Services: Removals

Services: Removals

Mass Concrete Removal

Seismic Mat Removal
Saltville, Virginia
When Stone & Webster, consultants to Virginia Electric Power Company (VEPCO) needed a qualified contractor to remove heavily reinforced concrete mats adjacent to operational reactors at VEPCO's North Anna facility in Saltville, Virginia, Controlled Demolition Incorporated (CDI) was called in. Foundation mats under a proposed powerhouse had been designed and constructed in accordance with then-existing seismic zoning. Following completion of foundation construction, seismic zoning was changed through the interpretation of statistics, necessitating the removal and replacement of facilities with more heavily reinforced plants. Controlled Demolition Incorporated completed preparation and blasting activities adjacent to operational reactors well ahead of schedule and within extremely conservative, vibration limits established by Stone & Webster.

Controlled Demolition Incorporated has completed 5 major DOE (Department of Energy) contracts without a single hour of lost man time. Blasting operations on nuclear reservations is usually geared more toward reduction of risk than increases in productivity. Controlled Demolition Incorporated's crew are fully RAD and OSHA trained to deal with radiological and site hazards. Controlled Demolition Incorporated's management team coordinates each step of the demolition operation with DOE representatives and site managers in strict accordance with ALARA guidelines established at each facility.

Princeton Accelerator Ring
Princeton, New Jersey
Consultants to The Trustees of Princeton University felt that the fragmentation and removal of particle shielding on the accelerator ring at The Forrestal Campus of/at Princeton University would cause untold problems for demolition contractors in the field. Controlled Demolition Incorporated (CDI) worked closely with prime contractor, Joseph B. Fay Company, as they approached the demolition of the structure. Through clear communications with the property owner and regulatory agencies involved, Controlled Demolition Incorporated was able to design and subsequently implement a drill and blast program that fragmented the massively reinforced particle accelerator shear walls made of high density concrete. The operation was performed safely, efficiently and on a critical fast schedule necessitated by further construction activities planned for the site.

Harry Diamond Labs Reactor
Washington, DC
When Harry Diamond Laboratory needed to eliminate the massively reinforced shielding of its test reactor in Washington, D.C., they contracted with Rockwell International to handle the overall project. After removing the radioactive materials associated with the project, Rockwell called in Controlled Demolition Incorporated (CDI) to fragment and remove the heavily reinforced walls which surrounded the reactor core.

Operating inside an environmental containment which was to be retained for use on further university studies, Controlled Demolition Incorporated was able to prepare and fragment the reactor structure well within the parameters and schedule constraints imposed by the contract documents.

Rock Removal

Guri Dam
Rio Caronni Basin, Venezuela
In 1976, CDI was called to the remote reaches of the Rio Caronni River in the jungles of Venezuela by Harza Engineering Company to support expansion of the Guri Dam for EDELCO, the national power consortium for Venezuela. At the request of senior engineer, Hans Hasen, CDI initially approached the delicate removal of rock adjacent to the Penstock tube outlets from the existing powerhouse. Blasting at the foot of one of the largest dams on earth in remote jungle conditions, CDI was able to dramatically shorten rock removal in tail race areas to improve the efficiency of existing hydroelectric units. At the request of Harza Associates of Chicago, CDI stayed on to remove sections of weir training wells, blast 68,000 cubic meters of rock alongside the powerhouse and finally to design and manage initial pre-splitting and removal operations for over 17 million cubic meters of rock for the powerhouse and outflow sections of the Guri Dam expansion.