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Houston, USA, December 7, 2015: Atlas Copco Rental Oil-Free air compressors create underwater buffer during implosion of pier. The San Francisco Bay being a significant ecological habitat in California, words like explosives and implosion generated concern when they were used to discuss how the 80-year-old San Francisco–Oakland Bay Bridge’s 21 piers should be demolished.
24 Νοεμβρίου 2015
Kiewit/Manson is a socially responsible company and they needed diesel-powered air compressors. We were an obvious choice because our compressors are CARB permitted.
Brian Ford, Atlas Copco Rental Area Sales Manager out of Livermore, Calif., said assembling a fleet of so many 1,600 cfm compressors for a job is not a small undertaking.
We were confident we could provide what they needed ... We have the largest fleet of 100% Oil-Free air compressors that are both diesel powered and CARB-permitted in North America.
This pier implosion was the culmination of years of collaborative preparation and planning. The combination of science, technology and engineering with environmental stewardship is historical.
For six seconds, a sequential series of blasts from 600 explosive charges rumbled through the structure, fracturing the reinforced concrete, which collapsed into the pier’s own honeycomb-like base below the bay floor. It left nothing to retrieve but the blast covers floating in the foam, which had been over the structure as an added precaution against potential flyrock.
Initial studies including three days of round-the-clock observation after the blast have determined no injuries or deaths to aquatic wildlife.
This method has proven itself to be the most cost-effective and environmentally friendly.
The successful demonstration of blasting in the bay may now be used on the other piers, all that remains of the Bay Bridge after construction of a new Skyway between San Francisco and Oakland.
Atlas Copco is a world-leading provider of sustainable productivity solutions. The Group serves customers with innovative compressors, vacuum solutions and air treatment systems, construction and mining equipment, power tools and assembly systems. Atlas Copco develops products and service focused on productivity, energy efficiency, safety and ergonomics. The company was founded in 1873, is based in Stockholm, Sweden, and has a global reach spanning more than 180 countries. In 2015, Atlas Copco had revenues of BSEK 102 (BEUR 11) and more than 43 000 employees.
Specialty Rental is a division within Atlas Copco’s Construction Technique business area. It serves customers in the industry segments around the world with temporary air, nitrogen, steam and power rental solutions. The specialty rental services are offered under several brands. The divisional headquarters is located in Houston, USA.