论文部分内容阅读
该研究是国家“七五”科技攻关项目《大型露天铁矿控制爆破技术与爆破器材的研究》中的一个主要专题。在南芬铁矿和水厂铁矿同时进行试验研究。 南芬铁矿:①采用先进装药车预装药,进行了八次50—81万吨的大区微差爆破,其中最大一次爆破量达81.1万吨,创我国露天矿大区微差爆破规模的最高记录;②按照总成本最低的原则,提出了一套计算机优化爆破参数和炸药品种选择的模型与计算程序;③开发研究成功了异步分区起爆大规模干扰降震技术,应用该技术可使爆破段数增加到3～4倍,一次爆破量可达80～100万吨,爆破地震效应降低率最高达59％。在矿岩中平均降震率为28.6％。
This research is one of the major topics in the “Seventh Five-Year Plan” scientific and technological project “Research on Controlled Blasting Technology and Blasting Equipment in Large Opencast Mine”. At Nanfen iron ore and iron ore at the same time experimental study. Nanfen iron ore: ①Prepared with advanced drug loading vehicles, eight times a large area of 50-810000 tons of micro-blasting, the largest one blasting amounted to 81.1 million tons, a major open-pit mine in our country According to the principle of the lowest total cost, a set of computer optimization blasting parameters and the selection of explosives models and calculation procedures; ③Development of successful asynchronous partition initiation large-scale jamming technology, the application of this technology can be The number of blasting segments increased to 3 to 4 times, a blasting volume of up to 80 to 1 million tons, blasting earthquake reduction rate of up to 59%. The average rate of shock in ore rock is 28.6%.