To mobilize workers, according to the actual situation of construction production, and actively take effective measures to prevent heatstroke, give full play to the effectiveness of the existing cooling equipment, add the necessary cooling facilities, and do a good job in a timely manner to check the maintenance work.
Care for workers' production, life, pay attention to work and rest, adjust the work schedule, strict control of overtime, before the summer, grasp the high temperature, high altitude work workers' physical examination, not suitable for high temperature, high altitude work appropriate transfer of work.
Pay attention to prevent the occurrence of infectious diseases and ensure food hygiene.
Take care to prevent the occurrence of fire.
Summer rebar construction guarantee measures
1, rebar materials from the steel processing plant transported to the construction site, the transportation process should pay attention to safety, rebar in the transportation process should be tied firmly, to prevent the phenomenon of falling rebar in the transportation process, especially when the rebar is too long, should be added in the vehicle safety warning signs, vehicle turns and up and down slopes should be extra careful.
2, steel semi-finished products after acceptance, should be placed in a specific place, shall not be placed on the slope or in the safety channel, steel should be placed in the open area, construction is convenient and does not affect the traffic.
3, summer construction, rebar processing plant and construction site semi-finished products stacking should be done at the waterproof rust measures, rebar is strictly prohibited random stacking, should be unified arrangements for transportation and stacking, for the flood season, to make preparations in advance measures to clean up the debris and water in the rebar stacking area in a timely manner, rebar stacking should be padded at the bottom of the top of the wood, to prevent water from rusting on the rebar, the rain should be covered with geomembrane, and the steel reinforcement should be covered with geomembrane, and the steel reinforcement should be placed in an open area. Reinforcing steel should be covered with geomembrane, and check whether the geomembrane is leaking, if there is leakage, it should be replaced in time; Reinforcing steel is strictly prohibited to be stacked on the excavated soil, which is easy to make the square logs fall into the soil, so that the reinforcing steel and the soil are in direct contact with each other, which will cause corrosion of the reinforcing steel.
4, because the summer construction outdoor temperature is high, rebar after the hot sun, the surface temperature is too high, rebar workers handling rebar is strictly prohibited workers bare hands directly in contact with the rebar, so as not to cause scalding; rebar covered with geomembrane can also play a role in sun protection.
5, reinforcing steel workers in rebar binding, to do a good job of protective measures, especially in the main body of the outer wall rebar binding, due to the construction of the surface is more narrow, the construction should pay more attention to safety.
Summer template construction guarantee measures
1, summer construction template centralized stacking, should be placed in the site of the fire fighting equipment to avoid fire caused by dry temperatures.
2, the material should be arranged when the centralized stacking of personnel specializing in inspections, the site must not appear open flame.
3, construction templates, beams, wall templates must be left to clean the mouth or outlet, template mold releasing agent should be covered with plastic sheeting in case of rain, in order to prevent the isolation layer washed away by the rain.
4, steel pipe frame material such as support on the backfill, should be well padded sleepers, pads, after the rain should be checked in a timely manner templates, bracket firmness, stability, and template cross-section dimensions and so on whether there are changes.
5, rainy day use of wooden templates removed and flattened to avoid deformation and timely cleanup, brush mold release agent in case of heavy rain should be re-brush again.
6, the template assembled as soon as possible after the pouring of concrete, to prevent deformation of the template in the sun and rain. If the template can not be assembled in time to pour concrete, and was rained on, before pouring concrete to re-check, strengthen the template and support.
7, templates and components: hardening of the stacking site, inserted firmly. The template supported on rainy day, before pouring concrete after rain, the template and support should be checked carefully to prevent the template support from loosening.
8, large template landing, the ground should be solid, and firmly supported.
9, the template used in the main structure, the square wood after dismantling the timely lifting to the designated yard, to prevent the template, the square wood by the sun and rain.
Four summer concrete construction guarantee measures
1, proportion adjustment
According to the construction environment, reasonable adjustment of summer construction proportion. Adjustment of the mixing ratio should give full consideration to the loss of slump, in order to reduce the loss of concrete slump, to avoid the concentration of heat of hydration, you can adjust the raw material selection of lower heat of hydration of the cement, but also by adjusting the amount of composite additives to slow down the setting time of the concrete in order to meet the construction requirements.
2, concrete mixing and transportation
Mixing concrete in the hot season should take effective measures to control the concrete mixing temperature. Through the use of low-temperature water mixing, the aggregate using cool water rinsing, as well as taking measures to control the temperature of cement into the machine, so as to reduce the concrete mixing temperature.
