What are the specific contents of construction safety precautions in high temperature and rainy season? Zhong Da Consulting will answer your questions below.

Construction in summer is affected by unfavorable environmental factors such as high temperature, rainy weather and strong wind, which can directly endanger production safety and bring immeasurable losses to units and individuals. Therefore, it is of great significance to organize construction scientifically and reasonably, take safe and effective construction technical measures, actively deal with various dangerous factors in rainy season construction, improve the ability to resist risks and ensure personal safety.

A, high temperature and rainy season construction safety management overall requirements

1, to ensure smooth information.

Due to the uncertainty and suddenness of disastrous weather such as construction storm in summer, it is difficult to predict the degree of damage to production and life, so it is necessary to strengthen the collection and management of meteorological information. Therefore, the Construction Management Office is required to grasp the information collection and collation of severe weather such as rainstorm in time, and the comprehensive office will release it in time and notify it in place through office network, QQ group and SMS. The mobile phones of cadres above the deputy director of the Construction Bureau, the person in charge of the outsourcing team and the person in charge of the labor service company (including the on-site person in charge) are turned on 24 hours to ensure the smooth flow of information.

2, the comprehensiveness of safety protection

Because the construction site covers a wide range, including the safety protection, mixing, sand and other operating systems and temporary facilities on the construction site, as well as the safety of all construction personnel, it is necessary to be meticulous and thoughtful when formulating safety measures, so as not to lose too much because of trifles, so as not to leave potential safety hazards.

3. Scientific organizational construction

When compiling the construction organization design, the technical room and equipment and materials room should combine the characteristics of high temperature and rainy season construction and fully consider the safety precautions that should be taken during this period. The construction management office should arrange the work reasonably according to the weather conditions, and stop the construction in case of stormy weather.

4. Respond quickly and do a good job in flood control and disaster relief.

During the construction in hot and rainy season, it is necessary to further strengthen the safety protection of upstream and downstream cofferdams, scaffolding, high slopes, landslide settlement parts, gantry cranes, trusses, living camps and other parts, facilities and equipment, to ensure that emergency relief materials and personnel can be in place in time, and to immediately start emergency rescue plans in case of danger.

Second, the high temperature and rainy season construction preparation measures

1, reasonably arrange the work and rest time

In summer construction, try to avoid the high temperature period at noon, and compress at both ends in the morning and evening. When the temperature exceeds 37 degrees Celsius, outdoor operation should be stopped (except concrete pouring, but the heatstroke prevention and cooling work of concrete pouring construction personnel must be done well), and ventilation and cooling measures should be taken during indoor operation. In case of severe stormy weather, all operations should be stopped and personnel and equipment should be evacuated to a safe place.

2, to do a good job of site drainage

1) According to the masonry conditions of sand and gravel system (including A 1\A2 stope and Dongjiagou slag yard), right bank mixing system, 35KV substation, Guantianba Waterworks and auxiliary enterprises, 1 #-4 # living camp, right non-slope, upstream and downstream cofferdams and their shiplocks, before the rainy season comes,

2) Do a good job in cleaning up the dangerous stones and controlling the slope safety on the above-mentioned construction site to prevent natural disasters such as landslides and landslides.

3) In strict accordance with the flood control requirements, continuous and unimpeded drainage facilities and emergency relief materials, such as water pumps and related equipment, plastic sheets and other materials, shall be set up at the construction sites such as the Phase III lock.

4) Ensure smooth construction roads. According to the actual situation of the road surface, the road surface should be hardened or paved with crushed stone and crushed stone materials respectively, and the arch should be arched as required, and the road surface should be maintained by designated personnel.

Three, high temperature and rainy season construction specific safety precautions

1) Prevent heatstroke

Heatstroke refers to an acute disease in which the central nervous system is disordered due to the long-term effect of high temperature and thermal radiation. Heatstroke can be divided into threatened heatstroke, mild heatstroke and severe heatstroke.

The main symptoms of threatened heatstroke are: headache, dizziness, thirst, excessive sweating, dizziness, tinnitus, nausea and palpitation, weakness and pain in limbs, inattention, uncoordinated movements and other symptoms, and abnormal or slightly elevated body temperature. In this case, the patient should be transferred to a cool and ventilated place in time to replenish water and salt, and recover in a short time.

