摘要
过去对地下结构震塌破坏的研究,往往是在假设地下结构为半无限厚的基础上进行的。基于层状介质中应力波的界面效应理论,提出了能考虑地下结构实际厚度的震塌破坏模型。通过实际算例,得到了应力波在地下结构中的传播规律,分析了岩石性质对地下结构局部震塌的影响。分析方法与结论对类似问题也有参考价值。
Research on the local response of spall for underground structures under blast loads was based on suppose of semi-infinite thickness of underground structures in the past. Spall model of underground structures based on interface effects theorem for stress waves within layered structures is presented to analyze total stress histories, according to the actual thickness of underground structures. Stress history curves within underground structures are obtained for soft and hard rock by a numerical example, respectively. And the influence of rock properties on the spall for underground structures is also analyzed. The analysis method and the results can be referred for similar problems.
出处
《爆破》
CSCD
2006年第1期6-9,共4页
Blasting
关键词
拉伸波
震塌
地下结构
tensile wave
spall
underground structures
