QUALITY
SERVICE IS OUR FIRST PRIORITY
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ROCK
BLASTING
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BLASTING
CONSULTING
SGSI
has provided blasting consulting for demanding projects involving
sensitive residential settings, tight environmental restrictions,
heavy highway traffic, stringent aesthetic criteria, and cost
containment.
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Blasting
Blasting
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For
example:
SGSI
provided blast design and quality control for an Arizona highway
widening where tall sliver cuts in damaged granite had to be
shot using specialized horizontal hole patterns that would limit
fly rock and contain shot rock to the 24-ft-wide roadway.
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SGSI
worked with the blasting crew shooting a basement in granite
within 100 ft of a $4.5 million, award-winning, multi level house
constructed of framed plaster walls. SGSI developed special timing,
loading, and fly rock protection procedures, and provided close
field review, that prevented any allegation of damage by the
adjoining homeowner. |
SGSI
reviewed presplit blasting practices at a Mexican open pit gold
mine and made recommendations that cost-effectively improved
wall control in very hard, silicified sediments with weak, moderately-dipping
bedding planes. |
| SGSI
personnel developed and oversaw specialized trench blasting practices
in hard gneiss in an upscale neighborhood where over 400 adjoining
property owners had petitioned to prohibit blasting; concerns of
the homeowners and local government were quickly addressed and
the project was completed successfully. |
| SGSI
has provided blast plan development, blast plan review, plans,
specifications, and estimates; and field blasting assessment on
millions of yards of high-production highway rock excavation. |
INSTRUMENTATION
AND PRE-BLAST SURVEYS
SGSI
furnishes blast and construction vibration monitoring using
its own equipment. SGSI also provides pre-blast surveys, investigation
of vibration damage allegations, and interpretation of vibration
time histories. SGSI also furnishes blast optimization using
VOD (Velocity of Detonation) instrumentation and optical/digital
fragmentation techniques. |
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