Influence of Electronic Detonator on Rock Blasting Price of Underground Excavation Project
In recent years,electronic detonator has been widely used in underground excavation engineering,because of its high price,rock blasting price greater impact.Taking the two underground excavation stations and sections of Qingdao Metro as examples,this paper analyzes the consumption of electronic detonators and explosives in underground excavation by blasting with the methods of field measurement and statistical dosage.The main influencing factors are geological classification,tunnel excavation area and shaft support structure.According to the analysis results.The corresponding pricing suggestions are put forward in order to provide reference for the pricing of rock blasting in underground excavation engineering.
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万方数据
