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冰川冻土 ›› 1998, Vol. 20 ›› Issue (1): 55-59.

• 研究论文 • 上一篇    下一篇

人工冻土波速及爆破性的研究

马芹永   

  1. 淮南矿业学院土木工程系, 安徽淮南232001
  • 收稿日期:1997-02-16 出版日期:1998-02-25 发布日期:2012-04-26
  • 基金资助:
    煤炭高校青年科学基金(96-067)项目部分成果.

Wave Velocity and Blastability Test on Artificially Frozen Soils

Ma Qin-Yong   

  1. Dept. of Civil Engineering, Huainan Institute of Mining, Huainan City 232001
  • Received:1997-02-16 Online:1998-02-25 Published:2012-04-26

摘要: 从理论上分析了人工冻土波速与爆破性的关系,进行了冻结砂土、冻结粘土在3个不同温度下(-7℃,-12℃,-17℃)的纵波速度、横波速度和冻土爆破性试验。结果表明,纵波速度与变形能系数关联度最大,纵波速度能较好地反映冻土的爆破性。

关键词: 冻土, 纵波速度, 横波速度, 变形能系数, 爆破性

Abstract: The wave velocity and blastability are theoretically analysed. The longitudinal wave velocity, transversal wave velocity and blastability are measured in samples of frozen clay and sand under the temperature of -7℃, -12℃ and -17℃ respectively. The results show that the longitudinal wave velocity is closely correlated to strain energy factor and exhibits the blastability of frozen soil.

Key words: artificially frozen soil, longitudinal wave velocity, transversal wave velocity, strain energy factor, blastability

中图分类号: 

  • P642.14