The main symptoms of mild heatstroke are: the body temperature is often above 38 degrees Celsius. Besides headache, dizziness and thirst, symptoms such as flushing, sweating and burning skin often appear, or cold limbs, pale face, decreased blood pressure and accelerated pulse. Mild heatstroke can often be recovered within a few hours if it is treated in time.

When patients have symptoms of threatened heatstroke and mild heatstroke, they should quickly evacuate the high temperature environment that caused the department, choose a cool and ventilated place to rest, unbutton their clothes and rest on their backs; Apply a cold towel to your head. If possible, wipe your body with 30% alcohol to cool down. You can also apply cool oil and wind oil to your forehead and neck, and drink some light salt water or cool drinks. Sober people can take Ren Dan, mung bean soup or ten drops of water, Huoxiang Zhengqi water and other traditional Chinese medicines. If the blood pressure drops and collapses, you should lie flat immediately and be sent to the hospital for treatment in time; Patients with severe heatstroke should be sent to hospital quickly for treatment.

In view of the open-air operation in the construction site of Phase III lock, sand and gravel (including stope) and mixing system, relevant departments and work areas should do the following work:

1. The general office and each work area should take "heatstroke prevention and cooling" and "heatstroke prevention and cooling" as the key work according to the characteristics of high temperature and rainy in summer. On the one hand, operators are required to wear well-dressed personal labor protection articles, such as safety double insurance, insulating shoes, insulating gloves and so on. On the other hand, front-line staff should be equipped with heatstroke prevention and cooling drugs, such as ten drops of water and Huoxiang Zhengqi water. Enough cold boiled water should be prepared in the canteen ahead. When necessary, licorice or a little salt can be added separately to supplement human body moisture. Especially in the high temperature period, popsicles, cold drinks, mung bean soup or watermelon should be distributed to the hands and feet of front-line workers in time, and soup should be added when Chinese food is taken out.

2. The construction management office and related work areas should arrange front-line workers to avoid the high temperature period at noon according to the weather conditions, and try to compress them at both ends in the morning and evening. It is forbidden to work overtime and fatigue for a long time. Under normal circumstances, continuous operation in high temperature period shall not exceed 5 hours.

3. When working outdoors, try to avoid being exposed to the scorching sun for a long time, and beware of heatstroke. Workers feel chest tightness, shortness of breath and dizziness, which should be judged as a precursor of heatstroke. In order to prevent workers from suffering from heatstroke at or near heights, a second person should be appointed to supervise. In case of heatstroke or threatened heatstroke, stop the operation immediately and transfer the personnel to a cool and ventilated place. If the situation is serious, it should be immediately rescued or sent to hospital for treatment.

4. Each team and outsourcing team in the work area should take "heatstroke prevention and cooling" as an important content of "Five minutes before going to work and risk prediction activities" to explain and publicize the basic knowledge of heatstroke prevention and cooling and emergency rescue methods among employees. Each team leader and the on-site person in charge of the outsourcing team should focus on the physical rest of the operators in high places, high sides, high temperatures and pressure vessels to prevent the construction workers from heatstroke.

When you come back from the heat, avoid "rapid cooling". Don't blow the air conditioner or electric fan, and don't take a cold shower immediately. This will make the pores of the whole body close quickly, and it is difficult to dissipate the heat in the body. It will also cause insufficient blood supply to the brain due to rapid contraction of blood vessels, which will make people dizzy and suddenly cause diseases.

6. During indoor operation, ventilation and cooling measures should be taken in each operation area.

2), to prevent electric shock

When the shell of electrical equipment or wires and cables are electrified due to insulation damage, there is no sign of electrification, and people will not have any premonition of the danger of electric shock, which is often prone to electric shock accidents. Most electric shock accidents occur on electrical equipment and distribution equipment. Among all electrical accidents, unforeseeable and irresistible accidents are very few, and a large number of electrical accidents can still be prevented by practical and effective measures.