3, the pouring of concrete
In the hot weather conditions when pouring concrete, should adjust the time, proper arrangement of the construction surface, the use of ambient air temperature is lower at night or in the morning for the construction of concrete, to avoid high temperature at noon or in the afternoon; equipped with sufficient manpower, equipment and machinery to cope with the concrete less than unfavorable conditions, and at any time control the surface of the concrete and the temperature difference between the outside and the inside of the concrete and the temperature difference between the outside and the inside of the concrete, so as to reduce the temperature of concrete mixing. The temperature difference between the outside world and the temperature difference between the inside of the concrete and the surface at any time.
4, the maintenance of concrete
Summer poured concrete, such as improper maintenance, will cause the reduction of concrete strength or surface plastic shrinkage cracks, etc., therefore, must strengthen the maintenance of concrete.
5, concrete quality requirements
①Concrete maintenance should be timely. In the process of concrete pouring, in order to reduce the concrete surface exposure time, to prevent evaporation of water on the surface of the concrete, available plastic film and other non-absorbent materials, while pouring, while covering, to be the first set of slurry, and then formally into the maintenance process.
② such as artificial sprinkling, spraying maintenance, the concrete surface can be used geotextile, sacks, cotton felt and other absorbent materials to cover (wrapped) tightly, without revealing the edges of the corners, sprinkler spraying intervals are short. Covering inside and outside from beginning to end to maintain moisture, prevent wet and dry cycle. Generally speaking, the temperature of the curing water should not be lower than 15 ℃, and the difference between the temperature of the curing water and the surface temperature of the concrete should not be higher than 15 ℃, in order to prevent cracks on the surface of the concrete.
③ If the surface of the concrete wrapped in plastic film moisture conservation, plastic film should have a certain crack resistance, tensile strength, and flexibility. After demolding the concrete, the concrete surface should be wet with water, immediately wrapped tightly, the plastic film should be tightly adhered to the surface of the concrete, no leakage, no air permeability. During the curing period, water droplets should appear on the surface of concrete from the beginning. In order to keep the surface of the concrete in a moist state, can be regularly sprayed to the plastic film sprinkler, to frequently check the integrity of the film. If found to have plastic film open rupture and other phenomena, to repair the integrity in a timely manner.
④According to different weather and temperature conditions and different structural characteristics, high-performance concrete curing period should be generally controlled within 14-28 days. In this curing period, the use of insulated curing measures to ensure that the concrete curing humidity to meet the requirements, so that the hydration of the concrete is carried out smoothly.
⑤ High-performance concrete curing should be in charge of a person, the establishment of a special responsibility system. During the period of curing, it is necessary to inspect and check in time, find problems, solve them in time, pay attention to details, make records, and fully implement the curing measures.
Prevention of heatstroke
(a) Strengthen the education of heatstroke prevention
The heatstroke prevention team should regularly carry out heatstroke safety education and publicity work for each operation team, so that each person masters the general knowledge of heatstroke safety and improves the resilience of the operating personnel in the operation and the handling ability. Each person masters the precautions in the process of summer construction, so that they know how to protect themselves; rescue others. In front of the site office to post the general knowledge of summer heat, and in the site of the blackboard announced the daily temperature, so that construction workers know the day's temperature in a timely manner.
(2) prevent heat stroke precautions
1, to conscientiously implement the provisions of the construction site management, and actively take measures to strengthen the ventilation and cooling of the construction site, to ensure that the site of the adequate supply of tea, the occurrence of heatstroke, to organize timely treatment.
2, to do a good job of construction site hygiene and epidemic prevention, strengthen the drinking water, food hygiene management, strict implementation of the food hygiene system, to avoid food deterioration caused by poisoning;
3, to strengthen the monitoring of the summer disease prone to on-site workers in the occurrence of statutory infectious diseases, food poisoning, should be reported to the Ministry of the project in a timely manner to do a good job in a timely manner to deal with the appropriate.
The Ministry of the project and the offices of the work districts under it place summer medicines and rescue appliances to provide the necessary protective equipment and summer medicines for the front-line workers who insist on construction under high temperature conditions, and the medicines and rescue appliances are:
1) Medicines: cold medicines, fever medicines, diarrhea medicines, anti-inflammatory medicines and health medicines such as anemarrhena, patchouli, and other health care medicines.
3 rescue apparatus: hearing aid, towels, medicinal kit, etc..
