Research on Automatic Zoning Design System of Tunnel Excavation Blasting Scheme
In the traditional drill-blasting method of tunnel construction,the design process of blasting scheme is complex,which requires high blasting experience of designers.Based on the traffic tunnel project of Weifang Pumped Storage Power Station,the automatic zoning design system of tunneling blasting scheme is studied by means of theoretical formula,computer programming and field test.The system is mainly divided into three parts:input module,calculation module and output module.The input module is mainly the parameters that must be considered in the design of blasting scheme,including tunnel contour line,working bench,explosive properties and competent coefficient of rock.In the calculation module,a variety of methods are proposed to calculate the blasting design parameters considering competent coefficient of rock and explosive properties,including the calculation methods of hole spacing,row spacing and charge mass.After the application of the system in the traffic tunnel test section,the blasting excavation effect of the site is improved,and its feasibility is verified.
tunnel engineeringblastingdesign assistant systemzoning of heading facecompetent coefficient of rock
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