Bluegrass Technician to perform 2 cuts on a 14" (outside diameter) x 1-3/4" wall pipe above water.
Bluegrass will provide core drilling services in the support of SGRP N-1 outage scheduled for August 2012.
Working from a DP vessel, Bluegrass technicians made multiple cuts on 33" diameter legs at an average depth of eighty-five feet. Average cut time was one and a half hours per cut with each cut requiring the use of a single wire.
Quantity Dimensions of Cut Type
18 33 inches Conductor
18 22 inches Conductor
6 16 inches Conductor
4 44 inches Conductor
1 52 inches Leg
1 44 inches Pipe Leg
1 35 inches Pipe
Bluegrass technicians will diamond wire saw forty feet deep notch from side of lock for new bulkhead slots to expand lock chamber.
Waterford Nuclear Generating Station: Bluegrass to design, fabricate and deploy special equipment and diamond wires to dry cut structural components to provide access to remove the Steam Generators during the Waterford 3 RVCH and Steam Generator Replacement Project. Slated to begin in October of 2012.
Diamond wire sawed in support of steel mill refurbishing.
Diamond wire sawed copper furnace flameouts.
Performed test cutting of copper furnace flameouts.
Two 120-ton condensers were split in half so that four 60-ton sections could be removed. The diamond wire cut through 27,000 inconel tubes, steel pipes, and steel baffle plates.
Bluegrass technicians wire sawed three, twenty-five feet by six feet diameter steel encased caissons then segmented into thirds. Twenty-four core samples were then taken from each for experimental testing at Auburn University. One of the three concrete caissons will be utilized and extend eighty feet deep to support the new bridge.
Cut bridge caisson's 60' underwater.
Performed diamond wire sawing and Brokking for fish flume system.
Diamond wire sawed compressor foundations for sectioning.
Diamond wire sawed over 1,500 tons of highly activated and contaminated concrete surrounding the reactor vessel cavity to support the decommissioning.
Taking less than a week, two Bluegrass technicians diamond wire sawed multiple, four feet by eighteen feet bridge piers for removal after the new railroad bridge was built.
Bluegrass technicians diamond wire sawed twenty feet by two feet riser blocks during train traffic, which reduces track time for replacement.
Provided personnel and equipment to diamond wire saw fourteen piers and two bascules.
Bluegrass technicians scheduled to make two isolation cuts for slurry wall demolition which measures four feet by sixty feet at thirty feet tall.
For more project details visit The Brightwater Project.
Diamond wire sawed footer sections for bridge expansion retrofits.
Bluegrass technicians re-cut the slot in a Tennessee dam. Total square feet of concrete cut was approximately three thousand feet.
Performed segmentation of bridge columns for removal.
Wiresawed 14 piers and drilled nearly 300 core holes for anchor bolts, removing 121 cubic yards of concrete.
Bluegrass diamond wire cut the carbon steel reactor nozzle mock-up. The nozzle was 55” in diameter with a 28” annulus.
Bluegrass provided around-the-clock diamond wire cutting in support of SGRP. The entire 3’ thick roof sections, over four steam generators and enclosure walls, were diamond wire cut into 18, 15-ton sections and removed.
Performed diamond wire sawing to segment (2) 6' diameter piers in less than an hour on a railroad bridge.
Used Brokk robotic hammer to demolish 2, 68' diameter digester lids.
Bluegrass technicians dismantled mooring dolphin in large sections utilizing diamond wire saws with all cuts taking place above the water line. An estimated 1,000 square feet was cut.
Diamond wire sawed track beams including sole plates during plant shut down.
Bluegrass performed a technology demonstration of the Marcrist MSW300 Wall Concrete Shaver, mounted to a remotely operated Brokk 250, as part of the FIU-HCET technology assessment program. Six hundred feet of uncoated concrete walls, coated concrete ceilings and coated brick walls were removed at 1/4" depths.
The steam generators were to be removed and replaced through the containment dome. Bluegrass, using four robotic hammers around-the-clock, broke two large openings through the 3’ thick concrete with 3 layers of #18 rebar on 12” centers, while maintaining the integrity of the containment liner plate.
Diamond wire sawing of a section of the AUX Building Rail Road Bay Concrete Wall; 17'x3'7"x1'4" thick; Diamond wire sawed 12" off the top of existing man-way.
Bluegrass technicians diamond wire sawed two cuts at an elevation of forty feet within one foot of each other. The cuts were made in a vertical duct that is a nine feet diameter pipe with one inch thick steel and one foot of refractory.
Diamond wire sawed crest off of dam for installation of new flood gates.
Turnkey removal of discharge ring for turbine and generator upgrade. Provided diamond wire sawing, robotic hammering, and core drilling for concrete removal.
Bluegrass diamond wire cut a 250’ tall concrete ventilation stack located directly adjacent to the spent fuel storage area. Bluegrass cut the stack into ring sections of specified length, while working from a moveable, elevated platform. All cooling water was contained and recycled during the cutting process due to contamination potential.
