Winter construction safety hazards and preventive measures?

The following is the relevant content about winter construction safety hazards and preventive measures brought to you by Zhongda Consulting for your reference.

1. What is winter construction?

According to the provisions of the "Winter Construction Regulations for Construction Engineering" (JGJ/T104-2011), winter construction will begin when the daily average outdoor temperature is stably below 5℃ for 5 consecutive days; Winter construction will be canceled when the temperature is higher than 5℃.

2. What are the sources of danger during winter construction?

1. The temperature in the north is low in winter, and construction work surfaces and roads are prone to ice and slippage. In addition, people wear bulky clothes in winter and their movements become relatively slow. Falling accidents from heights are prone to occur when working, and vehicle travel Traffic accidents may easily occur due to slipping.

2. Fires and electric shock accidents are caused when people use high-power electrical appliances for heating or boiling water.

3. Affected by bad weather such as heavy fog and heavy snow, vehicles may obstruct the driver's vision when traveling, making traffic accidents prone to occur.

4. Winter is relatively dry. Smoking in the dormitory area, using high-power electrical appliances, and stacking flammable materials in the warehouse can easily cause fires due to negligent management.

5. Low temperature causes certain changes in the performance of vehicles and machinery. Coupled with slippery roads, winter is a period of high incidence of mechanical injuries and vehicle injuries.

According to the above analysis of hazard sources, the following safety accidents are prone to occur during winter construction: In view of the above prone accidents, we should be more vigilant and prevent them during construction.

3. Common sense of fire safety in winter construction

(1) Fire safety in winter

Due to the low temperature in winter in the north, personnel must be careful during the heating process and production. The constant temperature process is prone to many fire accidents and safety hazards. In addition, the climate in the north is dry in winter, which can easily cause fires. Therefore, fire safety must be paid great attention to during winter construction.

1. On-site fire management of the project department

Strictly prevent the occurrence of electrical fires. The use of electric stoves, heaters and other high-power electrical appliances is strictly prohibited in dormitories.

It is prohibited to pull or connect wires without permission in the dormitory.

Open fires are not allowed for heating in the dormitories, and smoking in bed is strictly prohibited.

Onsite fire protection facilities should be inspected regularly and fire extinguishers should be replaced immediately if they are found to be ineffective.

2. Fire management of the central warehouse

The person in charge of the warehouse is fully responsible for the safety and fire prevention of the warehouse.

Fflammable items entering the warehouse must be stored according to category, and warning signs and fire extinguishers must be hung.

The storage and use of flammable and explosive materials shall be managed by dedicated personnel, and fire prevention measures shall be taken. Smoking and starting fires are strictly prohibited near the storage area of ??flammable and explosive materials. All types of gas cylinders are dangerous goods and should be stored 10m away from open flames. The storage distance between acetylene bottles and oxygen bottles should not be less than 5m, and they cannot be placed upside down.

3. Fire protection management at construction sites

Substation construction sites should prepare sufficient fire-fighting equipment, and designate dedicated personnel to maintain, manage, replace and keep the fire-fighting equipment to ensure that the fire-fighting equipment is complete and effective. Clear signs should be placed where fire-fighting equipment is stored, and all fire-fighting equipment must not be moved at will. Strengthen electricity management at construction sites to prevent electrical fires. Make sure the power supply is cut off after using electrical equipment.

It is strictly prohibited to use open flames for heating at the construction site. When working with open flames, you must have a fire permit. The fire permit can only be used by the person at the specified place and at the specified time.

When working with an open flame, a special person must be assigned to watch the fire. Before leaving the scene after the operation, the fire user must confirm that the fire has been extinguished and that there are no hidden dangers in the surrounding area.

When welding in the air, it is strictly prohibited to stack flammable and explosive materials below.

(2) Electricity safety in winter construction

Electric shock accidents are one of the most common accidents in construction. Such accidents are often caused by human negligence and illegal operations. Electricity consumption in winter is more than usual, and bad weather also has a certain impact on power lines. Therefore, during winter construction, electricity safety must be kept in mind.

1. The installation of wires, lamp holders, sockets and electrical equipment must be carried out by professional electricians. It is strictly prohibited to pull and connect wires without permission. It is prohibited to hang wires randomly and dry clothes on the wires or wires.

2. Electrical equipment at the construction site must be used strictly in accordance with the "one machine, one gate, one leakage, one box" system, and the electrical boxes should be locked at all times.

3. Before winter construction comes, electricians should conduct a comprehensive inspection and maintenance of all mechanical equipment and cables at the construction site, and immediately eliminate mechanical and electrical faults if they are found. In windy, rainy and snowy weather, carefully check the temporary power facilities on site and check whether the circuits, distribution boxes, etc. are safe and reliable. If there are any unsafe hazards such as deformation and leakage, repair and reinforce them in a timely manner. If there are serious hazards, production should be stopped immediately. Arrange the solution immediately to ensure the safety of electricity use.

4. It is strictly prohibited to use bare wires. Cables that are broken in more than three places must not be put into use.

5. 12v safety voltage must be used in humid places.

