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本文就定向爆破筑坝时爆破设计计算的主要问题进行了初步探讨.文中,首先讨论了药包规划方法和爆破程序对坝体堆高和成型的影响,并概括出确定合理爆破程序的几点原则.其次,根据定向爆破筑坝的特点和要求,认为药包间距计算应以药包间被爆岩石具有均匀初速度分布为前提,装药量的计算应考虑到斜坡的影响,并给出了相应的计算式.此外,用弹道理论法在考虑了爆破参数、空气阻力和地面坡度影响等所有因素的情况下,导出了最大抛距计算式和堆积计算方法.最后,扼要地讨论了有关最优方案的选择问题.
This paper discusses the main issues of blasting design calculation for directional blasting dam construction. In the article, the impact of the drug package planning method and blasting procedure on the dam height and formation is first discussed, and the points for determining a reasonable blasting procedure are summarized. Principles. Secondly, according to the characteristics and requirements of directional blasting dams, it is considered that the calculation of the distance between charges should be based on the premise of uniform initial velocity distribution of blasted rocks between the charges. The calculation of the charge should take into account the influence of the slopes and give the corresponding The calculation formula. In addition, using the ballistic theory method, taking into account all the factors such as blasting parameters, air resistance and ground gradient effects, the maximum throw distance calculation formula and stacking calculation method were derived. Finally, the relevant optimization was discussed briefly. The choice of program.