Shock and Vibration / 2017 / Article / Tab 1

Research Article

Numerical Simulation of Blast Vibration and Crack Forming Effect of Rock-Anchored Beam Excavation in Deep Underground Caverns

Table 1

Different blast hole layout and charge parameter.

NameHole diameterHole distanceHole depthHole amountCartridge diameterCharging density

① Vertical holesΦ 42 mm30 cm248 cm68Φ 25 mm65/70/85 g/m
② Oblique holesΦ 42 mm30 cm260 cm68Φ 25 mm65/70/85 g/m
③ Auxiliary holesΦ 42 mm90 cm242 cm22Φ 25 mm186/206/250 g/m