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The influence of soil parameters on the impulse and airblast overpressure loading above surface-laid and shallow-buried explosives

机译：土壤参数对浅埋浅埋炸药上方脉冲和冲击力超压负荷的影响

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摘要

The dynamic airblast, fragmentation, and soil ejecta loading environments produced by the detonation of surface-laid and shallow-buried mines are major threats to lightweight military vehicles. During the past several years, the US Army has focused considerable attention on developing improved methods for predicting the below-vehicle environment from these threats for use by vehicle/armor analysts; thereby, improving the survivability of these platforms. The US Army Engineer Research and Development Center recently completed the first year of a three-year effort to experimentally and numerically quantify the blast and fragment loading environments on vehicles due to surface and subsurface mine and IED detonations. As part of this research effort, a series of experiments was conducted to quantify the effects of soil parameters on the aboveground blast environments produced by the detonation of aboveground bottom-surface-tangent, buried top-surface-tangent, and shallow-buried 2.3-kg (5-lb) Composition C4 charges. The experiments were conducted using three different well characterized soils; 10.8% air-filled-voids (AFV) silty sand, 5.4% AFV clay, and 29.8% AFV poorly graded sand. The combined aboveground loads due to airblast and soil debris were measured by an impulse measurement device. The near-surface airblast overpressure was quantified by a series of side-on measurements above the charges at one elevation and three radial distances. This paper summarizes and compares the results of the experimental program with emphasis on defining the effect of soil parameters on the aboveground blast environment.
机译：地埋式和浅埋地雷的爆炸产生的动态的爆炸，碎片和土壤弹射装载环境是对轻型军车的主要威胁。在过去的几年中，美国陆军集中精力开发改进的方法，以从这些威胁中预测车下环境，以供车辆/装甲分析人员使用。从而提高了这些平台的生存能力。美国陆军工程师研究与发展中心最近完成了为期三年的第一年工作，该工作旨在通过实验和数字方式量化由于地表和地下地雷以及IED爆炸而导致的爆炸和碎片装载环境。作为这项研究工作的一部分，我们进行了一系列实验，以量化土壤参数对由地上底切线，埋入顶切线和浅埋2.3-b爆轰产生的地上爆炸环境的影响。千克（5磅）C4装料。实验是使用三种不同的特征良好的土壤进行的； 10.8％的充气空隙粉砂，5.4％的粘土和29.8％的低等级砂土。由冲击波和土壤碎屑引起的地上载荷合计由脉冲测量装置测量。近地表气瓶超压通过在一个仰角和三个径向距离处的装药上方的一系列侧面测量来量化。本文总结并比较了实验程序的结果，重点是定义了土壤参数对地上爆炸环境的影响。

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  • 来源
    《Shock and vibration》 |2011年第6期|p.857-874|共18页
  • 作者

    John Q. Ehrgott Jr.; Stephen A. Akers; E. Windham; Denis D. Rickman; Kent T. Danielson;

  • 作者单位

    Impact and Explosion Effects Branch, Geotechnical and Structures Laboratory, US Army Engineering Research and Development Center, Vicksburg, MS, USA;

    Impact and Explosion Effects Branch, Geotechnical and Structures Laboratory, US Army Engineering Research and Development Center, Vicksburg, MS, USA;

    Impact and Explosion Effects Branch, Geotechnical and Structures Laboratory, US Army Engineering Research and Development Center, Vicksburg, MS, USA;

    Impact and Explosion Effects Branch, Geotechnical and Structures Laboratory, US Army Engineering Research and Development Center, Vicksburg, MS, USA;

    Impact and Explosion Effects Branch, Geotechnical and Structures Laboratory, US Army Engineering Research and Development Center, Vicksburg, MS, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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