浅水爆炸下高桩钢管柱表面作用荷载实验研究

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Abstract Taking a steel pipe column of high pile as the study object, underwater explosion model tests were conducted under different conditions including different explosive quantities, explosion distances and detonation depths. Characteristics and spatial distributions of explosion pressure on steel pipe column surface under shallow water explosion were studied. Effects of proportional explosion distances on peak value of shock wave and spatial distribution were analyzed. Reflection coefficient, diffraction one of steel pipe column surface shock wave and the engineering calculation method for actual shock wave acting on the column surface in anti-blast design were deduced. The study results showed that under action of underwater explosion, reflection shock wave and diffraction one act almost simultaneously on steel pipe column surface, and their peaks are non-uniformly distributed in direction of pipe column height; free water surface has less effects on shock wave, but it has larger effects on the secondary bubble pulsation; peak values of reflection and diffraction shock waves increase with increase in explosive quantities and decrease in explosion distances; if proportional explosion distance and reflection shock wave peak value keep unchanged, diffraction shock wave peak value is smaller when explosive quantities and explosion distance are smaller; steel pipe column surface’s shock wave reflection coefficient and diffraction one decrease with increase in proportional explosion distances; when proportional explosion distance is greater than 1.71, the actual shock wave acting on steel pipe column surface can be calculated approximately according to 1.37 times of free field shock wave peak value.

Key words： underwater explosion steel pipe column of high pile reflection shock wave diffraction shock wave load distribution

Received: 08 May 2019 Published: 28 December 2019

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	Articles by authors
	ZHUANG Tieshuan1
	2
	WANG Mingyang1
	WU Jun2
	ZHANG Tao2
	YANG Chengyu2
	YAN Minhua2

Cite this article:

ZHUANG Tieshuan1,2,WANG Mingyang1, et al. Tests for surface loading of high pile steel pipe column under shallow water explosion[J]. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(1): 70-78.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2020/V39/I1/70

[1] JTS167-4-2012《港口工程桩基规范》
[2] Cole R H. Underwater explosions [M]. New Jer sey: Princeton University Press, 1948.
[3] Zamyshlyaev B, Yakovlev Yu S. Dynamic loads in underwater explosion[R].AD-757183,1973(2).
[4] 亨里奇•J. 爆炸动力学及其应用[M]. 熊建国等译. 北京: 科学出版社, 1987.
    J.Henrych. The dynamics of explosion and its use [M]. Translated by XIONG Jianguo. Beijing: Science Press, 1987.
[5] 冯晓军,韦国平,徐洪涛,等.Al/AP对RDX基复合炸药水中爆炸参数的影响[J].火炸药学报,2012,35(4):10-15.
FENG Xiaojun, WEI Guoping, XU Hongtao, et al. Influence of AI/AP on the underwater explosion parameters of RDX-based composite explosives[J].Chinese Journal of Explosive＆Propellants,2012,35(4):10-15.
[6] 池家春,马冰. TNT/RDX（40/60）炸药球水中爆炸波研究[J].高压物理学报,1999,13(3):199-204.
CHI Jiachun, Ma Bing. Underwater explosion wave by spherical charge of composition [J].Chinese Journal of High Pressure Physics, 1999, 13(3):199-204.
[7] 周霖,徐少辉,徐更光.炸药水下爆炸能量输出特性研究[J].兵工学报,2006,27(2):235-238.
ZHOU Lin, XU Shaohui, XU Gengguang, et al. Research on energy output characteristics for underwater explosion of explosives [J]. Acta Actaarmamentarii, 2006, 27(2):235-238.
[8] 赵根,季荣,郑晓宁,等.乳化炸药水中爆炸冲击波传播规律实验研究[J].爆破,2011,28(2):1-4.
ZHAO Gen, JI Rong, ZHENG Xiaoning, et al. Experimental investigation on propagation rule of shock wave by emulsion explosives underwater blasting [J].Blasting, 2011, 28(2):1-4.
[9] 宋浦,肖川,梁安定,等.不同起爆方式对TNT水中爆炸作用的影响[J].火炸药学报,2008,31(2):75-78.
   SONG Pu , XIAO Chuan, LIANG Anding , et al. Effect of different initiating modes on TNT underwater explosion [J]. Chinese journal of explosives＆propellants,2008,31(2):75-78.
[10] 金辉,李兵,权琳,等.不同边界条件下炸药水中爆炸的能量输出结构[J].爆炸与冲击,2013,33(3): 325-329.
Jin Hui , Li Bing, Quan Lin, et al. Configuration of explosive energy output in different underwater boundary conditions[J].  Explosion and Shock Waves, 2013, 33 (3): 325-329.
[11] 杨莉,汪玉,汪彬,等.沉底装药水中爆炸现象的实验研究[J].爆炸与冲击,2013,33(3):175-180.
Yang Li, Wang Yu, Wang Bin,et al. Experimental investigation on loading characteristics of underwater explosion from a   bottom charge [J]. Explosion and Shock Waves, 2013, 33(3):175-180.
[12] 项大林,荣吉利,李健,等.金属壳体炸药水下爆炸的冲击波特性[J].爆炸与冲击,2012,32(1):67-72.
XIANG Dalin, RONG Jili, LI Jian, et al. Shock wave features of underwater explosion of explosives with metal shell [J].Explosion and Shock Waves, 2012, 32(1):67-72
[13] 韦灼彬, 唐廷, 王立军.港口水下爆炸荷载冲击特性研究[J].振动与冲击,2014,33(6):18-25.
WEI Zhuobin, TANG Ting, WANG Lijun. Shock characteristics of underwater explosion in port [J].Journal of vibration and  Shock, 2014, 33(6):18-25.
[14] 顾文彬,郑向平,刘建青,等.浅层水中爆炸冲击波对混凝土墩斜碰撞作用实验研究[J].爆炸与冲击,2006,26(4):361-366.
GU Wenbin, ZHENG Xiangping, LIU Jianqing, et al. Experimental investigation of the oblique collision effects of explosion shock wave on concrete frustum in shallow water [J]. Explosion and Shock Waves, 2006, 26(4):361-366.