1, basic safety regulations for preventing electric shock on construction site

1) Strictly implement the "three-level distribution secondary protection", namely: First, TN-S grounding and neutral protection system must be adopted; Second, a three-level distribution system must be adopted; The third is to adopt two-stage leakage protector measures, that is, leakage switches must be installed in the main distribution box and switch box during the whole construction site power consumption process.

2) Leakage protector

Its function is to prevent electric shock accidents caused by electrical equipment and line leakage, to prevent fire accidents caused by equipment leakage, to monitor or cut off grounding faults, and to automatically cut off power supply when equipment leakage and dangerous grounding voltage appear in the shell.

3) Welding operations such as steel bar welding and butt welding shall not be carried out in the open air in rainy days. Due to the need of work, do a good job of rain protection. And ensure that the welding machine and electrode holder are dry, and eliminate the possibility of no leakage; Electric welding operators are required to wear neat personal safety protection articles.

4) During welding operation in high temperature season, it is forbidden to expose limbs and trunk. When the welding operation is stopped, covered electrode should be removed from the electrode holder in time, so as to avoid short circuit caused by covered electrode's contact with bare limbs and trunk. It is forbidden to carry out electric welding with bare hands, so as to avoid leakage and short circuit accidents caused by sweat wetting the electrode holder.

5) When pouring concrete in rainy days, always pay attention to and prevent the possibility of leakage of lighting lamps, vibrating rods, flexible shaft rods, frequency converters, submersible pumps and their wires and cables. The above electrical equipment should adopt leakage protector. It is forbidden to use iodine tungsten lamp lighting and iodine tungsten lamp to bake clothes. Wet hands must not touch the power switch of the vibrator.

6) Each pumping point of the lock foundation pit pumping team shall be equipped with 2 people per shift, and the staff shall be required to take shifts to prevent mechanical and electrical faults from harming equipment and personnel.

7) Strengthen the safety management of on-site electricity facilities, equipment and cables, and prohibit non-professional electricians from carrying out various electrician operations. The comprehensive office, equipment and materials department, each work area and outsourcing team should strengthen the certificate management of electricians and other special operators, and the safety supervision department should strengthen supervision. It is forbidden for non-professional electricians to operate illegally, such as checking or not checking electricity with the back of their hands, not cutting off power, not listing, not being supervised by special personnel, not wearing insulating shoes, etc. When power transmission is stopped (especially for high-voltage operation), the system of "two votes and three systems" should be strictly implemented, emergency work of sudden power failure in thunderstorm weather should be done well, and safety precautions should be taken to prevent secondary power transmission or sudden call.

8) No one is allowed to change the safety measures of "three-level distribution and two-level protection" on the construction site without authorization. 1. When the leakage protector trips, find out the reason. It is forbidden to cancel the trip coil of the leakage protector or replace the leakage protector with an ordinary electrical switch. .

9) It is forbidden to use lifting wire rope and high-speed wire rope of portal tower crane as welding current channel, and it is forbidden to use ordinary cable as grounding wire or clamping wire of electric welding machine.

10) in the process of treating people who get an electric shock, we should earnestly do a good job in on-site safety alert to prevent secondary accidents caused by electric leakage. When an electric shock accident occurs, the person who gets an electric shock should first take self-help measures and try to get rid of the power supply. When the person who gets an electric shock is sober-minded and can move his limbs, he should put his feet together and jump out of the leakage site to avoid striding to prevent the formation of striding voltage. When the second person carries out rescue, it is forbidden to pull the electrocuted person directly by hand, but should use insulation such as wooden sticks and clothes to pull the electrocuted person or stop the power switch.

Basic countermeasures to prevent personal electric shock casualties

1) organizational measures to strengthen the safety management of electricity consumption

(1) personnel management: personnel engaged in electric power operations must have necessary electrical knowledge and business skills, as well as necessary safety knowledge and emergency rescue methods. Personnel engaged in electric power operations must be trained and assessed by the local quality and technical supervision department, and obtain the electrician's special operation certificate. Non-electrical professionals are strictly prohibited from operating electrical equipment.

(2) Rules and regulations: We must conscientiously implement the Electrical Safety Work Regulations, the Electrician Operation Regulations and the relevant provisions of the rules and regulations of the Construction Bureau to ensure the personal safety of staff and equipment and keep electrical equipment in good and safe operation.

