Joint Investigation of Sinkholes (Road Collapses) on 232km Road Section in Jungnang-gu

Investing 400 Million in Ground-Penetrating Radar Exploration to Detect and Repair Hidden Road Cavities... Proactive Cavity Investigation and Continuous Road Maintenance to Prevent Safety Accidents

[Asia Economy Reporter Park Jong-il] Jungnang-gu (Mayor Ryu Kyung-gi) will conduct a joint investigation on a total of 232 km of old roads over 4 meters in length within the district to prevent safety accidents caused by ground subsidence and road collapses.

"Gongdong" refers to empty spaces existing beneath the surface, which, if left unattended, can cause road collapses commonly known as "sinkholes," posing a risk of accidents.

The district will invest 400 million KRW and conduct ground-penetrating radar (GPR) surveys on 232 km of roads where water and sewage pipes, electrical and communication facilities, and gas pipes are buried, by November.

The ground-penetrating radar survey is an exploration method using electromagnetic waves, effective in detecting hidden empty spaces beneath roads.

The survey will be conducted in two stages: a primary survey using vehicle-mounted radar and a secondary survey using drilling and endoscopy. In the primary survey, a vehicle equipped with ground-penetrating radar captures underground structures to identify the location of voids, and the secondary survey confirms the depth and width of the cavities.

Discovered voids will be promptly filled with fluidized filling materials for restoration.

Ryu Kyung-gi, Mayor of Jungnang-gu, said, "We will prevent road collapse accidents in advance through proactive joint investigations," adding, "We will establish an underground safety management system to create an environment where residents can use roads with peace of mind."

This content was produced with the assistance of AI translation services.