What are the potential safety hazards and preventive measures in winter construction?

The following is the related contents of winter construction safety hazards and preventive measures brought by Zhong Da Consulting for your reference.

First, what is winter construction?

According to the Code for Winter Construction of Building Engineering (JGJ/T104-2011), winter construction starts when the outdoor daily average temperature is stable below 5℃ for five consecutive days. When the daily average outdoor temperature is higher than 5℃ for five consecutive days, the winter construction will be terminated.

Second, what are the hazards of winter construction?

1. The winter temperature in the north is low, and the construction surface and roads are easy to freeze and slip. In addition, people wear heavy clothes in winter, and their movements become relatively slow. When they are on the job, they are prone to fall accidents, and vehicles are also prone to traffic accidents due to skidding.

2, personnel in the use of high-power electrical appliances for heating or using high-power electrical appliances to boil water to induce fire and electric shock accidents.

3. Affected by bad weather such as fog and heavy snow, the vehicle blocks the driver's sight when driving, which is prone to traffic accidents.

4. It is dry in winter, smoking in dormitory area, using high-power electrical appliances, and stacking flammable materials in warehouse are all easy to cause fires due to neglect of management.

5. Low temperature will cause some changes in vehicle and mechanical properties. In addition, the road is slippery, and winter is the high incidence of mechanical injuries and vehicle injuries.

According to the above hazard analysis, the following safety accidents are prone to occur in winter construction: In view of the above accidents, we should be vigilant in construction and prevent problems before they happen.

Third, the winter construction fire safety knowledge

(1) Fire safety in winter

Due to the low temperature in northern winter, many fire accidents are prone to occur in the heating process and constant temperature process in production, and the dry climate in northern winter is prone to fire. Therefore, we must attach great importance to fire safety in winter construction.

1, Fire Management of Project Department

In order to prevent electrical fire, it is forbidden to use electric furnaces, rapid heating and other high-power appliances in the dormitory.

Without permission, it is forbidden to pull the wires in the dormitory.

Open fire is not allowed to keep warm in the dormitory, and smoking in bed is strictly prohibited.

Check the residents' fire-fighting facilities on time, and replace the fire extinguisher immediately if it is ineffective.

2, the central warehouse fire management

The warehouse manager shall be fully responsible for the safety and fire prevention of the warehouse.

Flammable articles entering the warehouse should be classified and stored, and warning signs and fire extinguishers should be hung.

The storage and use of inflammable and explosive articles should be managed by special personnel, and fire prevention measures should be taken. Smoking and hot work are strictly prohibited near the storage area of inflammable and explosive articles. All kinds of gas cylinders are dangerous goods and should be stored away from open flames 10m. The storage distance of acetylene cylinder and oxygen cylinder shall not be less than 5m, and shall not be inverted.

3, the construction site fire management

The substation construction site shall be equipped with sufficient fire-fighting equipment, and designated persons shall be assigned for maintenance, management, replacement and storage to ensure that the fire-fighting equipment is complete and effective. The place where fire-fighting equipment is stored shall be clearly marked, and all fire-fighting equipment shall not be moved at will. Strengthen the management of electricity consumption in the construction site, prevent electrical fire, and ensure that the power supply of electrical equipment has been cut off after use.

It is forbidden to use open flame for heating on the construction site. When working with naked flame, a hot work permit must be obtained. The hot work permit can only be used by myself at the specified place and time.

When working with naked flame, you must designate a special person to watch the fire. Before leaving the site after the operation, the firemen should confirm that the fire has been put out and there are no hidden dangers around.

When welding in the air, it is forbidden to pile up inflammable and explosive articles below.

(B) winter construction electricity safety

Electric shock accident is one of the most common accidents in building construction, which is often caused by human negligence and illegal operation. In winter, electricity consumption is more than usual, and bad weather also has a certain impact on power lines, so in winter construction, we must keep in mind the safety of electricity consumption.

1, the installation of wires, lamp holders and electrical equipment must be carried out by professional electricians, and it is strictly forbidden to connect the lines without permission. It is strictly forbidden to hang wires and dry clothes on electricity and the Internet.

2. The electrical equipment on the construction site must be used in strict accordance with the system of "one machine, one brake, one box and one leakage", and the electrical box should be locked at any time.

3. Before the arrival of winter construction, electricians should conduct a comprehensive inspection and maintenance of all mechanical equipment and cables on the construction site, and immediately eliminate electromechanical faults when they are found. In windy, rainy and snowy weather, carefully check the temporary electricity facilities on site and check whether the circuit and distribution box are safe and reliable. If there are any hidden dangers such as deformation and leakage, repair and reinforce them in time. If there are serious hidden dangers, stop production immediately and arrange solutions immediately to ensure the safety of electricity consumption.

4. Bare wires are strictly prohibited, and cables with three or more broken skins shall not be put into use.

5. 12v safe voltage should be used in wet places.

