爆炸成腔与爆炸衬砌对周围介质密度的影响

王海亮

爆炸成腔与爆炸衬砌对周围介质密度的影响 English Version

王海亮

（山东科技大学矿山灾害预防控制教育部重点实验室，山东青岛266510 ）

基金项目: 国家自然科学基金资助项目(10672091)

详细信息

作者简介:
王海亮(1963– )，男，河北石家庄人，博士，教授，主要从事爆炸与安全技术、矿山工程方面的研究。

中图分类号: TU411
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出版历程
- 收稿日期: 2009-10-19
- 发布日期: 2011-07-14

Influences of explosive enlargement and explosive lining on density of surrounding media

WANG Hai-liang

(Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science &Technology, Qingdao 266510, China)

摘要

摘要: 针对爆炸成腔与爆炸衬砌对周围介质密度的影响进行了数值模拟和现场试验研究。应用Dyna-2D软件进行数值模拟研究的结果与近20多年以来相关的研究结论基本一致。数值模拟研究表明，在爆炸形成的腔体或砌体内壁存在一个密度小于介质初始密度的低密度区。但是，现场试验研究的结果并不支持这些结论。通过10次现场爆炸试验对爆后介质的密度进行了实测。研究结果表明：无论是爆炸成腔还是爆炸衬砌，腔壁附近介质的密度均大于介质的初始密度，不存在所谓的低密度区。认为“腔壁近区密度不是最大”、“空腔壁上的介质层，有一密度小于其初始密度的层”的观点是错误的。
- 爆炸衬砌 /
- 爆扩 /
- 腔体 /
- 土 /
- 密度 /
- 数值模拟
Abstract: Aiming at the influences of explosive enlargement and explosive lining on the density of surrounding media, numerical simulations and field tests are carried out. The results of numerical simulations by Dyna-2D are consistent with the conclusions of related studies in recent 20 years. The numerical simulations show that there exists a low-density zone at the inwall of explosively formed cavity or lining, and the density in the zone is lower than its initial one. But the field tests results do not support the above conclusions. Ten field explosive tests are carried out to confirm the density of the media. The results indicate that the densities of the cavity’s surrounding media, formed through either explosive enlargement or explosive lining, are all higher than their initial ones, and no so-called low-density zone exists. The following viewpoints are all mistaken that the density isn’t the highest at the inwall near the cavity, and that there exists a medium zone whose density is lower than its initial one.
- explosive lining /
- explosive enlargement /
- cavity /
- soil /
- density /
- numerical simulation

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参考文献(12)

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爆炸成腔与爆炸衬砌对周围介质密度的影响 English Version

作者简介: 王海亮(1963– )，男，河北石家庄人，博士，教授，主要从事爆炸与安全技术、矿山工程方面的研究。

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出版历程

Influences of explosive enlargement and explosive lining on density of surrounding media

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出版历程

目录

作者简介:
王海亮(1963– )，男，河北石家庄人，博士，教授，主要从事爆炸与安全技术、矿山工程方面的研究。