(C) specific measures to prevent heat stroke construction
1, reasonable arrangement of work and rest time. Pay close attention to the weather forecast of hot weather, meteorology will be the daily maximum temperature greater than 35 degrees Celsius defined as "high temperature day", more than five consecutive days of "high temperature day" called "sustained high temperature". The "hot day" is defined as "hot day" when the daily maximum temperature is greater than 35 degrees Celsius. Strictly implement measures to avoid high temperatures by "grasping the two ends and resting in the middle", appropriately adjusting the labor and rest system for summer high-temperature operations, reducing labor intensity, strictly controlling the time of outdoor work, avoiding work during high-temperature hours, and ensuring the health and safety of workers. Every day, the highest temperature period 11:00 ~ 14:00 outdoor work is prohibited.
2, strengthen the work of rotation rest. In the summer according to the process of construction, adjust the labor organization, take the way of hard shift, shorten the time of a continuous operation, and strengthen the rotation of work. Strengthen the site inspection, increase the knowledge of heat stroke prevention and cooling propaganda, improve the safety awareness of all staff.
3, to ensure that the site drinking water supply is sufficient. The site should be supplied with enough health requirements of drinking water, effective prevention of heat stroke, to avoid the occurrence of heat stroke.
4, in the diet to regulate, pay attention to nutrition, prepare more vegetables, fruits and other vitamin-rich foods, more green bean soup, more lotus seeds, mint, lotus leaves and round-grained rice, rock sugar and other porridge is not only sweet and refreshing, but also excellent heat medicine, can effectively prevent heat stroke.
5, the construction workers are required to carry heatstroke medicines, such as: dan, cool oil, wind oil, patchouli, tea and so on.
6, improve the production and living environment of the construction site. To conscientiously implement the construction site management regulations, strengthen ventilation and cooling, to ensure that the construction personnel dormitories, canteens, toilets, showers and other temporary facilities to meet the needs of heat stroke prevention and cooling. Construction site construction site dormitories and canteens to install electric fans, when conditions permit, in the dormitory to install air conditioning.
7, the power distribution rooms, warehouses, paint booths and other flammable places to carry out regular inspections, found that the problem is immediately dealt with, and at the same time equipped with fire extinguishing equipment.
8, on the easy occurrence of personnel heat stroke accidents of dangerous operations, before the construction, must develop preventive measures, and should be carried out level by level detailed safety and technical education.
9, the dormitory area, living area with electricity is equipped with the appropriate power current-limiting protection device and leakage protection device.
10, the project department appointed special person fixed point is responsible for equipped with summer cooling supplies, in the wellhead, hole, dolly respectively set up a number of summer cooling points.
11, do a good job of shield machinery construction hardware equipment to protect the work measures, regular procurement of cooling ice, placed in the most hot work around the welding area and the operation of the hotter working position, to achieve the purpose of cooling, the operating environment control at 38 degrees Celsius or less, and to strengthen the operation of the mechanical ventilation equipment and a reasonable layout, to ensure that the air is fresh.
12, the prevention of heat stroke work to each work area, each team, each work surface, where not up to the requirements of this, seriously urge its rectification, the refusal to rectify or rectification is not in place of the work area, to be seriously punished, the suspension of resolute suspension of work, the penalty resolutely punished. During the high temperature period, my project department will carry out a special inspection of each work area to prevent heat stroke and cool down the work situation, for not seriously implement the requirements of the work of heat stroke and cool down, in addition to notification of the project department criticized, but also will be severely held responsible for the responsibility of the work area and personal responsibility.
(D) heatstroke personnel rescue methods
1, mild patient rescue
site operators appear dizziness, weakness, dazzling phenomenon, the operator should immediately stop the operation to prevent secondary accidents, other peripheral operators should be arranged to the symptoms of the personnel to the cool, well-ventilated area to rest, the supply of cool water, wet towels and so on. Only aura performance or light can be given a cool salt drink, oral administration of Rendan, DDT, etc., and notify the heat stroke prevention team to arrange for medical rescue personnel to observe, diagnosis and treatment.
2, serious patients rescue
When the operation site appears heatstroke (accompanied by fainting, shock, severe dehydration, etc.), the operation of the surrounding personnel should immediately notify the project department of the leading group of heatstroke prevention and cooling, and promptly transfer the accident personnel to a cool ventilated area (or air-conditioned room), observe the symptoms, so that the medical staff to come to grasp the first-hand information on medical treatment. The leading group of heat stroke prevention and cooling shall immediately organize ambulance personnel to come to the scene to treat the accident personnel according to the specific situation. Serious symptoms, in the project department medical equipment can not save the case, should be the first time to the nearest hospital for observation, treatment and report to the company.
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