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爆炸成腔与爆炸衬砌对周围介质密度的影响

王海亮

王海亮. 爆炸成腔与爆炸衬砌对周围介质密度的影响[J]. 岩土工程学报, 2011, 33(7): 1110-1116.
引用本文: 王海亮. 爆炸成腔与爆炸衬砌对周围介质密度的影响[J]. 岩土工程学报, 2011, 33(7): 1110-1116.
WANG Hai-liang. Influences of explosive enlargement and explosive lining on density of surrounding media[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(7): 1110-1116.
Citation: WANG Hai-liang. Influences of explosive enlargement and explosive lining on density of surrounding media[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(7): 1110-1116.

爆炸成腔与爆炸衬砌对周围介质密度的影响  English Version

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

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

  • 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。
    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.
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    [3] 王海亮, 马 敏, 叶朝良, 等. 爆炸成腔与爆炸衬砌对土体含水率的影响[J]. 岩土工程学报, 2008, 30(3): 425–428. (WANG Hai-liang, MA Min, YE Chao-liang, et al. Influence of explosive enlargement and explosive lining on moisture content of soil[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(3): 425–428. (in Chinese))
    [4] 黄承贤. 土中爆扩及其挤密效应的研究[J]. 爆炸与冲击, 1996, 16(4): 354–360. (HUANG Cheng-xian. Study of blast-enlargement and compaction in soil[J]. Explosion and Shock Waves, 1996, 16(4): 354–360. (in Chinese))
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    [9] 顾文彬, 叶序双, 詹发民, 等. 球形装药半无限体土介质中爆炸动力学分析[J]. 工程爆破, 1999, 5(1): 5–10. (GU Wen-bin, YE Xu-shuang, ZHAN Fa-min, et al. Dynamic analysis on spherical charges exploding in semi-infinite soil medium[J]. Engineering Blasting, 1999, 5(1): 5–10. (in Chinese))
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    [11] 冯长根, 王海亮, 金 龙, 等. 爆炸衬砌过程中介质位移的数值模拟研究[J]. 火炸药学报, 2002, 25(4): 1–4. (FENG Chang-gen, WANG Hai-liang, JIN Long, et al. Numerical simulation of displacements of the media during explosive lining in soil[J]. The Journal of Explosives and Propellants, 2002, 25(4): 1–4. (in Chinese))
    [12] 王海亮, 李新明, 丁慧哲, 等. 爆炸衬砌过程中流态砂浆内应力变化规律的数值模拟[J]. 科技导报, 2007, 25(23): 38–41. (WANG Hai-liang, LI Xin-ming, DING Hui-zhe, et al. Numerical simulation for time history of stress distributions in the mortar during explosive lining[J]. Science & Technology Review, 2007, 25(23): 38–41. (in Chinese))
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出版历程
  • 收稿日期:  2009-10-19
  • 发布日期:  2011-07-14

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