A Comparative Study of Ground and Underground Vibrations Induced by Bench Blasting

Table 4

Blasting induced vibration permitted according to Chinese standards.

Protective object	Permitted PPV (mm/s)
	<10 Hz	10–50 Hz	>50 Hz
House built of soil or stone	1.5–4.5	4.5–9	9–15
General civil building	15–20	20–25	25–30
Industrial building	25–35	35–45	42–50
Ancient relic	1-2	2-3	3–5
Permanent slope	50–90	80–120	100–150
Roadway in mine	150–180	180–250	200–300