Analysis of the Destructive Effect of Large-caliber Earth-penetrating Projectile on Underground Targets

Tianhan XU; Haiming JIANG; Mingyang WANG; Zhen WANG; Haozhe XING

doi:10.12382/bgxb.2025.0791

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Analysis of the Destructive Effect of Large-caliber Earth-penetrating Projectile on Underground Targets

更新时间：2026-02-10

- Analysis of the Destructive Effect of Large-caliber Earth-penetrating Projectile on Underground Targets
- Acta Armamentarii Vol. 46, Issue S2, Pages: 250791(2025)
- 作者机构：
  
  1. 陆军工程大学爆炸冲击防灾减灾全国重点实验室, 江苏南京 210007
  2. 南京理工大学机械工程学院, 江苏南京 210094
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2025.0791
  CLC：
- Received：01 September 2025，
  
  Online First：03 February 2026，
  
  Published：2025
- 稿件说明：
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Tianhan XU, Haiming JIANG, Mingyang WANG, et al. Analysis of the Destructive Effect of Large-caliber Earth-penetrating Projectile on Underground Targets[J]. Acta Armamentarii, 2025, 46(S2): 250791.
DOI：

Tianhan XU, Haiming JIANG, Mingyang WANG, et al. Analysis of the Destructive Effect of Large-caliber Earth-penetrating Projectile on Underground Targets[J]. Acta Armamentarii, 2025, 46(S2): 250791. DOI： 10.12382/bgxb.2025.0791.

摘要

为有效打击深地防护工程

钻地弹逐渐向大口径、大当量发展

目前尚缺少对大口径钻地弹侵彻爆炸及多样化打击毁伤能力的综合分析。以国外某型大口径钻地弹为研究对象

利用经验公式及理论公式计算其对花岗岩介质的侵彻深度

通过等效当量系数给出不同埋深处的爆炸地冲击大小

分析该型钻地弹重复打击与多点爆炸对地下硐室的毁伤效应

给出了最小安全防护层厚度范围。研究结果表明:在侵彻速度300~600m/s范围内

对硬岩的侵彻深度为3~9m

当侵深为4.5m时地冲击已达到完全耦合

花岗岩中埋深超过50m的硐室已处在轻微破坏区

该弹单次打击不对其构成威胁;重复打击时对硐室破坏范围增加15.8%~40.5%

多点爆炸对硐室破坏范围增加60%~70%。

Abstract

To effectively neutralize the deep-underground protective engineering structures

the earth-penetrating projectiles are undergoing progressive development toward larger calibers and higher explosive yields.Currently

there remains a dearth of comprehensive analysis concerning the penetration

detonation

and diverse strike-induced damage capabilities of large-caliber earth-penetrating projectiles.Taking a specific type of foreign large-caliber earth-penetrating projectile as the research subject

its penetration depth into granite media is calculated using empirical formulas and theoretical formulations.The magnitude of explosive-induced ground shocks at different burial depths is quantified by using the equivalent yield coefficient

and the damage effects of repeated strikes and multi-point detonations of this type of earth-penetrating projectiles on the underground chambers are systematically analyzed.Furthermore

the range of minimum safe protective layer thickness is provided.The results indicate that the penetration depth of the earth-penetrating projectile into hard rock varies from 3m to 9m within a penetration velocity range of 300-600m/s.The ground shocks achieves complete coupling when the penetration depth reaches 4.5m.Underground chambers embedded at depths exceeding 50 m in granite are already situated within the slight damage zone

and the projectile does not pose a threat to such chambers in a single strike.In the case of repeated strikes

the damage range of the chambers is augmented by 15.8%-40.5%

and the multi-point detonations lead to an increase in the damage range of the chambers by 60%-70%.

关键词

Keywords

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