结构中爆炸泄入坑道工程内部空气冲击波传播试验研究
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摘要
目前结构中不同侵彻深度爆炸研究主要集中于结构的震塌破坏,而对结构毁伤后的泄漏冲击波效应研究极为有限。为获得结构毁伤后泄漏冲击波传播特性,针对装药量、埋深、钢筋配筋率、混凝土基体强度和有无结构等影响因素共进行了48次试验,揭示了这些影响因素对泄漏空气冲击波超压强度的影响规律。
At present,the research on explosion with different penetration depths in structures is mainly focused on spallation of structures,while the research on the effect of residual air shock wave after structural damage is quite limited. In order to obtain the propagation characteristics of residual shock wave after structural damage,48 tests have been carried out on the influence factors of charge weight,burst depth,steel reinforcement ratio,basic strength of concrete and the presence or absence of the structure,etc.,revealing the influence law of these influential factors on the residual air shock wave overpressure.
At present,the research on explosion with different penetration depths in structures is mainly focused on spallation of structures,while the research on the effect of residual air shock wave after structural damage is quite limited. In order to obtain the propagation characteristics of residual shock wave after structural damage,48 tests have been carried out on the influence factors of charge weight,burst depth,steel reinforcement ratio,basic strength of concrete and the presence or absence of the structure,etc.,revealing the influence law of these influential factors on the residual air shock wave overpressure.
引文
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[8]廖真,唐德高,薛宇龙.坑道防护门破坏后泄漏冲击波传播规律的数值模拟[J],防护工程,2017,39(1):34-39.
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[2]段卓平,张海英,申健,等.内部爆炸作用下混凝土靶背面临界震塌条件[J],北京理工大学学报,2016,36(2):133-136.
[3]岳松林,王明洋,张宁.混凝土板在接触爆炸作用下的震塌和贯穿临界厚度计算方法[J],爆炸与冲击,2016,36(4):472-481.
[4]胡金生,杨科之,董军,等.钢筋混凝土结构震塌计算中的材料影响系数研究[J],防护工程,2016,38(3):35-38.
[5]何翔,王励自,李茂生,等.空气冲击波沿坑道传播的工程计算模型[J],防护工程,2003,23(4):19-23.
[6]杨科之,杨秀敏.坑道内化爆冲击波的传播规律[J],爆炸与冲击,2003,23(1):37-40.
[7]郑颖人,李秀地.防护门破坏后泄漏冲击波传播规律的试验[J],解放军理工大学学报:自然科学版. 2007,8(5):409-412.
[8]廖真,唐德高,薛宇龙.坑道防护门破坏后泄漏冲击波传播规律的数值模拟[J],防护工程,2017,39(1):34-39.
[9]王晋平.深层坚固目标毁伤评估若干问题研究[D],北京:北京理工大学,2015.
[10]袁辉,王凤山.坑道工程动荷段抗精确打击毁伤分析系统[J].计算机应用,2012,32(9):2667-2671.