What are the characteristics of building collapse accidents?
1. Sudden, unpredictable, difficult to escape: building collapse is affected by building structure, building quality, natural conditions and other factors. Building (structure) collapse accidents may occur at any time, and the precursor of the accident is not obvious, and the time for people to escape is very short. When people are aware, the collapse accidents often have caused serious consequences.
2. It is easy to cause secondary disasters: sudden building collapse accident may cause the destruction of gas, power supply and other facilities inside the building, leading to the occurrence of fire.
3. It has great social influence.
4. Rescue is difficult: due to the large number of trapped people buried and waiting for rescue, the effectiveness of rescue operations is bound to weaken due to the limitation of equipment, and the post disaster rescue is often a long-term continuous operation.