陈泰年 , 任辉启 , 李素灵 , 等 . 泄压坑道式工房内爆试验与数值模拟研究 [J ] . 兵工学报 , 2023 : 1 - 10 . DOI: 10.12382/bgxb.2023.0480 https://dx.doi.org/10.12382/bgxb.2023.0480 .

CHEN T N , REN H Q , LI S L , et al. Test and numerical research of explosion inside partial confined tunnel structure [J ] . Acta Armamentarii , 2023 : 1 - 10 . DOI: 10.12382/bgxb.2023.0480 https://dx.doi.org/10.12382/bgxb.2023.0480 . (in Chinese)

王启睿 , 张晓忠 , 孔福利 , 等 . 多级穿廊结构坑道口部内爆炸冲击波传播规律的实验研究 [J ] . 爆炸与冲击 , 2011 , 31 ( 5 ): 449 - 454 .

WANG Q R , ZHANG X Z , KONG F L , et al. Shock wave propagation of an explosion inside its entrance to a multi level gallery tunnel [J ] . Explosion and Shock Waves , 2011 , 31 ( 5 ): 449 - 454 . (in Chinese)

孔福利 , 张晓忠 , 王启睿 , 等 . 三种结构形式坑道中空气冲击波传播规律研究 [C ] // 第十四届全国激波与激波管学术会议, 黄山 , 安徽 : 中国力学学会激波与激波管专业学术委员会 , 2010 : 253 - 258 .

KONG F L , ZHANG X Z , WANG Q R , et al. Research on the propagation law of air shock waves in three types of structural forms of tunnels [C ] // Proeeding of the 14th National Conference on Shock Waves and Shock Tubes. Huangshan , Anhui : Chinese Mechanics Society Shock Wave and Shock Tube Professional Academic Committee , 2010 : 253 - 258 . (in Chinese)

穆朝民 , 任辉启 , 李永池 , 等 . 爆炸冲击波在复杂坑道内传播规律的数值研究 [J ] . 爆破器材 , 2008 , 37 ( 5 ): 1 - 4 .

MU C M , REN H Q , LI Y C , et al. Numerical investigation on blast shock wave propagation in the complex tunnel [J ] . Explosive Materials , 2008 , 37 ( 5 ): 1 - 4 . (in Chinese)

时本军 , 穆朝民 , 马海峰 , 等 . 腔体影响全巷道甲烷爆炸冲击波传播的特性 [J ] . 煤炭学报 , 2020 , 45 ( 增刊2 ): 841 - 849 .

SHI B J , MU C M , MA H F , et al. Cavity effect on the characteristics of methane blast wave propagation in the whole roadway [J ] . Journal of China Coal Society 2020 , 45 ( S2 ): 841 - 849 . (in Chinese)

ZHANG X B , SHEN S S , YANG M , et al. Influence of length and angle of bifurcated tunnel on shock wave propagation [J ] . Journal of Loss Prevention in the Process Industries , 2022 , 78 : 104802 . DOI: 10.1016/j.jlp.2022.104802 http://doi.org/10.1016/j.jlp.2022.104802 https://linkinghub.elsevier.com/retrieve/pii/S0950423022000791 https://linkinghub.elsevier.com/retrieve/pii/S0950423022000791

覃彬 , 张奇 , 向聪 , 等 . 数值模拟研究分叉巷道中冲击波传播规律 [J ] . 含能材料 , 2008 , 16 ( 6 ): 741 - 744 ,757.

QIN B , ZHANG Q , XIANG C , et al. Numerical simulation research on shockwave propagation characteristics inside branch tunnel [J ] . Chinese Journal of Energetic Materials , 2008 , 16 ( 6 ): 741 - 744 , 757. (in Chinese)

覃彬 , 张奇 , 向聪 , 等 . 矿山巷道转弯处冲击波紊流区的数值模拟研究 [J ] . 金属矿山 , 2008 ( 10 ): 16 - 20 , 28.

QIN B , ZHANG Q , XIANG C , et al. Research on the shockwave turbulence area inside the bend tunnel by numerical simulation [J ] . Metal Mine , 2008 ( 10 ): 16 - 20 , 28. (in Chinese)

李秀地 , 方浩 , 耿振刚 , 等 . 温压炸药冲击波在L形坑道内的传播规律与衰减优化研究 [J ] . 防护工程 , 2017 ( 3 ): 33 - 38 .

