In order to protect the stability of the bench slopes in the ultimate boundary,the pre-split blasting technology is used for construction operation in a copper mine due to the irregular open-pit slope,super-high benches and desirable overall stability of the rock mass.According to the geological conditions and rock mass characteristics of the open-pit mine,the parameters of pre-split blasting are designed to optimize the construction technology.At the same time,the blasting effect is analyzed and evaluated from the aspects of residual half-porosity,slope flatness and rock breakage at the opening position.The practice shows that reasonable design of technical parameters of pre-split blasting can obviously improve the stability of slope and guarantee the safety of production.
关键词
露天矿山/预裂爆破/爆破参数/爆破效果/边坡稳定性
Key words
open pit mines/pre-split blasting/blasting parameters/blasting effect/slope stability
维普
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