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药位置对拱形工事震塌高度影响的数值模拟
Numerical Simulation for Collapsing Height of Arched Structures Influenced by Charging Site
【摘要】 通过数值模拟研究了在相同质量炸药爆炸情况下,对半无限岩石介质地下 10m处拱形工事的毁伤情况。模拟结果得到装药为 2kg,爆源距工事顶端分别为 3m、5m、7m时对工事顶部产生的塌落高度。为炸药爆炸载荷作用与拱形工事防护研究提供依据。
【Abstract】 The numerical simulation method was used to study the collapse of arched structures in a 10 m under ground rock medium under condition of same amount of charges.The simulated collapse heigths can be obtained when the distances between explosive sources and upward end of structures are 3 m,5 m and 7 m and the loading charge is 2 kg.The experience can be refered by the similar engineering.
【关键词】 数值计算;
地下结构;
应力场分布;
爆炸载荷;
【Key words】 numerical calculation; underground structures; stress distribution; explosive load;
【Key words】 numerical calculation; underground structures; stress distribution; explosive load;
- 【文献出处】 爆破 ,Blasting , 编辑部邮箱 ,2005年01期
- 【分类号】TJ410
- 【被引频次】13
- 【下载频次】129