LI X D , FANG H , GENG Z G , et al. Propagation and attenuation of airblast from thermobaric explosive inside L-shaped tunnel [J ] . Protective Engineering , 2017 ( 3 ): 33 - 38 . (in Chinese)

王鹤鸣 , 胡峰 . 巷道内爆炸冲击波多次峰值的初步研究 [J ] . 爆破 , 1991 ( 1 ): 14 - 16 .

WANG H M , HU F . Preliminary study on multiple peak values of explosion shock waves in tunnels [J ] . Blasting , 1991 ( 1 ): 14 - 16 . (in Chinese)

曲志明 , 孙强 , 黎锦贤 . 掘进巷道瓦斯爆炸冲击波与巷道壁面作用研究 [J ] . 煤矿安全 , 2005 ( 9 ): 1 - 2 ,33.

QU Z M , SUN Q , LI J X . Study of interaction between shock wave and surface in the excavation roadway during gas explosion [J ] . Safety in Coal Mines , 2005 ( 9 ): 1 - 2 ,33. (in Chinese)

侯玮 , 曲志明 , 骈龙江 . 瓦斯爆炸冲击波在单向转弯巷道内传播及衰减数值模拟 [J ] . 煤炭学报 , 2009 , 34 ( 4 ): 509 - 513 .

HOU W , QU Z M , PIAN L J . Numerical simulation on propagation and attenuation of shock waves in simplex turn roadway during gas explosion [J ] . Journal of China Coal Society , 2009 , 34 ( 4 ): 509 - 513 . (in Chinese)

钟珍 , 张雷林 , 石必明 , 等 . 巷道断面突变对突出冲击波传播的影响 [J ] . 煤矿安全 , 2021 , 52 ( 1 ): 1 - 7 .

ZHONG Z , ZHANG L L , SHI B M , et al. Influence of roadway cross-section mutation on the propagation of outburst shock wave [J ] . Safety in Coal Mines , 2021 , 52 ( 1 ): 1 - 7 . (in Chinese) In order to study the influence of roadway cross-section mutation on the shock wave propagation and the destruction of shock wave overpressure impulse, based on the experiment and numerical simulation, by using self-built experimental system for the propagation of coal and gas outburst shock wave and combining with the establishment of three-dimensional numerical model of shock wave propagation in varied-section roadway, the propagation law of outburst shock wave under different initial gas pressures was studied. The results showed that the pressure change in the roadway after outburst is divided into two stages of the initial stage of shock disturbance and the pressure attenuation stage, the results indicated that the peak value of the overpressure in the initial stage of shock disturbance is greater than the pressure attenuation stage. However, the overpressure impulse of the former is less than that of the latter, taking the initial pressure of 0.6 MPa as an example, the calculation results showed that the overpressure impulse of the pressure attenuation section is 52.4% higher than the initial stage of shock disturbance. Moreover, with the propagation of shock wave in the roadway, the total shock wave impulse appears to decay first and then increase. After outburst, the shock wave overpressure attenuates with distance first; in the process of the shock wave being introduced into the small diameter roadway from the large diameter roadway, a local high pressure area was formed due to wall reflection, which makes the overpressure strength rise at 0.65 m in front of the cross-section, showing a change rule of attenuation first and then increase.

王凯 , 周爱桃 , 魏高举 , 等 . 巷道截面变化对突出冲击波传播的影响 [J ] . 煤炭学报 , 2012 , 37 ( 6 ): 989 - 993 .

WANG K , ZHOU A T , WEI G J , et al. Influences of roadway cross section variation on outburst shock wave propagation [J ] . Journal of China Coal Society , 2012 , 37 ( 6 ): 989 - 993 . (in Chinese)

BENSELAMA A M , WILLIAM-LOUIS M J P , MONNOYER F , et al. A numerical study of the evolution of the blast wave shape in tunnels [J ] . Journal of Hazardous Materials , 2010 , 181 ( 1 ): 609 - 616 . DOI: 10.1016/j.jhazmat.2010.05.056 http://doi.org/10.1016/j.jhazmat.2010.05.056 https://linkinghub.elsevier.com/retrieve/pii/S0304389410006394 https://linkinghub.elsevier.com/retrieve/pii/S0304389410006394

