爆坑尺寸的计算与试验研究Calculation and experimental study of blasting crater size
冯伟涛;徐春平;李夏;
FENG Wei-tao;XU Chun-ping;LI Xia;Army Special Operations College;32302 PLA Units;
摘要(Abstract)：
为了研究爆坑尺寸与爆炸位置和爆炸当量的函数关系,归纳了国内外炸药近地面爆炸成坑效应研究情况,分析了爆炸形成的爆坑尺寸计算公式和适用条件,并将野外爆炸试验的数据与计算公式及相关文献给出的试验结果进行对比,分析了结果偏差所产生的原因。结果表明:爆坑尺寸计算公式需考虑爆炸高度的影响,还应结合一定次数的场地试验来得到不同场地上爆炸成坑尺寸与爆炸当量和爆炸高度的函数关系,并且考虑炸药种类;同时爆坑试验结果离散性大,爆坑尺寸计算公式应采用上下限的形式。
In order to investigate the functional relationship between the blasting crater size and explosive position and explosion equivalent, the research on crater-forming effect of near-ground explosive in home and abroad was summarized. The calculation formula and applicable conditions of the explosion crater size were analyzed. The data of field explosion experiment were compared with results of calculation formula and related literature, and the reason of the result deviation was analyzed. The results show that the influence of explosion height should be considered in the calculation formula of crater size. A certain number of field tests should be combined to obtain the functional relationship between the blasting crater size and the explosion height, and the type of explosive should be considered. Due to the large discreteness of the blasting crater size, the calculation formula of the blasting crater size should be in the form of upper and lower limits.
关键词(KeyWords)：
近地爆炸;爆坑尺寸;爆炸高度;爆炸当量
near-surface explosion;blasting crater size;explosion height;explosion equivalent
基金项目(Foundation):
作者(Authors):
冯伟涛;徐春平;李夏;
FENG Wei-tao;XU Chun-ping;LI Xia;Army Special Operations College;32302 PLA Units;
参考文献(References)：
- [1] 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(2):112-116.MU C M,REN H Q,XIN K,et al.Effects of crater formed by explosion in soils [J].Journal of PLA University of Science and Technology (Natural science edition),2010(2):112-116.
- [2] 岳松林,王德荣,范鹏贤,等.岩土中不同规模爆炸的抛掷成坑效应综述[C]// 中国岩石力学与工程学会.第3届全国工程安全与防护学术会议论文集.武汉,2012:174-180.YUE S L,WANG D R,FAN P X,et al.A review on cratering effects of explosion in soils and rocks [C]// Chinese Society of Rock Mechanics and Engineering.Proceedings of the 3rd National Engineering Safety and Protection Academic Conference.Wuhan,2012:174-180.
- [3] 王维国,陈育民,杨贵,等.湿砂场地爆炸成坑效应的现场试验与数值模拟研究[J].岩石力学与工程学报,2016,35(1):68-75.WANG W G,CHEN Y M,YANG G,et al.Field tests and numerical simulations of blast-induced crater in wet sands [J].Chinese Journal of Rock Mechanics and Engineering,2016,35(1):68-75.
- [4] 陈风云,白春华.近地面爆源爆炸成坑效应的数值模拟研究[J].爆破器材,2016,45(3):31-35.CHEN F Y,BAI C H.Numerical simulation of pit-forming effect of near-surface detonation source [J].Explosive Materials,2016,45(3):31-35.
- [5] KINNEY G F,GRAHAM K J.Explosive shocks in air[M].2nd ed.Springer Verlag,1985:8-10.
- [6] BAKER W E,WESTINE P S,DODGE F T.Similarity methods in engineering dynamics[M].Amsterdam:Elsevier,1991.
- [7] BIBIANA M L,RICARDO D A.Craters produced by underground explosions[J].Mecánica Computacional,2006(25):1 603-1 614.
- [8] BIBIANA M L,DANIEL A,STEEVE C K Y.Evaluating the effect of large and spread explosives loads[J].Mecánica Computacional,2009(28):529-552.
- [9] AMBROSINI R D,LUCCIONI B M,DANESI R F,et al.Size of craters produced by explosive charges on or above the ground surface[J].Shock Waves,2002(12):69-78.
- [10] Department of the Army.Fundamentals of protective design for conventional weapons:TM 5-855-1[S].Department of the Army,Washington,DC,USA,1986.