China News Service, Changsha, May 2 (Fu Jingyi and Yang Huafeng) On the evening of May 2, the third press conference on the collapse of Changsha residents' self-built houses was held to report the latest situation of accident rescue.
As of 19:22 that day, 8 trapped people have been rescued from the accident scene.
At the press conference, in response to the question of "why not to use large-scale equipment lifting and excavation (commonly known as 'lifting the lid') for rescue", Chen Dachuan, a professor at the School of Civil Engineering of Hunan University and deputy head of the on-site emergency rescue expert group, explained that, During the rescue process, we have always adhered to the principle of "people first, life first", and ensured the safety of the trapped people as the first priority. The current rescue methods are all implemented according to this principle.
According to the rescue rules of the fire department, during the 72-hour golden rescue period, as long as there are any signs of survivors, large-scale machinery and equipment cannot be used; after 72 hours, if there are still survivors who have not been rescued, large-scale machinery and equipment cannot be used. Inflict secondary damage.
In the early morning of May 2, rescuers used life detection equipment to find the trapped people.
Photo by Yang Huafeng
Chen Dachuan said that before it was found that there were signs of life in the trapped people, the fire department adopted fixed-point digging to carry out rescue, and the ruins were in an unstable state of follow-up balance. In order to ensure successful rescue, any disturbance of the ruins is strictly prohibited.
If the method of "lifting the lid" is adopted, the disturbance caused by large equipment is likely to cause new collapses, which will not only cause secondary damage to the trapped people, but also damage the existing rescue channels and seriously threaten the trapped people. and the safety of rescuers.
According to Chen Dachuan, a slight landslide occurred in the rubble late at night on the 1st, and both the rescue passage collapsed by about 10 cm, adding greater difficulties to the rescue work; Reinforced with lateral support.
Therefore, only after the trapped persons with signs of life have completed the rescue, it is possible to use large-scale equipment to enter the site to lift and excavate, and use the method of "lifting the lid" for rescue.
At the same time, it is also necessary to reinforce the houses on both sides to ensure that there is no secondary collapse before it can be carried out.
Li Wencai, deputy leader of the Changsha Fire Rescue Detachment, said that in the next step, the on-site rescue forces will continue to race against time, never give up, never abandon, continue to fight, adhere to the concept of "people first, life first", never let go of any signs of life, and never let go. Let go of any corner.
(Finish)