blasting radius of influence
blasting radius of influence
(OP)
I plan to build a station for monitoring the slopes on an open pit mine.
Since blasting is going to be a very common activity I am afraid of placing this permanent monitoring container in the radius of influence when blasting activities take place.
Anyone knows if there is a formula or any approach on how to compute the minimun distance at which i should build my station so It won't fall into the blasting influence?
I undestand at some point it depends on the blasting method, equipment, type of rock, blasting depth, etc.
Please let me know.
Since blasting is going to be a very common activity I am afraid of placing this permanent monitoring container in the radius of influence when blasting activities take place.
Anyone knows if there is a formula or any approach on how to compute the minimun distance at which i should build my station so It won't fall into the blasting influence?
I undestand at some point it depends on the blasting method, equipment, type of rock, blasting depth, etc.
Please let me know.
RE: blasting radius of influence
RE: blasting radius of influence
RE: blasting radius of influence
You need to set up your equipment (seismograph, accelerometers) in the areas that you are concerned about damaging if evaluating blast damage is your objective. Then record blasting information including geology (rock type), powder factor, number of holes, delay times between holes and between rows, explosive type, survey of the pattern and your monitoring data which includes location of monitoring station, the full seismic waveform, frequency, peak particle velocity. Also observe the blasts and look for excessive flyrock or anything else that seems to have gone wrong. With data from several blasts, you can evaluate performance which is not rudimentary.
RE: blasting radius of influence
RE: blasting radius of influence
RE: blasting radius of influence
RE: blasting radius of influence
I assume that you planned to use prisms and extensometers for monitoring. Did you plan to use any other monitoring devices?
For extensometers, I recommend these http://www.slideminder.com/. They work very well and have a telemetry system to transmit the monitoring data and alerts so that you get real-time data (immediate notification of slope movement).
Best of luck.
RE: blasting radius of influence
Absolutely no one was disciplined, nor were blasting procedures changed. S**t happens when using explosives.
RE: blasting radius of influence
Two classic examples of fly rock / rolling rock are linked
http://banthequarry.org/3-Education/Impacts/Flyroc...
RE: blasting radius of influence
I hope we've been able to help provide some guidance pelelo. If you have any other questions, I'd be happy to comment. I have lots of experience doing slope monitoring in open pits. Cheers!