J].土工技术,2012,26(4):1-4.HUANG Li-ping.Metro construction using shielded tunneling in unweathered granite boulder zones[J].Soil Engineering and Foundation,2012,26(4):1-4.
[4]何强,穆大耀,杨通国.孤石爆破安全技术的研究[J].矿冶,2014,23(1):31-33.HE Qiang,MU Da-yao,YANG Tong-guo,et al.MU-da-yao study on safety techniques of boulder blasting[J].Mining&Metallurgy,2014,23(1):31-33.
[5]易长平,冯林,王刚,等.爆破振动预测研究综述[J].现代矿业,2011(5):1-5.YI Chang-ping,FENG Lin,WANG Gang,et al.A review of research on blasting vibration prediction[J].Modern Mining,2011(5):1-5.
[6]MANOJ K,T N.Singh evaluation of blast-induced ground vibration predictors[J].Soil Dynamics and Earthquake Engineering,2007(27):116-125.
[7]卢文波,HUSTRULID W.质点峰值振动速度衰减公式的改进[J].工程爆破,2002,8(3):1-4.LU Wen-bo,HUSTRULID W.An improvement to the equation for the attenuation of the peak particle velocity[J].Engineering Blasting,2002,8(3):1-4.
[8]宋光明,陈寿如,史秀志.露天矿边坡爆破振动监测与评价方法的研究[J].有色金属:矿山部分,2000(4):24-27.SONG Guang-ming,CHEN Shou-ru,SHI Xiu-zhi.Study on monitoring and evaluation method of blasting vibration of slope blasting in open pit mine[J].Nonferrous Metals:Mining Section,2000(4):24-27.
[9]刘美山,吴从清,张正宇.小湾水电站高边坡爆破震动安全判据试验研究[J].长江科学院院报,2007,24(1):40-43.LIU Mei-shan,WU Cong-qing,ZHANG Zheng-yu,et al.Experimentation on judging standard of blasting vibration safetyin high slope excavation of Xiaowan hydropower station[J].Journal of Yangtze River Scientific Research Institute,2007,24(1):40-43.
[10]许海亮,张继春,杨红,等.钻孔爆破振动速度计算公式及其简化的探讨[J].同济大学学报(自然科学版),2007,35(7):899-903.XU Hai-liang,Zhang Ji-chun,YANG Hong,et al.Investigation on calculating formula of vibration velocity in drilling blasting and its simplification[J].Journal of Tongji University:Natural Science,2007,35(7):899-903.
[11]唐廷,王明洋,葛涛.地下爆炸的地表运动研究[J].岩石力学与工程学报,2007,26(S1):3 528-3 532.TANG Ting,WANG Ming-yang,GE Tao.Study on ground movement of underground explosions[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(S1):3 528-3 532.
[12]程康,沈伟,陈庄明,等.工程爆破引起的振动速度计算经验公式及应用条件探讨[J].振动与冲击,2011,30(6):127-129.CHENG Kang,SHEN Wei,CHEN Zhuang-ming,et al.Inquiry into calculation formula for vibration velocity induced by engineering blasting and its application conditions[J].Journal of Vibration and Shock,2011,30(6):127-129.
[13]吴建,陈士海.长柱药包爆破振动位移特性研究[J].工程爆破,2014,20(5):50-54.WU Jian,CHEN Shi-hai.Study on the displacement characteristics of blasting vibration about long cylindrical charge[J].Engineering Blasting,2014,20(5):50-54.
[14]孙海利.基于ANSYS/Ls-dyna仿真模拟对条形药包爆破地震效应的研究[D].西安:长安大学,2015.SUN Hai-li.The study of linear charge blasting seismic effect based on ANSYS/Ls-dyna simulation[D].Xi'an:Chang'an University,2015.
[15]江向阳,颜事龙,刘伟,等.柱状药包爆炸波传播规律的试验分析[J].重庆大学学报,2015,38(4):121-127.JIANG Xiang-yang,YAN Shi-long,LIU Wei,et al.Experimental analysis of the law of explosive wave of cylindrical charge[J].Journal of Chongqing University,2015,38(4):121-127.
[16]国家安全生产监督管理.爆破安全规程:GB 6722-2014[S].北京:中国标准出版社,2014.State Administration of Work Safety.Safety regulations for blasting:GB 6722-2014[S].Beijing:China Standards Press,2014.
[2]路耀邦,刘洪震,游永锋,等.海底盾构隧道孤石爆破预处理关键技术[J].现代隧道技术,2012,49(5):117-122.LU Yao-bang,LIU Hong-zhen,YOU Yong-feng,et al.Keytechniques for the pretreatment of boulder blasting in an under-sea shield-driven tunnel[J].Modern Tunnelling Technology,2012,49(5):117-122.
