Page 42 - 《爆炸与冲击》2025年第9期

第 45 卷 第 9 期 爆 炸 与 冲 击 Vol. 45, No. 9
2025 年 9 月 EXPLOSION AND SHOCK WAVES Sept., 2025

DOI：10.11883/bzycj-2024-0381

平整壁面通道内冲击波传播试验研究 *

王 振，李熙莱，李胡军
（南京理工大学，江苏 南京 210094）

摘要： 为研究不同爆炸当量与不同装药位置下通道内冲击波的传播过程，建立了满足单兵人员通行的试验通
道。通过试验对比了装药量与装药位置对超压时程曲线及冲击波参数分布的影响，开展了与试验工况相同的数值模
拟，结合压力云图和超压时程曲线，发现波阵面运动是导致超压时程曲线演变和参数分布变化的主要原因。基于试验
和数值模拟结果得到了具有实际工程参考意义的通道内冲击波超压预测模型。
关键词： 爆炸冲击波；通道；冲击波传播；衰减机理
中图分类号： O382; E952 国标学科代码： 1303520 文献标志码： A

Experimental study on the propagation of shock wave
in the channel with flat wall

WANG Zhen, LI Xilai, LI Hujun
（Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China）

Abstract: To investigate the propagation process of shock waves within a channel under different explosive yields and charge
positions, this study established an experimental channel designed for individual soldier transit. Through experiments and
simulations, it is found that the quantity and position of the charge affect the time history of overpressure and shock wave
parameters. Within the tunnel, the propagation velocity and overpressure peak of the shock wave decreased with increasing of
distance, while the duration and impulse of positive overpressure continuously extend and increase. When the charge
equivalent increases, all shock wave parameters are enhanced, though the influence on the rate of overpressure peak attenuation
is minimal. As the distance between the explosion center and the interior of the tunnel increases, all parameters decline. Both
experiments and simulations reveal a unique change in the time history of overpressure and shock wave parameters near the
9 m measurement point inside the tunnel. By analyzing pressure contour maps and overpressure time history, it is discovered
that wavefront movement is the primary cause. Based on the fundamental shock wave theory, a higher overpressure peak of
shock wave results in faster wavefront motion. From the 3 m to 7 m section inside the entrance, the leading wavefront
overpressure continuously attenuates with increasing distance, and its motion speed significantly decreases. However, the
overpressure values of subsequent reflected waves attenuate more slowly or even exceed those of the leading wavefront due to
continuous collision and superposition. Between the 7 m and 9 m sections inside the entrance, the reflected waves formed by
later superposition catch up with and overlap the leading wavefront, resulting in an increase in the first peak value with
increasing distance. This process is also clearly understood through the simulated overpressure contour map. Based on the
experimental and numerical simulation results, a predictive model for shock wave overpressure within the channel, which has
practical engineering reference significance, has been developed.
Keywords: explosion shock wave; tunnel; shock wave propagation; attenuation mechanism

* 收稿日期： 2024-10-09；修回日期： 2024-12-08
基金项目： 国家自然科学基金（52378401， 52422808）
第一作者： 王 振（1987－ ），男，博士，教授，wangzhen2012@njust.edu.cn
通信作者： 李胡军（1996－ ），男，博士研究生，lihujun@njust.edu.cn

092201-1