6. Power tools should be used after being inspected by a professional electrician. If the shell and handle of the power tool are found to be cracked, the power cord is damaged, or the plug is damaged, it must not be used. Dedicated grounding lines should be set up for welding operations.

7. When using power tools, the original plug of the power tool must not be removed or replaced. It is strictly prohibited to directly insert the cable metal wire into the power socket without using the plug. Power tools that have not been used for a long time and are subject to moisture should be consulted by a professional electrician before use.

8. Measure the insulation resistance to see if it meets the requirements.

9. Strengthen the management of electricity consumption during winter construction. Electricians check the performance of leakage switches every day, replace them in time if there are any abnormalities, and keep records.

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

Safety knowledge of working at heights in winter construction

Working at heights is one of the major sources of danger in construction under normal circumstances. In addition, the construction working surface in winter is slippery, making it easier to induce high altitudes. Fall Accident. Therefore, during winter construction, measures to prevent falling from high altitudes must be in place, and workers need to be more aware of safety during the operation.

1. Implement anti-skid safety measures and promptly clear snow on working surfaces and construction roads to prevent accidents caused by accidental falls while working or walking.

2. Wear tight overalls, non-slip shoes, safety helmets, and safety belts when working at heights; stop working at heights when encountering heavy fog, heavy snow, or strong winds above level 6.

3. Protective measures must be in place when working at heights. Ladder trucks must be inspected and accepted before they can be used. Ladder trucks must not be modified at any time.

4. Operators are not allowed to play or play when working at heights to avoid slipping and causing falling accidents. When going up and down ladders, they should face the ladder, hold on firmly with both hands, and do not climb with objects in hand.

5. When working at heights, it is strictly prohibited to throw objects up and down to avoid injuring construction workers below. Workers working at heights are strictly prohibited from throwing objects to avoid falling due to unstable center of gravity.

Winter construction management measures

1. Each team should focus on vehicle injury, electric shock prevention, and high-altitude falling prevention, and strengthen the prevention of fog, wind, rain, snow, etc. that are unique to winter. Safety education for workers working under adverse weather conditions and at night, and safety measures under corresponding special construction conditions should be added to the team safety briefing.

2. When encountering bad weather such as rain or snow, it is strictly forbidden to forcefully organize construction operations in rain, snow, strong winds and fog, especially hoisting operations; the working surface must be cleaned in time after frost, rain and snow, and the use of The temporary supports and edge protection facilities must be inspected by safety management personnel before they can continue to be used to prevent falling accidents caused by frost, rain and snow making the site too slippery.

3. Before starting work, you must carefully check whether the protective equipment you should wear is intact and wear it in place according to regulations.

4. Workers working at heights must wear non-slip shoes, protective gloves and other anti-slip and anti-freeze measures, and wear safety helmets and seat belts correctly as required. Plastic-soled shoes are not allowed. Before working, pay attention to check whether there is frost, snow or condensation water on the scaffolding. Clean the accumulated frost and snow on the scaffolding first, and ensure that there is no open water on the scaffolding body before working at height, and be careful of slipping. When working at heights, you must first fasten your safety belt and ensure that the safety belt is hung high and used low. It is not easy to work at heights for too long.

5. Pay attention to preventing hanging. It is cold in winter, and construction workers wear thick and long clothes to keep out the cold. This requires preventing their clothes from being caught in machinery and equipment during the construction process, causing personal injury. At the same time, it is strictly prohibited to wear gloves when operating mechanical equipment such as bench drills, electric drills, etc. that prohibit wearing gloves.

6. Pay attention to the anti-freeze and anti-condensation safety of construction machinery and equipment. All construction machinery and equipment in use should be subject to seasonal maintenance in conjunction with routine maintenance, and replace with lubricating oil, hydraulic oil, etc. suitable for use in cold seasons. .

7. In winter, the environment is dry and the use of fire and electricity increases.

In order to prevent fires, it is once again emphasized that smoking is strictly prohibited on site and the use of electric stoves, iodine tungsten lamps, high-power light bulbs and other methods for heating in the dormitories is prohibited. Electric mattresses for personal use must be closed when people walk to prevent fire accidents caused by power short circuits.

8. Strictly implement the fire permit system. There must be no flammable items near flammable materials, and it is prohibited to use open flames near flammable materials. Flammable materials used on site should be specially stacked. The distance between flammable materials stacking should comply with fire prevention regulations. Sufficient fire-fighting equipment should be provided in the flammable materials storage area. Misappropriation of fire-fighting equipment is strictly prohibited. Violators should be punished to ensure that fire-fighting equipment is in place.

9. It is strictly prohibited to use bare wires. Cables with more than three broken skins must not be put into use. The broken areas of the cables must be treated with waterproof insulating tape. The laying of cables must be anti-smashing, anti-crushing, and anti-wire. Frozen in ice and snow, electrical lines should be checked after heavy snowstorms to prevent cable disconnections and damage causing electric shock accidents.

10. Antifreeze measures should be taken for construction water and domestic water pipes on site. It is strictly forbidden to use running water for construction in winter, and water should not accumulate on the construction operating surface of the construction site to prevent safety hazards caused by slipping and injury after freezing.

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