Aerial accident type and case analysis

First, the security situation at a height of work <br> In recent years, the scale of our company's engineering construction has continued to expand, and the project has been transferred to the construction of a mountainous area or a third park with more complex engineering conditions. The proportion of bridges and tunnels has increased, and high-rise piers and bridges have increased. The amount of construction work for deep digging and high filling has increased, and special equipment has been used in large quantities. The safety risk of project construction is outstanding. Although various projects have done a lot of work in accordance with the safety standards of the Bureau and the company and according to the safety standards for construction sites, the problems that still exist are: the safety production management capacity of some projects is insufficient; the responsibility for safety production supervision has not been fulfilled; safety inspections, hidden dangers Check the governance work flow in the form of; the high risk of construction safety and the ability of the working team are slightly lower; the safety production responsibility system is not in place, and the safety investment is insufficient. The following is a statistical analysis of the common accidents at work at heights and the use of accident lessons to promote safety management, eliminate safety hazards and prevent accidents.

Second, high-altitude operations accident analysis
1, data statistics
According to statistics, from 2009 to 2011, there were 28 accidents in highway construction in Henan Province, and 32 people were injured.
2, the type of accident classification
Falling from a height and mechanical damage are the main types of accidents. This reflected problems such as inadequate safety protection measures at the construction site, problems with the convenience of the operators, weak awareness of safety, etc. At the same time, it also reflected the poor construction supervision, illegal command, and illegal operation, resulting in poor rectification of safety hazards.
3, the accident 24 hours distribution
7 accidents occurred between 6:30 and 9:00, accounting for 25% of the total number of incidents; 5 accidents occurred between 11:30 and 14:30 noon, 17.9% of the total accidents occurred; occurred at 17:00 pm Eight accidents occurred between 00 and 21:00, accounting for 28.6% of the total accidents. The total number of accidents before and after the commuting period reached 20, accounting for 71.4% of the total number of accidents.

Three, high-altitude pictures

High-altitude operation 1:

The outer side of the collision fence shall be constructed with a firm footing at the suspended work site. In the absence of a fixed working platform, the construction personnel must use a safety belt .

High-altitude operation 2:

High-altitude operations without safety nets, no safety belts, no fixed escalators with cover beams

High-altitude operation 3:

Security risks: No safety ladders and platforms available, people risk climbing

High-altitude 4:

Falling Hidden Dangers at High Height: The Covering Beams are Not Fixed

High-altitude 5:

When working at heights where the brackets are removed, construction workers must use seat belts where there is no fixed working platform.

Fourth, the characteristics of high-fall accidents <br> High-end operations when the four sides of the air, poor security conditions, many risk factors, the accident rate is high and the consequences are serious. People at work at high altitude are inherently dangerous. They do not rely on the ground. Even if they accidentally fall, they are on the ground. Generally, no accidents occur. However, the operation at a height is different. Its safety depends on various protective facilities (guardrails, safety nets, safety belts, safety helmets) and related auxiliary facilities. If these facilities are defective, if they are not secure or if they are used improperly, accidents can occur. According to statistics, the death toll from high places accounts for more than 10% of the total number of deaths caused by corporate casualties in the country. On the other hand, the consequences of a fall from a high altitude are serious. Generally falling from a height of more than 2m will cause death and death. The majority of deaths will be serious injuries and minor injuries.

V. High-fall accidents
Case accident passed
On the day of the month of 2009, the two construction workers, Su Moumou and others, bundled and transported materials under the No. 0 support block of the N1 bearing platform of the Bridge Project. After the work was completed, Su Moumou went to the No. 0 block support frame of N1 to assist the head of the steel structure team, Liao Moumou, and other three people to install I-beams. Su Moumou was not wearing a seatbelt standing on the side of the platform to assist Liao Moumou and other lifting I-beams, Liao Moumou did not urge it to fasten the seat belts. Because I-steel is a single wire rope lifting and swinging, Su Moumou leaned out of the platform outside the platform, did not catch the I-beam center instability, fell from the top of the N1 bearing platform No. 0 block platform to the bearing platform below The safety shed of the passageway is then dropped onto the passage of the platform. The project department sent Su Moum to the local hospital immediately and died because of serious injuries. He died in 3 days.