峒室爆破中分装药包位置参数的工程计算

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．

Positional parameter engineering calculation of divided charges in chamber blasting

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.