Demolition of P Reactor Stack at SRS

October 23, 2010, the Department of Energy's Savannah River Site (SRS) removed two exhaust stacks from the Site's P & R reactors. With less than 40 pounds of dynamite and in a matter of seconds, the two 145-foot tall, 700-ton stacks that have towered over the P and R Reactors for more than 50 years came down. The demolition is part of an American Recovery and Reinvestment Act project that is decommissioning the two Cold War era reactors. This $185 million Recovery Act demolition project is part of in situ, or in-place, decommissioning of the two reactors, a Recovery Act Program managed by Savannah River Nuclear Solutions (SRNS), the SRS management and operations contractor. The project employed 108 people to complete the stack demolition. The rubble from the stacks will be placed below grade and grouted in place at each of the reactors. In preparation for the demolition, SRNS modified the base of each stack to create "columns" into which they will drill 80 15-inch-deep horizontal holes for explosive loading. The explosive charge was initiated by nonelectric detonators ranging in time from 25-200 milliseconds to assist in controlling the rate and direction of the fall of each stack. Seismographs where used in the immediate area to monitor the vibration and air blast generated by the demolition. The P Reactor stack fell first, followed by the R Reactor stack. A video of the demolition is available [here]. The demolitions were performed by Controlled Demolition, Inc. (CDI ...



http://www.youtube.com/watch?v=cGU2MTMz2gE&hl=en

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Savannah River Site 105 P&R Reactor Exhaust Chimney Demolition - Controlled Demolition, Inc.

Controlled Demolition, Inc. (CDI) of Phoenix, Maryland, USA (acting as Implosion Subcontractor to Baker Concrete Construction, Inc. of Monroe, Ohio) performs the successful explosives felling of two (2), 145 foot tall, reinforced concrete reactor chimneys, each sitting atop 55 foot tall reactor structures on Saturday, October 23, 2010 at the P and R Reactors within the Department of Energy's Savannah River Site in Aiken, South Carolina. www.controlled-demolition.com



http://www.youtube.com/watch?v=pN5YLehUDBo&hl=en

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Engineering Test Reactor Removal

The last week of September 2007 was the 50th Anniversary of the Power Engineering Test Reactor. There was also a milestone for the Idaho project cleaning, if the mortar-filled reactor vessel was pulled out of the ground, loaded onto a trailer and a radioactive and hazardous waste disposal facility. The reactor stopped operating in early 1980 and excluding fuel. The removal of the reactor pressure vessel and structures began with the use of controlled costs for the blast furnaceHigh density concrete and steel that once held the isolation of the reactor vessel pressure position. [Video of the demolition] Therefore, the building was demolished. [Video of the palace finally pull] this week, the mortar at full pressure reactor vessel of a three-storey deep hole ... [Video pull] ... was loaded onto a specialized trailer lifted and transported several miles to a disposal facility for waste ... [Video] truck ... and finally coated in a landfill, which are filled with more and spend the mortar MailThe rest of eternity. [Video of the reactor] landfill while the internal components of the reactor are still radioactive, most of its environment were radiologically clean. To transport the reactor pressure vessel, the bottom, the inaccessible during the rest of the purge had been painted to secure radioactive material that could be attacked. [Sound bites Spruill] The Engineering Test Reactor was built more than fifty years to support the early development of nuclear energy...



http://www.youtube.com/watch?v=pM2kynbs-Uw&hl=en

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