水耦合装药爆破在隧道掘进中的应用
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摘要
在分析水介质耦合装药结构特点的基础上,根据爆破动力学原理,应用弹性理论和波动理论推导了正入射情况下孔壁岩面上的冲击压力、应力波衰减规律。为了解水耦合装药爆破对岩石的破坏过程,采用有限元软件ANSYS-LSDANA对工程实例进行了数值模拟,并采用数值模拟中的爆破参数进行了现场试验。结果表明:水介质的耦合作用不仅有利于炮孔底部岩石破碎,而且加快了施工进度、改善了施工环境,达到安全增效、降耗的目的。该方法可为其他隧道爆破提供参考,具有重要的推广和应用价值。
Based on the analysis of characteristics of water-couple charge structure,according to the blasting dynamics theory,by applying the elastic theory and fluctuating theory,the shock pressure on the rock of hole wall in case of normal incidence and the law of stress wave degradation were deduced.In order to understand the damage process of rock water-couple blasting,using finite element software ANSYS-LSDANA,a numerical simulation for actual project was carried out and the blasting parameters of numerical simulation were used for field test.The result shows that the water couple charge was not only beneficial for bottom rock breakage,it also accelerated the construction progress and improved the construction environment,achieved the goal of safety with efficiency and reducing consumption.It can provide reference for other tunnel blasting and have an important value of application and promotion.
Based on the analysis of characteristics of water-couple charge structure,according to the blasting dynamics theory,by applying the elastic theory and fluctuating theory,the shock pressure on the rock of hole wall in case of normal incidence and the law of stress wave degradation were deduced.In order to understand the damage process of rock water-couple blasting,using finite element software ANSYS-LSDANA,a numerical simulation for actual project was carried out and the blasting parameters of numerical simulation were used for field test.The result shows that the water couple charge was not only beneficial for bottom rock breakage,it also accelerated the construction progress and improved the construction environment,achieved the goal of safety with efficiency and reducing consumption.It can provide reference for other tunnel blasting and have an important value of application and promotion.
引文
[1]周游,程康,陈世华.空气间隔装药技术在水布垭地下厂房开挖中的应用[J].爆破,2005,22(2):56-57.(Zhou You,Cheng Kang,Chen Shihua.Appli-cation of air-decked charge in the excavation forShuibuya underground workshop[J].Blasting,2005,22(2):56-57.(in Chinese))
[2]朱荣华,林云,徐学勇,等.空气间隔装药光面爆破技术探讨[J].爆破,2004,21(3):32-33.(ZhuRonghua,Lin Yun,Xu Xueyong,et al.Analysis ofsmooth blasting technology for air-deck charge[J].Blasting,2004,21(3):32-33.(in Chinese))
[3]吴亮,钟冬望,蔡路军.空气间隔装药中光面爆破机理数值分析[J].武汉理工大学学报,2009,31(16):78-81.(Wu Liang,Zhong Dongwang,Cai Lu-jun.Numerical simulation of the mechanism for air-decked smooth blasting[J].Journal of Wuhan Univer-sity of Technology,2009,31(16):78-81.(in Chi-nese))
[4]朱礼臣,孙咏.深孔水耦合爆破开挖沟槽[J].工程爆破,2000,6(2):67-69.(Zhu Lichen,Sun Yong.Digging of a trench by water-coupled long-hole blasting[J].Engineering Blasting,2000,6(2):67-69.(inChinese))
[5]张明旭,尚辉,甘德清.露天边坡含水炮孔预裂爆破试验研究[J].有色矿山,2002,31(3):8-10.(Zhang Mingxu,Shang Hui,Gan Deqing.Study of pre-splitting blasting experiment in water-bearing blast holeof open pit slope[J].2002,31(3):8-10.(in Chi-nese))
[6]吴文根,李金祥.水介质控制爆破在巷道掘进中的试验应用[J].有色金属(矿山部分),2003,(5):20-21.(Wu Wengen,Li Jinxiang.Experimental studyand application on control blasting with water coupledcharge in tunneling[J].Nonferrous Metal(mine vol-ume),2003,(5):20-21.(in Chinese))
