Investigate on shock acceleration of concrete at depths of burst
MU Chao-min1, 2, 3, REN Huiqi4，SHI Biming1
1.School of Energy Resources and Safety, Anhui University of Science and Technology, Huainan 232001, Anhui, China;
2.Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China
3.Key Lab of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Huainan 232001, Anhui, China；
4. The Third Research Instituteof Engineers of the General Staff，Luoyang，Henan 471023，China
In order to investigate acceleration of concrete at different scaling depths burst (SDOB), the empirical formulate of impact acceleration are deduced by using combination of free field experiment and dimensional analysis that is inducted by DOB coefficient of equivalent yield. The results show that when SDOB is form 0.25 m/kg1/3 to 1.0m/kg1/3, impact acceleration of C30 concrete under blasting point increase with SDOB, but attenuation of shock acceleration of concrete are in agreement at different SDOB. Towards different concrete strength, impact acceleration increase with concrete strength enhancing, and attenuation of acceleration is in concert. The obtained empirical formulate of C30 concrete have high degree of accuracy to predict shock acceleration laws.
穆朝民1, 2, 3，任辉启4，石必明1. 变埋深条件下混凝土中爆炸加速度的传播规律[J]. 振动与冲击, 2016, 35(3): 1-6.
MU Chao-min1, 2, 3, REN Huiqi4，SHI Biming1. Investigate on shock acceleration of concrete at depths of burst. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(3): 1-6.
[1]U.S. Department of the Army. Fundamentals of protective design for conventional weapons[R]. Washington，D.C.：U.S. Department of theArmy，1986.
[2] U.S. Department of the Army，Navy and Air Force. Structures to resist the effects of accidental explosions[R]. Washington，D.C.：U.S.Department of the Army，Navy and Air Force，1990.
[3]WESTINE P S,FRIESENHAHN G J. Free-field ground shock pressures from buried detonations in saturated and unsaturated soils[C]// Proceedings of the 1st International Symposium on the Interaction of Non-nuclear Munitions with Structures. San Antonio：[s.n.],1983：216–227.
[4] 穆朝民，任辉启，辛凯，等. 变埋深条件下土中爆炸成坑效应[J]. 解放军理工大学学报（自然科学版），2010，11（2）：112-116.（Mu Chaomin，Ren Huiqi，Xin Kai，et al. Effects of crater formed by explosion in soils [J]. Journal of University of Science and Technology（Natural Science Edition），2010，11（2）：112-116.）
[5] 穆朝民，任辉启，李永池，等. 爆炸波在高饱和度饱和土中传播规律的研究[J]. 岩土力学，2010，31（3）：875-880.(Mu Chaomin，Ren Huiqi，Li Yongchi，et al. Propagation laws of blast wave in saturated soils with high saturation degree[J]. Rock and Soil Mechanics，2010，31（3）：875-880.)
[6] 穆朝民，任辉启，李永池，等. 变埋深条件下饱和土爆炸能量耦合系数的试验研究[J]. 岩土力学，2010，31（5）：1574-1578.（Mu Chaomin，Ren Huiqi，Li Yongchi，et al. Experiment study of explosion energy coupling coefficient with different burial depths in saturated soils[J]. Rock and Soil Mechanics，2010，31（5）：1574-1578.）
[7] 穆朝民，齐娟，辛凯. 高饱和度饱和土中爆炸波与结构的相互作用[J]. 岩土力学，2011，32（2）：429-434.（Mu Chaomin，Qi Juan，Xin Kai. Interaction between blast wave and structure in highly saturated soil[J]. Rock and Soil Mechanics，2011，32（2）：429-434.）
[8] 穆朝民，齐娟，辛凯. 高饱和度饱和土中结构对爆炸波反射规律的实验研究[J]. 振动与冲击，2010，29（5）：224-253. （Mu Chaomin，Qi Juan，Xin Kai. Experimental studies on reflection law of blast wave on a structure in highly saturated soil[J]. Journal of Vibration and Shock，2010，29（5）：224-253.）
[9] 宋浦，顾晓辉，王晓鸣，等. 混凝土中的爆坑实验研究[J]. 火炸药学报，2005，28（2）：60-62.（Song Pu，Gu Xiaohui，Wang Xiaoming，et al. Experimental investigation on cratering of concrete[J]. Chinese Journal of Explosives & Propellants，2005，28（5）：60-62.）
[10] 叶亚齐，任辉启，李永池，等. 砂质黏土中不同深度爆炸自由场地冲击参数预计方法研究[J]. 岩石力学与工程学报，2011，30（9）：1918-1923.（Ye Yaqi，Re Huiqi，Li Yongchi，et al. Study of prediction of ground shock parameters in free field at different depths of burst in sandy clay[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30（9）：1918-1923.）
[11] 何翔，吴祥云，李永池，等. 石灰岩中爆炸成坑和地冲击传播规律的试验研究[J]. 岩石力学与工程学报，2004，23（5）：725-729.（He Xiang，Wu Xiangyun，Li Yongchi，et al. Testing study on crater formed by explosion and propagation laws of ground shock in limestone[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23（5）：725-729.）
[12] 赵红玲，侯爱军，董怀峰，等. 石灰岩中不同埋深爆炸自由场直接地冲击参数的预计方法[J]. 爆炸与冲击，2011，31（3）：290-294.（Zhao Hongling，Hou Aijun，Dong Huaifeng，et al. Prediction method of the direct ground shock parameters of explosion
at different buried depths in free field of limestone[J]. Explosion and Shock Waves，2011，31（3）：290-294.）
[13] 施鹏，邓国强，杨秀敏，等. 土中爆炸地冲击能量分布研究[J]. 爆炸与冲击，2006，26（3）：240-244.（Shi Peng，Deng Guoqiang，Yang Xiumin，et al. Study on ground shock energy distribution of explosion in soil[J]. Explosion and Shock Waves，2006，26（3）：240-244.）
[14] 施鹏，辛凯，杨秀敏，等. 土中装药不同埋深爆炸试验研究[J]. 工程力学，2006，23（12）：171-174.（Shi Peng，Xin Kai，Yang Xiumin，et al. Experimental study of explosion with different burial depths in soil[J]. Engineering Mechanics，2006，23（12）：171-174.）
[15] 谈庆明. 量纲分析[M]. 合肥：中国科学技术大学出版社，2007：99–129.(TAN Qingming. Dimensional analysis[M]. Hefei：University ofScience and Technology of China Press，2007：99 –129.(in Chinese)
