Automatic design of blast-hole pattern for smooth blasting of rock tunnel
ZHAO Gaofeng1, YIN Chaofan1, HU Xiaodong1, DENG Xifei2
1. School of Civil Engineering, Tianjin University, Tianjin 300350, China; 2. The First Engineering Co., Ltd., China Tiesiju Civil Engineering Group, Hefei 230041, Anhui, China
Abstract: Traditional blasting design is mainly based on experience, and lacks systematic automatic layout algorithm for blas-thole design when smooth blasting is used for rock tunnel. Combined with the design code of blasting and the existing algorithm of blast-hole pattern, this paper introduced a programmatic automatic algorithm of blast-hole pattern suitable for various cross-section shapes from the aspects of computer graphics, simplex integration and automatic layout. Through the characterization of data structure for tunnel cross-section, calculation of geometric parameter and the streamline of division blasting, algorithm of blast-hole pattern for each area was introduced in details. The algorithm was applied to automatic blast-hole pattern design for rock tunnels with four cross-section forms of irregular trapezoid, semicircle arch, circle and ellipse, which verified the feasibility of the algorithm.
赵高峰, 殷超凡, 扈晓冬, 邓稀肥. 岩石隧道光面爆破的自动化布孔设计[J]. 隧道与地下工程灾害防治, 2020, 2(3): 48-57.
ZHAO Gaofeng, YIN Chaofan, HU Xiaodong, DENG Xifei. Automatic design of blast-hole pattern for smooth blasting of rock tunnel. Hazard Control in Tunnelling and Underground Engineering, 2020, 2(3): 48-57.
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2020, Vol. 2 