(3) Safety education and publicity: In addition to the ideological education of "safety first" for workers and electricians, their technical and professional level can be improved through technical training, on-the-job training and accident drills. , we should also vigorously carry out publicity on safe use of electricity, popularize the basic knowledge of safe use of electricity, make all power users master the basic methods of safe use of electricity, and improve the safety awareness and level of the majority of power users.

(4) Electricity consumption management and safety inspection: conduct regular safety inspection, deal with the found defects and hidden dangers in time, and correct the unsafe factors and illegal behaviors in electricity consumption in time. Power management should strictly control "three levels", namely, operation quality, operation technology and safety maintenance.

3, the basic measures to prevent personal electric shock casualties:

2) Illegal operation causes electric shock.

If you get an electric shock on the power transformation and distribution equipment, such accidents are mostly caused by careless and illegal operation of electrical workers, failure to implement working tickets, operation tickets and monitoring systems, failure to implement power failure, electricity inspection, discharge, grounding wire installation, hanging signs, fencing and other regulations, and violation of safety operation procedures.

4. In order to prevent such accidents, the following basic safety measures should be taken:

(1) Strengthen safety education, raise safety awareness, and strictly implement "two votes and three systems".

(2) Seriously study all kinds of electrical operation rules and regulations, and constantly improve the theoretical and technical level.

(3) Electrical operators should receive corresponding training and examination within the specified time, and can only work at their posts after passing the examination.

(6) Work in strict accordance with electrical safety regulations, and it is forbidden to stop or send electricity orally.

(7) Work in danger of electric shock should be supervised by designated personnel, and full-time guardians must be serious and responsible, and may not hold other jobs concurrently. Except in special circumstances, no one is allowed to engage in electrical work, especially live work.

(8) Improve various electrical operation rules and regulations, implement safety responsibilities, strictly abide by labor discipline, conduct strict safety assessment, and pay close attention to habitual violations.

3) unqualified equipment installation leads to electric shock.

The provisions of "three-level distribution and two-level protection" were not implemented in the construction site.

In order to prevent such accidents, the following basic safety measures should be taken:

(1) Strengthen personnel training and education to improve personnel quality. Adhere to the principle and act according to the rules to ensure the installation quality.

(2) It is forbidden to connect electrical equipment without permission, and qualified electrical equipment should be adopted.

(3) Strictly abide by the rules and regulations and act according to the rules.

(4) Work hard, be careless and pretend to understand.

(5) Carry out regular equipment maintenance and repair to eliminate potential accidents.

5, personal electric shock scene emergency rescue

Electric shock accidents often occur in an instant, and the situation is critical. There can be no hesitation. Time is life.

After electric shock, some people may die or die clinically, even though their heartbeat and breathing have stopped. If the rescue is correct and timely, it is generally possible to save lives. Whether you can save the life of an electric shock depends on whether you can quickly get rid of the power supply and carry out correct emergency rescue.

1) is out of power.

When people get an electric shock, the first thing to do is to disconnect the electric shock victim from the power supply, which is the key to first aid the electric shock victim. However, before the person who gets an electric shock leaves the power supply, the emergency personnel are not allowed to directly pull the person who gets an electric shock by hand to prevent the emergency personnel from getting an electric shock. In order to get the electric shock person out of the power supply, emergency personnel should take appropriate methods and measures decisively according to the on-site situation. There are generally the following methods and measures to get rid of power supply.

(1) Low voltage electric shock is out of power supply.

If there is a power switch or plug near the low-voltage electric shock, unplug the switch or plug immediately and cut off the power supply.

If the power switch is far away from the electric shock site, you can cut the wire with insulating tools, but you must cut the wire on the power side and prevent the cut wire from touching others by mistake.

When the charged low-voltage conductor falls on the electrocuted person, the conductor can be removed with insulation to isolate the electrocuted person from the power supply. However, it is not allowed to use any metal bars or wet objects to move the wires to prevent emergency personnel from getting an electric shock.

