Ground and air vibrations caused by surface blasting. Volume 2. Ground vibration monitoring and assessment of conventional predictors. Open file report (final) 1 October 1980-30 September 1983

Technical Report · Thu Sep 01 04:00:00 EDT 1983

OSTI ID:6788299

Shoop, S A; Daemen, J J.K.

Thirty-seven blasts were monitored using either three or four seismographs at four coal strip mines and at a limestone quarry. Statistical analysis of the data shows that square root, cube root, and site specific scaling methods predict peak particle velocities with about the same degree of reliability. Some mines have peak particle velocities that are significantly lower or higher than the Bureau of Mines averages. This suggests that the option provided by the proposed regulations of the Office of Surface Mining in 1983 to adjust blast designs based on site specific measurements could be highly beneficial both to operators and to the public. The frequency spectra reveal that the predominant frequencies were generally less than 50 Hz, but several blasts had a significant amount of energy up to 125 Hz. In some cases the vibration energy was concentrated at frequencies corresponding to the delay intervals.

• Research Organization: Arizona Univ., Tucson (USA). Dept. of Mining and Geological Engineering
• OSTI ID: 6788299
• Report Number(s): PB-84-191949
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
BLAST EFFECTS
COAL MINING
COMMINUTION
EXPLOSIVE FRACTURING
FORECASTING
FRACTURING
MEASURING INSTRUMENTS
MINING
NOISE
SEISMIC ARRAYS
SEISMIC DETECTORS
SEISMIC EFFECTS
SEISMOGRAPHS
SHOCK WAVES
SURFACE MINING