摘要
对现有高硫矿床开采中炸药自爆危险性的评价方法作了扼要的评述，并系统地分析了引起炸药自爆的有关因素和作用机理，从而设计出一套比较完整的自爆试验方法。根据该方法对３种炸药与硫化矿石的接触反应进行试验研究，最后提出了由孔温、孔内矿石水溶性Ｆｅ￣（２＋）＋Ｆｅ￣（３＋）含量和ｐＨ值３项指标确定安全装药时间的新的评价方法。
After making a brief review of the existing risk assessment criteria for the self＋blastingof explosive in the mining of sulphide ore deposit and giving a detailed description of the dy-namic process and mechanism of self-blasting and the relative factors，the research results ofthree kinds of explosives reacting with sulphide ore samples are presented based on a reliableexperimental method of self－blasting．Afterwards，a new self-blasting risk assessment criteri-on dependent on the hole temperature，water solution Fe^(2 ＋ )＋Fe^(2＋)and pH value is set up todetermine the safety charging time of explosive.
基金
中国有色金属工业总公司留学回国人员科研基金
关键词
硫矿床
矿山开采
爆破
sulphide ore deposit； self-blasting of explosive；experimental method；risk as-sessment