If the clothes of the electrocuted person are dry, the emergency personnel can tightly wrap his hands with dry clothes and dry scarves, and then use the wrapped hands to pull the electrocuted person to dry his clothes, or tie them with the dry clothes of the emergency personnel to drag the electrocuted person away from the power supply.

If the electric shock victim is far away from the ground, the electric shock victim should be prevented from falling from a height and causing trauma after cutting off the power supply.

(2) The person who gets an electric shock at high voltage is out of power supply.

In case of high voltage electric shock, cut off the power switch quickly. If you can't cut off the power switch, you should use insulation tools suitable for this voltage level to keep the electric shock away from the power supply. Emergency personnel should keep a safe distance from the voltage level during rescue to ensure the safety of emergency personnel.

(3) The high-voltage overhead line is shocked by the power supply.

If someone gets an electric shock on the high-voltage overhead line, he should quickly pull down the high-voltage switch or call the local power supply department to inform him of the power outage. If the power supply cannot be cut off immediately, the power supply side switch can be tripped by short circuit. When throwing short routes, you should prevent arc burns or disconnection from endangering personal safety. After the person who gets an electric shock on the pole disconnects the power supply, use a rope to send the person who gets an electric shock to the ground.

2) On-site first aid treatment

When the electric shock person cuts off the power supply, the emergency personnel should carry out on-site first aid treatment according to the different physiological reactions of the electric shock person.

(1) The electric shock victim is conscious, but feels weak, flustered, breathless and pale. At this point, the person who gets an electric shock should lie flat and rest quietly. Don't let the electrocuted person walk around to reduce the burden on the heart, and closely observe the changes of breathing and pulse. If you find that the pulse of the electric shock person is too fast or too slow, please ask the medical staff to check and treat it immediately.

(2) When the electrocuted person is delirious and has a heartbeat, but his breathing stops or is very weak, he should open the airway with chin-lifting method in time to carry out mouth-to-mouth artificial respiration. If artificial respiration is not carried out in time, the heart will stop beating because of lack of oxygen for too long.

(3) When the electric shock victim is delirious, his heart stops beating, but his breathing is weak, he should be given CPR first aid immediately. We can't think that there is only chest compression when there is still weak breathing, because this weak breathing can't play the role of gas exchange.

(4) When the electric shock person's heartbeat and breathing stop, first aid should be given to cardiopulmonary resuscitation immediately, and first aid should still be given according to the regulations of cardiopulmonary resuscitation on the way to the hospital.

(5) When the electric shock person's heartbeat and breathing all stop, accompanied by other injuries, first aid of cardiopulmonary resuscitation should be carried out quickly, and then the trauma should be treated. For those who get an electric shock due to cervical fracture, when opening the airway, the head should not lean back to avoid high paraplegia, and the jaw-supporting method should be applied.

(6) When a person is struck by lightning, the heart will be touched by lightning current, and the brain will have a short metabolic rest and central apnea. Therefore, when the lightning victim's heartbeat and breathing stop, he should be given CPR first aid, otherwise he will die due to lack of oxygen. You can't insist on resuscitation just because the pupil of the victim has been dilated.

3) Prevention of rainstorm and debris flow

During the summer flood season, all departments and work areas of the Construction Bureau should strengthen the supervision of the slopes behind the sand and gravel work area camp and Guantianba auxiliary enterprise, stope slopes, water plants, 35KV and right mixing systems, Dongjiagou slag yard and 1 #-4 # living camp slopes, and assign special personnel to conduct encryption inspection and make records. If problems are found in the competent work area, they should report directly to the flood control office, the safety supervision office of the Construction Bureau or the leaders of the Construction Bureau. In case of emergency, personnel and equipment should be evacuated to a safe area immediately to prevent safety accidents caused by mudslides caused by heavy rains.

In rainstorm weather, according to the settlement and cracks of the above slope, assign special personnel to strengthen supervision and inspection in the work area in shifts day and night. If necessary, please ask the technical office, survey team and related technicians to observe and judge, and the safety supervision office will supervise the implementation. In case of major danger, all personnel and equipment must be evacuated immediately and unconditionally. In case of continuous rainstorm, the personnel of steel reinforcement plant and Jinjie processing plant must be evacuated (safety supervision and public security patrol should be strengthened at this time).

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