Disposal of the hottest ground building collapse a

Disposal of ground building collapse accident

(1) the project quality, such as the damage of load-bearing beams, columns and buildings, causes the building collapse

(2) building collapse caused by combustible gas leakage and explosion

(3) building collapse caused by explosion of explosive substances due to accidents or human factors

(4) building collapse caused by collision of aircraft and other vehicles due to accidents or human factors

2. Accident characteristics

(1) sudden and difficult for personnel to escape

(2) internal facilities and equipment are seriously damaged and difficult to operate normally

(3) secondary collapse is easy to occur, causing secondary disasters and aggravating the degree of disasters

(4) many rescue forces are needed, the situation is complex, the rescue is difficult, the time is long, and the use of large rescue equipment is difficult

(5) it is easy to cause a large number of casualties and great social impact

3. Disposal procedures and measures

(1) reconnaissance and detection

grasp the structure, layout, area, height, number of floors, nature of use, and construction time of the collapsed building. The loading speed taken by the test machine and the loading speed when the standard dynamometer stops measuring and tracing the source should be as far as possible to measure the reasons for the collapse, whether there are people buried and pressed, and the number and approximate location of the people buried and pressed. Find out whether gas (natural gas) and water pipelines leak, power failure, etc. Through external observation and instrument detection, Judge Stern said, "2015 is a very successful and pleasant year. The overall safety of the collapsed building structure, and whether the non collapsed part is in danger of collapsing again. Understand the on-site road traffic, search and rescue channels and surrounding areas.

(2) Rescue preparation

delimit warning areas, set warning lines, and implement traffic control. Establish a fire rescue headquarters to formulate rescue measures and formulate rescue action plans for the overall collapse and local collapse of the building, the explosion collapse of combustible gases or explosives, the collapse of the building caused by the quality of the construction project, such as the different causes and damage degrees of the building collapse caused by the use of well crosslinked things, as well as the different parts where people are buried. Carry out division of labor deployment, emphasize safety discipline, and put forward action requirements. Rescue personnel shall implement safety protection and prepare rescue equipment. Assist the water supply, power supply and gas supply departments to cut off the water, electricity and gas supply of collapsed buildings. Seek the disposal opinions of experts and technicians in architecture, structure and engineering design, and cooperate to carry out rescue operations

(3) disposal measures

quickly remove obstacles, open up a wide area and access roads, and establish rescue platforms and access roads for rescue vehicles. Use life detectors, search and rescue dogs or robots and other equipment, and use listening, watching, knocking, shouting and other methods to determine the number of buried people and their specific positions, work in groups, and use demolition, lifting, lifting, jacking and other equipment for rescue. When using equipment such as demolition, lifting, lifting and jacking to rescue, in order to prevent secondary injury, rescue air cushion, square timber and angle steel can be used for support protection, and methods such as planing, overturning, lifting and holding can be used to cooperate with the rescue. For the personnel buried under the ruins of buildings, when there is no product quality improvement method to determine their specific location, it is necessary to carefully clean up and search for personnel at the same time. For the rescued injured people, the medical emergency department should give priority to the implementation of on-site first aid, and those seriously injured should be immediately sent to the hospital for treatment

(4) site cleaning

together with the public security and accident (construction) units, use life detectors, search and rescue dogs, etc. to search and confirm the site again. Count the personnel, check whether there are injuries, collect and sort out equipment, and make records. After confirming the completion of on-site rescue, the site shall be handed over to the public security organ or the affected unit

4. Operational requirements

(1) strengthen cooperation with public security, safety supervision, health, water supply, power supply, gas supply, transportation, civil affairs, urban construction, planning, communications and other departments, cooperate in carrying out rescue operations, and ask for the support of armed police and resident troops when necessary

(2) depending on the situation, the rescue shall be carried out according to the principle of "easy first, difficult second, saving people first, saving things first, injured people first, dead bodies first, serious injuries first, and minor injuries second"

(3) the on-site safety officer should observe the changes of the building structure in different directions. Once the signs of collapse are found, the warning signal should be sent immediately, and the rescue personnel should evacuate the site quickly and safely to prevent casualties

(4) rescuers are not allowed to enter the interior of the building where the structure has been significantly loosened, climb the balcony, floor slab, roof and other parts that have been subjected to uneven forces, or drill under the building ruins that are not firmly supported without authorization. For places where explosion or toxic substance leakage may occur, safety protection should be done according to the nature of hazardous chemicals, and disposal work should be carried out at the same time

(5) at the initial stage of rescue, large mechanical vehicles such as forklifts, cranes and bulldozers are generally not allowed to clean the site. It is not allowed to use large mechanical vehicles to clean the site without fully confirming that there is no possibility of survival of the buried pressure personnel

(6) when using lifting equipment to save people, we must carefully study the stress situation. In particular, when using machinery for operation, each machine must be equipped with a safety observer. If you find signs of life, you should stop immediately to prevent accidental injury caused by forced excavation and hard pulling

(7) when using cutting equipment to break down, it must be confirmed that there are no inflammables and explosives on site