There are hundreds of blast holes in a tunnel blasting.Since the traditional manual drawing of the blasting scheme is laborious and depends on the experience of blasting engineering,a digital method for the planar and three-dimensional spatial distribution of blast holes was proposed based on formula derivation to study an intelli-gent design method for tunnel blasting blast holes.Subsequently,the programming of blast hole parameters was a-chieved by utilizing computer programming techniques,which can lead to the development of an intelligent blast hole design system.The results show that the parametric expression method of tunnel contour,cut holes,peripheral holes and auxiliary holes can realize their rapid creation and meet the needs of tunnel blasting.By establishing a correlation between the coordinates of the blast hole opening and bottom,a refined expression of the spatial distribution of the blast hole can be realized,and intuitive guidance for on-site drilling operations can be provided.Furthermore,a com-puter programming method can realize an intelligent and fine design of a blast hole layout.After tunnel blasting,the residual marks of the blast holes are complete,the contour of the tunnel excavation is smooth,and the overall excava-tion effect is good.The research results can improve the efficiency and intelligence of tunnel blast hole design.
关键词
钻爆法/炮孔布设/参数化/三维可视化/工程应用
Key words
drilling and blasting method/blast hole layout/parameterization/three-dimensional visualization/engineering application
维普
万方数据