Search and rescueSaving victims trapped under concrete
New tool allow first responders to reach those trapped beneath concrete more quickly; the tool generates a high-energy jolt to create a contained hole in the concrete; a series of these holes allows the creation of an area large enough to deliver vital supplies such as food, water, and medicine to victims before first responders are able to get victims to safety.
When the twin towers collapsed on 11 September 2001, one of the challenges that first responders faced was cutting through concrete to get to victims trapped under debris — a common problem when tragedy strikes.
Breaching reinforced concrete has long been a race against time when relying on drills, saws, and jackhammers – a race which those trapped under slabs of concrete, and those who were trying to rescue them, often lost.
DHS’s Science and Technology Directorate (S&T) has developed a new tool to help fire departments and search-and-rescue teams better deal with such challenges in the wake of natural and man-made disasters.
In 2007 S&T led the development of the Controlled Impact Rescue Tool (CIRT), designed to cut through concrete with speed and precision. The CIRT uses blank ammunition cartridges to drive a piston that generates a high-energy jolt to create a contained hole in the concrete. A series of these holes allows the creation of an area large enough to deliver vital supplies such as food, water, and medicine to victims before first responders are able to get victims to safety.
The force generated by the CIRT is concentrated in a localized area, minimizing threats to the safety of survivors and the potential destabilization of the surrounding structure. CIRT is the size of a small suitcase and weighs approximately 100 pounds, making it mobile enough for a pair of rescuers to hold against a wall, yet heavy enough to limit recoil that can cause injury. It is capable of breaching a reinforced concrete wall up to four times as fast as traditional methods.
Jalal Mapar, project manager in S&T’s Infrastructure Protection & Disaster Management Division his researchers have “refined the design to make it even more affordable for urban search-and-rescue teams across the nation.”
CIRT has now completed all phases on research, development, testing, and evaluation, and is currently being manufactured by Raytheon, S&T’s research partner on this project.
The Federal Emergency Management Agency (FEMA) has already acquired six CIRT units to add to their search-and-rescue capabilities. S&T also plans to distribute CIRT units to municipal search-and-rescue teams in Cincinnati, Los Angeles, Seattle, Fairfax County and Virginia Beach, Virginia, and Texas Disaster City, a training ground used by Urban Search and Rescue specialists.
