The article introduces the construction condition of blasting exploiting in certain strip mine,proposes the application of deep-hole bench blasting,non-coupling load,and short delay blasting technique in mine exploitation,sets rational blasting parameters,and draws a conclusion that the scheme has well blasting effect,which has certain referential values for similar engineering.

Comparison between wedge-shaped cutting and parallel cutting applied to excavation blasting of water diversion tunnel for Langwaihe Hydropower Station;

The management for safety is raised to a combined level of the supervision and management combined, it is of great significance to ensure the safety of excavation blasting in highway road construction.

The experiment about using slim hole and cool explosives to excavate a slope protection layer in excavation blasting is introduced, and excellent effectiveness is achieved.

According to characteristics of carbonate reservoir and primary matrix leakoff experimental model,We has established three leakoff models,such as broken core leakoff model,bored core leakoff model,and parallel plate core leakoff model,and determined each using range and object.

Optimization of blasting excavation scheme for construction diversion tunnel;

Blasting excavation usually can destroy and slack adjonining rock in a certain range, resulting in a reduction in its supporting strength.

Blasting excavation forming control is a key technology in the excavation of large-section underground cavern.