Shock and Vibration / 2016 / Article / Tab 5

Research Article

Research on Effects of Blast Casting Vibration and Vibration Absorption of Presplitting Blasting in Open Cast Mine

Table 5

Actual blast vibration detection data and absorption shock rate of presplit blasting.

Detection point distance to blasting center/mVelocity of vibration/cm·s−1
200400600800100012001400

Presplit blasting5.482.211.30.890.660.520.43
Non-presplit blasting 11.013.972.181.431.030.790.63
Vibration reduction ratio50.2%44.3%40.4%37.8%35.9%34.2%31.7%

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