摘要
对冻土进行了一次起爆、孔内微差爆破漏斗试验,收集爆破块度进行筛分统计,根据分形理论,计算了冻土爆破块度的分形维数。通过分析计算分布函数的特征参数,分析了分形维数与分布函数特征参数的关系。结果表明,分形维数定量表征了冻土爆破块度的分布情况,分形维数可定量表示冻土爆破的最小块度率、爆破漏斗体积和装药深度,分形维数与冻土破碎的最小块度率有很好的相关性,最小块度的百分率愈大,分形维数愈大,反之愈小,较小的分形维数基本上对应于最佳装药深度和最大爆破漏斗体积。
The instantaneous and millisecond blasting crater model experiment of frozen sand is conducted at -17℃, and the blasting fragments are collected and statistically analyzed. By means of fractal theory, the fractal dimensions of blasting fragment of frozen sand are calculated. Through the analyses of distributing function, the relationship between the characteristic parameters of distributing function and fractal dimension is primarily analyzed. The result shows that the fractal dimension quantitatively indicates the distribution character of frozen sand blasting fragments. There is obvious pertinence between fractal dimension and the blasting depth and blasting crater volume of frozen sand.
出处
《安徽理工大学学报（自然科学版）》
CAS
2003年第3期32-36,共5页
Journal of Anhui University of Science and Technology:Natural Science
基金
安徽省优秀青年科技基金资助项目(2001-28)