[7]王志亮,李永池.工程爆破中径向水不耦合系数效应数值仿真[J].岩土力学,2005,26(12):1926-1 930.(Wang Zhiliang,Li Yongchi.Numerical simu-lation on effects of radial water-decoupling coefficient inengineering blast[J].Rock and Soil Mechanics,2005,26(12):1 926-1 930.(in Chinese))
[8]宗琦,李永池,徐颖.炮孔水耦合装药爆破孔壁冲击压力研究[J].水动力学研究与进展,2004,19(5):610-615.(Zong Qi,Li Yongchi,Xu Ying.Pre-liminary discussion on shock pressure on hole wall whenwater couple charge blasting in the hole[J].Journal ofHydrodynamics,2004,19(5):610-615.(in Chi-nese))
[9]宗琦,孟德君.炮孔不同炸药结构对爆破能量影响的理论探讨[J].岩石力学与工程学报,2003,22(4):641-645.(Zong Qi,Meng Dejun.Influence ofdifferent kinds of hole charging structure on explosionenergy transmission[J].Chinese Journal of Rock Me-chanics and Engineering,2003,22(4):641-645.(inChinese))
[10]蔡美峰.岩石力学与工程[M].北京:科学出版社,2006.(Cai Meifeng.Rock mechanics and engineering[M].Beijing:Science Press,2006.(in Chinese))
[11]唐飞勇,胡锐,赵明生,等.双因素判据在爆破地震监测中的应用[J].爆破,2008,25(2),89-91.(TangFeiyong,Hu Rui,Zhao Mingsheng,et al.Applicationof Two-factor criterion in blasting seismic monitoring[J].Blasting,2008,25(2),89-91.(in Chinese)
[2]朱荣华,林云,徐学勇,等.空气间隔装药光面爆破技术探讨[J].爆破,2004,21(3):32-33.(ZhuRonghua,Lin Yun,Xu Xueyong,et al.Analysis ofsmooth blasting technology for air-deck charge[J].Blasting,2004,21(3):32-33.(in Chinese))
[3]吴亮,钟冬望,蔡路军.空气间隔装药中光面爆破机理数值分析[J].武汉理工大学学报,2009,31(16):78-81.(Wu Liang,Zhong Dongwang,Cai Lu-jun.Numerical simulation of the mechanism for air-decked smooth blasting[J].Journal of Wuhan Univer-sity of Technology,2009,31(16):78-81.(in Chi-nese))
[4]朱礼臣,孙咏.深孔水耦合爆破开挖沟槽[J].工程爆破,2000,6(2):67-69.(Zhu Lichen,Sun Yong.Digging of a trench by water-coupled long-hole blasting[J].Engineering Blasting,2000,6(2):67-69.(inChinese))
[5]张明旭,尚辉,甘德清.露天边坡含水炮孔预裂爆破试验研究[J].有色矿山,2002,31(3):8-10.(Zhang Mingxu,Shang Hui,Gan Deqing.Study of pre-splitting blasting experiment in water-bearing blast holeof open pit slope[J].2002,31(3):8-10.(in Chi-nese))
[6]吴文根,李金祥.水介质控制爆破在巷道掘进中的试验应用[J].有色金属(矿山部分),2003,(5):20-21.(Wu Wengen,Li Jinxiang.Experimental studyand application on control blasting with water coupledcharge in tunneling[J].Nonferrous Metal(mine vol-ume),2003,(5):20-21.(in Chinese))
[7]王志亮,李永池.工程爆破中径向水不耦合系数效应数值仿真[J].岩土力学,2005,26(12):1926-1 930.(Wang Zhiliang,Li Yongchi.Numerical simu-lation on effects of radial water-decoupling coefficient inengineering blast[J].Rock and Soil Mechanics,2005,26(12):1 926-1 930.(in Chinese))
[8]宗琦,李永池,徐颖.炮孔水耦合装药爆破孔壁冲击压力研究[J].水动力学研究与进展,2004,19(5):610-615.(Zong Qi,Li Yongchi,Xu Ying.Pre-liminary discussion on shock pressure on hole wall whenwater couple charge blasting in the hole[J].Journal ofHydrodynamics,2004,19(5):610-615.(in Chi-nese))
[9]宗琦,孟德君.炮孔不同炸药结构对爆破能量影响的理论探讨[J].岩石力学与工程学报,2003,22(4):641-645.(Zong Qi,Meng Dejun.Influence ofdifferent kinds of hole charging structure on explosionenergy transmission[J].Chinese Journal of Rock Me-chanics and Engineering,2003,22(4):641-645.(inChinese))
[10]蔡美峰.岩石力学与工程[M].北京:科学出版社,2006.(Cai Meifeng.Rock mechanics and engineering[M].Beijing:Science Press,2006.(in Chinese))
[11]唐飞勇,胡锐,赵明生,等.双因素判据在爆破地震监测中的应用[J].爆破,2008,25(2),89-91.(TangFeiyong,Hu Rui,Zhao Mingsheng,et al.Applicationof Two-factor criterion in blasting seismic monitoring[J].Blasting,2008,25(2),89-91.(in Chinese)
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