UYSTEPRUYST D , MONNOYER F . A numerical study of the evolution of the blast wave shape in rectangular tunnels [J ] . Journal of Loss Prevention in the Process Industries , 2015 , 34 : 225 - 231 . DOI: 10.1016/j.jlp.2015.03.003 http://doi.org/10.1016/j.jlp.2015.03.003 https://linkinghub.elsevier.com/retrieve/pii/S0950423015000650 https://linkinghub.elsevier.com/retrieve/pii/S0950423015000650

胡宏伟 , 宋浦 , 邓国强 , 等 . 温压炸药的特性及发展现状 [J ] . 力学进展 , 2022 , 52 ( 1 ): 53 - 78 .

HU H W , SONG P , DENG G Q , et al. Characteristics of thermobaric explosives and their advances [J ] . Advances in Mechanics , 2022 , 52 ( 1 ): 53 - 78 . (in Chinese)

纪玉国 , 张国凯 , 李干 , 等 . 坑道口部温压炸药爆炸热效应与冲击波传播规律实验研究 [J ] . 南京理工大学学报 , 2022 , 46 ( 6 ): 649 - 658 .

JI Y G , ZHANG G K , LI G , et al. Experimental study on thermal effect and shock wave propagation of thermobaric explosives at tunnel entrance [J ] . Journal of Nanjing University of Science and Technology , 2022 , 46 ( 6 ): 649 - 658 . (in Chinese)

杨科之 , 袁正如 . 冲击波在坑道直角转弯处的衰减规律 [J ] . 防护工程 , 2012 , 34 ( 3 ): 20 - 24 .

YANG K Z , YUAN Z R . Shock wave attenuation at the orthogonal turning point in tunnels [J ] . Protective Engineering , 2012 , 34 ( 3 ): 20 - 24 . (in Chinese)

胡涛 , 蒋海燕 , 吴国东 , 等 . 坑道内爆炸平面波形成位置的数值分析 [J ] . 火炸药学报 , 2023 , 46 ( 7 ): 632 - 638 .

HU T , JIANG H Y , WU G D , et al. Numerical analysis of the formation position of the explosion plane wave in the tunnel. [J ] . Chinese Journal of Explosives & Propellants , 2023 , 46 ( 7 ): 632 - 638 . (in Chinese)

PANG L , LIU H Y , XIA D Y , et al. Influence of bend structure on air shockwave generated from gas explosion in the straight tunnel before the bend [J ] . Chinese Journal of High Pressure Physics , 2017 , 31 ( 4 ): 409 - 418 .

MOHAMED A K , MOSTAFA H E , ELBASUNEY S . Nanoscopic fuel-rich thermobaric formulations: chemical composition optimization and sustained secondary combustion shock wave modulation [J ] . Journal of Hazardous Materials , 2016 , 301 : 492 - 503 . DOI: 10.1016/j.jhazmat.2015.09.019 http://doi.org/10.1016/j.jhazmat.2015.09.019 Advanced thermobaric explosives have become one of the urgent requirements when targeting caves, fortified structures, and bunkers. Highly metal-based systems are designed to exploit the secondary combustion resulted from active metal particles; thus sustained overpressure and additional thermal loadings can be achieved. This study, reports on a novel approach for chemical composition optimization using thermochemical calculations in an attempt to achieve the highest explosion power. Shock wave resulted from thermobaric explosives (TBX) was simulated using ANSYS(®) AUTODYN(®) 2D hydrocode. Nanoscopic fuel-rich thermobaric charge was prepared by pressing technique; static field test was conducted. Comparative studies of modeled pressure-time histories to practical measurements were conducted. Good agreement between numerical modeling and experimental measurements was observed, particularly in terms of the prediction of wider overpressure profile which is the main characteristics of TBX. The TBX wider overpressure profile was ascribed to the secondary shock wave resulted from fuel combustion. The shock wave duration time and its decay pattern were acceptably predicted. Effective lethal fire-ball duration up to 50ms was achieved and evaluated using image analysis technique. The extended fire-ball duration was correlated to the additional thermal loading due to active metal fuel combustion. The tailored thermobaric charge exhibited an increase in the total impulse by 40-45% compared with reference charge. Copyright © 2015 Elsevier B.V. All rights reserved.