为了解决战场上开挖单人掩体费时费力的问题,研究采用分段装药、延期爆破的方法快速构筑单人掩体,采用AUTODYN软件,建立不同延期时间、上部装药量、下部装药量共9个模型,通过对比计算得到的爆破漏斗尺寸,发现爆破漏斗的尺寸和上、下部装药量呈正相关,爆破漏斗的尺寸和延期时间有关,延期时间50 ms爆破时产生的炸坑体积最大,并通过爆破实验的方式对爆破模型模拟的情况进行了验证,实验得到的数据和计算得到数据较为符合,通过调整隔爆层长度发现两段装药隔爆长度在50 cm以下时可能会发生殉爆现象。
Abstract
In order to solve the time-consuming and laborious problem of digging a single-person bunker on the battlefield,the method of subsection charging and delayed blasting was adopted to quickly build a single-person bunker. AUTODYN software was used to establish a total of 9 models with different delay time,upper charging amount and lower charging amount. The calculated sizes of blasting funnel were compared. The result shows that the size of the blasting funnel was positively correlated with the charge of the upper and lower parts,and the size of the blasting funnel was related to the delay time. The largest volume of the pit is generated when the delay time is 50 ms. The simulation of the blasting model was verified by blasting experiment. The experimental data are in good agreement with the calculated data. By adjusting the length of the flameproof layer,it is found that the sympathetic detonation may occur when the flameproof length of two sections of charge is less than 50 cm.
关键词
单人掩体 /
装药条件 /
爆破模拟 /
延期爆破
{{custom_keyword}} /
Key words
single-person bunker /
charge conditions /
blasting simulation /
delayed blasting
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 科技卫生出版社编辑部. 工事构筑和伪装[M]. 上海:科技卫生出版社,1958:1-2.
Editorial Department of Science and Technology Health Press. Fortifications construction and Camouflage[M]. Shanghai:Science and Technology Health Press,1958:1-2.(in Chinese)
[2]万平. 有爆破法开设单人掩体[J]. 现代兵种,1996(11):43.
WAN Ping. Construction of single man shelter by blasting[J]. Modern Arms,1996(11):43.(in Chinese)
[3]周文海. 露天矿深孔台阶爆破逐孔起爆延期时间的选取研究[D]. 福州:福州大学,2016.
Zhou Wenhai. The summary of open pit deep hole bench blasting about hole by hole initiation of delay time selection.[D]. Fuzhou:Fuzhou University,2016.(in Chinese)
[4]崔新男,汪旭光,陈何,等. 束状孔双分层孔内延期爆破试验研究[J]. 有色金属(矿山部分),2019,71(02):82-85.
CUI Xinnan,WANG Xuguang,CHEN He,et al. Experimental research on bunch-hole double sublevels in-hole delay blasting[J]. Nonferrous Metals(Mining Part),2019,71(2):82-85.(in Chinese)
[5]高文学,杨军,肖鹏飞,等. 基于精确延期的深孔控制爆破技术[J]. 煤炭学报,2011,36(S2):386-390.
GAO Wenxue,YANG Jun,XIAO Pengfei,et al. Deep-hole controlled blasting technology based on precise time delay[J]. Journal of China Coal Society,2011,36(S2):386-390.(in Chinese)
[6]韩涛,郭伟平,上官洲境,等. 数码电子雷管在隧道爆破开挖中的应用[J]. 施工技术,2020,49(21):85-87.
HAN Tao,GUO Weiping,SHANGGUAN Zhoujing,et al Application of digital electronic detonator in tunnel blasting excavation[J]. Construction Technology,2020,49(21):85-87.(in Chinese)
[7]李世超,黄瑞源,李东海,等. 水下爆炸冲击波对圆柱形壳体结构叠加效应的数值模拟[J]. 弹道学报,2018,30(4):59-65.
LI Shichao,HUANG Ruiyuan,LI Donghai,et al. Numerical simulation of superposition effect of underwater explosion shock wave on cylindrical shell structure[J]. Journal of Ballistics,2018,30(4):59-65.(in Chinese)
[8]TATSUYA H,GENTO M,KOU Shaoquan. Optimum delay interval design in delay blasting[J]. Fragblast,2000,4(2):139-148
[9]SONG J U,PARK H,KIM S K. Comparative study on the maximum principal strain due to the hole spacing and the detonation delay time in the long-hole blasting[J]. Explosives and Blasting,2014,32(3):10-17.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
