摘要
通过对岩体内炸药爆炸产生应力波破岩特征分析 ,得出了更为精确的应力波作用下裂隙区半径计算公式 ,同时对岩体内的原生裂纹及爆炸应力波损伤作用下的爆生裂纹的最终扩展长度进行研究。并利用实验室模型试验和ADINA计算程序对岩体内应力波能的数值进行计算分析 ,得出当小抵抗线大孔距时 ,岩体内应力波能分配较均匀 。
Based on the analysis of the rock breaking characteristics of stress wave produced by the explosion in rockmass ,a more accurate formula of crack zone radius was obtained.Meanwhile,study on original crack and blast crack length induced by the injuring function of the blast stress wave and the natural fractures was made.Calculation of the numerical value of the stress wave energy in the rock mass was also made by laboratory modelling test and ADINA calculation program and it is concluded that when the burdern is smaller than the holespacing,the stress wave energy in the rock mass distributes evenly,which may facilitate the rock breakage.
出处
《金属矿山》
CAS
北大核心
2002年第2期13-16,共4页
Metal Mine
基金
安徽省教育厅自然科学基金重点项目 (编号 :2 0 0 1kj2 32zd)