[3]黄力平.地铁盾构施工遇花岗岩风化球的处理对策及关键技术[J].土工技术,2012,26(4):1-4.HUANG Li-ping.Metro construction using shielded tunneling in unweathered granite boulder zones[J].Soil Engineering and Foundation,2012,26(4):1-4.
[4]何强,穆大耀,杨通国.孤石爆破安全技术的研究[J].矿冶,2014,23(1):31-33.HE Qiang,MU Da-yao,YANG Tong-guo,et al.MU-da-yao study on safety techniques of boulder blasting[J].Mining&Metallurgy,2014,23(1):31-33.
[5]易长平,冯林,王刚,等.爆破振动预测研究综述[J].现代矿业,2011(5):1-5.YI Chang-ping,FENG Lin,WANG Gang,et al.A review of research on blasting vibration prediction[J].Modern Mining,2011(5):1-5.
[6]MANOJ K,T N.Singh evaluation of blast-induced ground vibration predictors[J].Soil Dynamics and Earthquake Engineering,2007(27):116-125.
[7]卢文波,HUSTRULID W.质点峰值振动速度衰减公式的改进[J].工程爆破,2002,8(3):1-4.LU Wen-bo,HUSTRULID W.An improvement to the equation for the attenuation of the peak particle velocity[J].Engineering Blasting,2002,8(3):1-4.
[8]宋光明,陈寿如,史秀志.露天矿边坡爆破振动监测与评价方法的研究[J].有色金属:矿山部分,2000(4):24-27.SONG Guang-ming,CHEN Shou-ru,SHI Xiu-zhi.Study on monitoring and evaluation method of blasting vibration of slope blasting in open pit mine[J].Nonferrous Metals:Mining Section,2000(4):24-27.
[9]刘美山,吴从清,张正宇.小湾水电站高边坡爆破震动安全判据试验研究[J].长江科学院院报,2007,24(1):40-43.LIU Mei-shan,WU Cong-qing,ZHANG Zheng-yu,et al.Experimentation on judging standard of blasting vibration safetyin high slope excavation of Xiaowan hydropower station[J].Journal of Yangtze River Scientific Research Institute,2007,24(1):40-43.
[10]许海亮,张继春,杨红,等.钻孔爆破振动速度计算公式及其简化的探讨[J].同济大学学报(自然科学版),2007,35(7):899-903.XU Hai-liang,Zhang Ji-chun,YANG Hong,et al.Investigation on calculating formula of vibration velocity in drilling blasting and its simplification[J].Journal of Tongji University:Natural Science,2007,35(7):899-903.
[11]唐廷,王明洋,葛涛.地下爆炸的地表运动研究[J].岩石力学与工程学报,2007,26(S1):3 528-3 532.TANG Ting,WANG Ming-yang,GE Tao.Study on ground movement of underground explosions[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(S1):3 528-3 532.
[12]程康,沈伟,陈庄明,等.工程爆破引起的振动速度计算经验公式及应用条件探讨[J].振动与冲击,2011,30(6):127-129.CHENG Kang,SHEN Wei,CHEN Zhuang-ming,et al.Inquiry into calculation formula for vibration velocity induced by engineering blasting and its application conditions[J].Journal of Vibration and Shock,2011,30(6):127-129.
[13]吴建,陈士海.长柱药包爆破振动位移特性研究[J].工程爆破,2014,20(5):50-54.WU Jian,CHEN Shi-hai.Study on the displacement characteristics of blasting vibration about long cylindrical charge[J].Engineering Blasting,2014,20(5):50-54.
[14]孙海利.基于ANSYS/Ls-dyna仿真模拟对条形药包爆破地震效应的研究[D].西安:长安大学,2015.SUN Hai-li.The study of linear charge blasting seismic effect based on ANSYS/Ls-dyna simulation[D].Xi'an:Chang'an University,2015.
[15]江向阳,颜事龙,刘伟,等.柱状药包爆炸波传播规律的试验分析[J].重庆大学学报,2015,38(4):121-127.JIANG Xiang-yang,YAN Shi-long,LIU Wei,et al.Experimental analysis of the law of explosive wave of cylindrical charge[J].Journal of Chongqing University,2015,38(4):121-127.
[16]国家安全生产监督管理.爆破安全规程:GB 6722-2014[S].北京:中国标准出版社,2014.State Administration of Work Safety.Safety regulations for blasting:GB 6722-2014[S].Beijing:China Standards Press,2014.