6, electric tools should be used after inspection by a professional electrician, found that the shell of electric tools, handle damage, power cord damage, plug damage shall not be used. Special grounding wire shall be set for welding operation.

7. When using power tools, the original plug of power tools shall not be removed or replaced. It is strictly forbidden to directly plug the cable into the power socket without using a plug. Before using electric tools that are not used for a long time and are wet, a professional electrician should be appointed first.

8. Measure whether the insulation resistance meets the requirements.

9, strengthen the management of winter construction electricity, electrician check the performance of the leakage switch every day, if there is any abnormality, timely replacement, and make records.

10, when using electric tools, should first check whether the power supply has a leakage protector.

Safety knowledge of high altitude construction in winter.

In general, aerial work is one of the major hazards in construction, and the slippery construction surface in winter is more likely to induce falling accidents. Therefore, in winter construction, measures to prevent falling from high altitude must be put in place, and workers' safety awareness during operation also needs to be put in place.

1, implement anti-skid safety measures, clear the snow on the operation surface and construction road in time, and prevent accidents caused by accidental falls during operation or walking.

2. Wear tight overalls, non-slip shoes, safety helmet and safety belt when working high above the ground; When encountering heavy fog, heavy snow and strong winds of magnitude 6 or above, it is necessary to stop working at heights.

3. When working high above the ground, protective measures must be in place, and the ladder truck can only be used after passing the acceptance. The ladder truck shall not be modified at any time.

4. Operators are not allowed to play when working at heights, so as to avoid falling accidents. When climbing up and down the ladder, they should face the ladder, keep their hands steady, and do not climb objects with objects.

5. It is forbidden to throw objects up and down when working high above the ground, so as not to hurt the lower construction personnel. It is forbidden to throw objects when working high above the ground, so as not to fall due to the unstable center of gravity.

Winter construction management measures

1, each team should focus on vehicle injury, prevention of electric shock and falling from high altitude, strengthen safety education for workers in severe weather conditions such as fog, wind, rain and snow peculiar to winter and night, and add corresponding safety measures under special construction conditions in safety team disclosure.

2. In case of bad weather such as rain and snow, it is forbidden to organize construction operations, especially hoisting operations, in rain, snow and foggy weather; After frost, rain and snow, the operation surface should be cleaned in time, and the temporary support and temporary protection facilities used must be inspected by safety management personnel before they can be used again to prevent falling accidents from heights due to frost, rain and snow.

3, must carefully check before mount guard should wear protective equipment are in good condition, and wear in place by the regulation.

4, high homework personnel must wear anti-skid shoes, protective gloves and other anti-skid and anti-freezing measures, and correctly wear safety helmet and fasten your seat belt as required. Do not wear plastic shoes. Before operation, check whether there is frost, snow or condensed water on the scaffold, remove the frost and snow accumulated on the scaffold first, and ensure that there is no Mingshui on the scaffold before climbing, and pay attention to anti-skid. You must fasten your seat belt before working at height, so as to ensure that the seat belt is hung high and used low, and it is not easy to work at height for too long.

5, pay attention to prevent hanging. In winter, the weather is cold, and construction workers wear thick clothes to keep out the cold. During construction, it is necessary to prevent clothes from hanging into mechanical equipment and causing personal injury. At the same time, it is forbidden to wear gloves when operating bench drills, electric drills and other mechanical equipment.

6. Pay attention to the anti-freezing and anti-coagulation safety of construction machinery and equipment. All construction machinery and equipment in use should be maintained seasonally in combination with daily maintenance, and lubricating oil and hydraulic oil suitable for cold season should be replaced.

7. In winter, the environment is dry and dry, and the use of fire and electricity increases. In order to prevent fire, it is once again emphasized that smoking is strictly prohibited in the dormitory, and it is forbidden to use electric stoves, iodine tungsten lamp and high-power light bulbs for heating. When people leave, they should turn off the electric mattress for their own use to prevent the short circuit of power supply from causing fire accidents.

8. Strictly implement the hot card system. There shall be no combustible materials near combustible materials, and open flames are strictly prohibited near combustible materials. Flammable materials used on site should be specially stacked, and the stacking distance of flammable materials should comply with fire prevention regulations. There should be enough fire-fighting equipment in the flammable material stacking area, and misappropriation of fire-fighting equipment is strictly prohibited. Violators should be punished to ensure that fire fighting equipment is in place.

9. Bare wires are strictly prohibited, and cables with three or more damaged sheaths shall not be put into use. The damaged sheaths of cables must be treated with waterproof insulating tape, and cables shall be laid to prevent smashing and rolling, so as to prevent wires from freezing in the snow and ice. After the snowstorm, the electrical circuits shall be checked to prevent cable damage and damage from causing electric shock accidents.

10, anti-freezing measures for construction water and domestic water pipelines at the site. It is forbidden to use tap water in winter, and there must be no accumulated water on the operation surface of the construction site to prevent the potential safety hazard of slipping and injuring people after freezing.

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