Abstract Drilling and blasting methods have been used as a common driving technique for shallow-hole driving and blasting in rock roadways. With the advent of digital electronic detonators and the need for increased production efficiency. the traditional blasting design is no longer suitable for deep hole blasting. In this paper. https://safeersappliancers.shop/product-category/aeg-hob-crystal-line-hc452601eb-220-240-v/