Drilling-and-Blasting Technology for Forming the Benches with Cambered-Broken Profile in a Limiting State in the 'Udachny' Open-pit

摘要

A technology is available for drilling-and-blasting when forming the open-pit benches with a cambered-broken profile in a limiting state for better retention of transportation berms. Three variants of the technology are proposed for formation of slopes in the "Udachny" open-pit, and the optimum variant is selected.