全部

力学与实践 ›› 2004, Vol. 26 ›› Issue (1): 0-0.doi: 10.6052/1000-0992-2002-425

• 应用研究 •    

峒室爆破中分装药包位置参数的工程计算

安二峰 周听清 沈兆武 刘天生   

  1. 中国科技大学力学与机械工程系 合肥中国科技大学5系 中国科学技术大学力学与机械工程系 合肥 230026 太原华北工学院环境与安全工程系
  • 收稿日期:2002-12-11 修回日期:2003-03-20 出版日期:2004-02-10 发布日期:2004-02-10

POSITIONAL PARAMETER ENGINEERING CALCULATION OF DIVIDED CHARGES IN CHAMBER BLASTING

  • Received:2002-12-11 Revised:2003-03-20 Online:2004-02-10 Published:2004-02-10

摘要: 为减小爆破震动对路基和边坡稳定性的影响, 从装药的``微分减震''原理 出发,采用分装药包代替常规的集中药包,并进一步确定分装药包间距, 运用应力波 理论和工程计算相结合的方法,探讨岩石破裂圈与分装药包应力叠加的联系,总结出在一般 条件下的分装药包设计规律和方法;并通过工程实践得到了进一步验证, 对同类 爆破工程的设计具有重要指导意义.

关键词: 峒室爆破, 分装药包, 药包间距

Abstract: In order to reduce the influence of blasting vibration on wall rock and roadbed, the divided charges are used to take place of centralized charge and then the interval between the divided charges is determined by engineering calculation based on stress wave spread in rock. The intreval between the divided charges is calculated based on the relations between cracking circles and folded stress waves and the relations between cracking circles and folded stress are studied by stress wave theory and stress analysis of the folded stress that acted on the rock based on engineering practice. The rule and method for the design of the interval between divided charges are established through mechanism analysis and engineering calculation under common conditions and then validated by engineering practice. The rule and method may serve as a guidance in the congener engineering blasting.

Key words: chamber blasting, divided charges, interval between chambers