Control blasting scheme of mineral processing plant expansion foundation excavation under complex environment in open-pit iron mine
In order to safely and effectively realize the controlled blasting excavation of the foundation for plant selection and expansion,in view of the difficulties such as complex blasting environment,strict control of harmful effects of blasting,and large technical difficulties in blasting technology,the blasting safety control is combined with the surrounding environment,lithology characteristics,structures and other conditions of the project,and technical solutions such as quantitative blasting design,differential makeup structure,and accurate delay design are adopted.We optimize blasting parameters and blasting network,use digital electronic detonators to accurately control the delay time,and realize layered delay initiation in the hole and micro-differential initiation technology.At the same time,the explosion area is protected,the vibration and flying stones are controlled by pre-cracking blasting,and the controlled blasting excavation of plant foundation expansion is successfully implemented.
blasting parametercontrolled blastingdelayed initiationharmful effect of blastingblasting effect
国家科技期刊平台
NSTL
万方数据