WILLIAMS BROTHERS/TEXAS DOT
Bluegrass technicians dismantled three piers, including two hammerhead piers, at the intersection of Beltway 8 and Interstate 10 west of downtown Houston at elevations up to seventy feet. Four vertical cuts, two per cap were forty-nine square feet with twenty-two #14 bars and fifteen #8 bars. There were four cuts on the columns, which were fifty-six square feet each that have fifty-four #18 bars each. The remaining straddle bent required two vertical cuts sixty square feet each and consisted of forty-four #14 bars each and twelve #11 bars. The two seven feet diameter columns (34.5 sq/ft) were cut once under cap. Total cutting was estimated to be at six hundred seventy-seven square feet.
Pierce Elevated Bridge- Diamond wire sawed 100s of columns in downtown Houston for new bridge utilizing 3-4 saws dialy.
Diamond wire sawed debarker drum.
Diamond wire sawed three pairs of concrete slots into the lock walls so that stoplogs could be installed in the slots.
Diamond wire sawed slot for floating mooring bit.
Bluegrass technicians diamond wire sawed an ogee dam cut twelve feet by nine feet by three feet as well as core drilled three holes nine feet deep.
Performed concrete and metal wire cutting for decommissioning.
Bluegrass technicians manned the cooler change out around-the-clock. Technicians first hammered the refractory in a cooler with the Brokk 150. After completing work on the cooler, the foundation supporting the cooler was hammered into rubble.
With a combination of down hole and wrap cutting technicians segmented miter gate recesses for the lock extension.
Segmentation of lid by diamond wire saw for modifications to existing tank.
Cored drilled bridge caisson fifty feet deep at four inches in diameter for the Audubon Bridge Project.
For complete bridge project details visit: http://www.timedla.com/bridge/audubon/
dismantle upper structure of stadium for removations
Cut and removed 2 end risers from a steel boiler plate which were 11' diameter and 5" thick with a refractory lining 10 inches thick.
LIFT GATE REPLACEMENT
Bluegrass technicians diamond wire sawed 4’ square by 56’ vertical section, which required drilling a battered 56’ deep wire access hole and cut 56’ by 4’ twice per six areas then horizontally cut six times to section for rigging to allow for new lift gate slot equipment and new concrete.
Used 8 robotic hammers to break 600 cubid yards of concrete foundations in 4 days for roll mill upgrade.
Performed core drilling, wire sawing and robotic hammering at hydro electric facility.
Bluegrass technicians used four robotic hammers around the clock to demolish six feet by twenty-six feet diameter area that consisted of concrete, granite blocks, and brick from the railroad bridge turnstile pier for installation of new support system.
Read more about the project at ENR.com:
Diamond wire sawed pockets for miter gate gears which required cutting four each 25’ by 10’ on a 10 degree angle at 5’ deep.
Floor and Wall Shavers deployed by MOTA Corporation removed contaminated concrete to facilitate FSS operations during plant decommissioning.
Bluegrass will complete the surgical demolition of a foundation over a three to four month period. Scope includes drilling over three hundred, twenty inch diameter holes for expansive grout, diamond wire sawing, and robotic hammering. Twenty-five hundred cubic yards of concrete will be removed, with some portions saved.
Cut down a 30' diameter water intake tower with the last phase of the diamond wire sawing being done 100' underwater.
Diamond wire sawed and Brokking for fish bypass system.
Dimaond wire sawed 40" hexagons on the riser piers, core drilled over 600 holes for utilization of expansive grout, and Brokked the 1,000 yards of concrete to a rubble.
Diamond wire sawed in support of the Reactor Vessel Head Segmentation project as well as segmenting reactor head for transport.
Bluegrass performed a technology demonstration of the Marcrist Diamond Floor Shaver and MWS300 Wall Shaver, at the Rancho Seco Nuclear Power Plant turbine building, as requested by the DOE and EPRI, and in conjunction with the National Energy Technology Laboratory (NETL) and several nuclear utility companies. The floor and remote controlled surface decontamination shaving systems shaved concrete at 1/8” to 1/4“ depths, producing a completely smooth, finished surface.
Diamond wire sawed 3 motor support pedestals flush, 1 compressor foundation flush, and 3' x3' vertical cut to isolate the conduit block from the I-D foundation.
Performend diamond wire sawing in support of decommissioning of Unit 1 for the demolition of the Sphere Enclosure Building.
Removed a concrete section from a plug cut for a pipe insert.
Bluegrass technicians demolished the existing stage in The Southern Theatre with robotic hammers to be replaced with an upgraded hydraulic drop stage.
Diamond wire sawed openings in dam to create fish bypass system.
Bluegrass technicians will diamond wire saw 15 areas 75' down upstream wall.Total cutting is estimated at 7,695 square feet.
Phase one of five for foundation removal of twenty-five total pump piers. Each mobilization will include diamond wire sawing of five piers in half and flush for removal so that new foundations can be installed.
Bluegrass technicians wire sawed a notch from nine piers which required eight feet deep wire access holes. The removed blocks were thirteen tons each and required one vertical and one horizontal cut per pier.
Please click the links below for more details on these projects.
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