The front office shall be responsible for the on-site concrete construction, and the back office shall be responsible for the scheduling of vehicles in the mixing station.
Winter construction calculation 7.1 Soil insulation and antifreeze calculation 7.2 Concrete mixing, transportation Calculation of pouring temperature 7.3 Calculation of temperature during concrete thermal storage curing 1.
3.2 Organization To ensure the smooth implementation of winter construction, the Project Department shall establish a winter construction management leading group headed by the Project Manager, and each construction participant shall establish a winter construction leading group under the unified leadership of the Project Department.
The production shall be arranged in strict accordance with the winter construction process and requirements to ensure the project quality and progress.
During the base slab concrete pouring, the front and back office contact system shall be established.
Management of winter construction 6.1 Technical management of winter construction 6.2 Safety elimination of winter construction Prevention management 7.
On site, atmospheric temperature measurement boxes shall be set up to make records of atmospheric temperature measurement.
Basis for compilation 2.
Learn the company’s regulations, main construction methods and relevant technical measures for winter construction.
Through the timely contact between the front and back offices, reasonable allocation shall be achieved to ensure the continuous pouring of the base slab concrete.
In case of other materials required during the site construction, the materials department shall propose plans and purchase them separately..
The winter construction leading group of the project is composed as follows: the team leader of the winter construction leading group, the project manager, the deputy team leader of the winter construction leading group, the technical chief, the overall coordination, the implementation, the overall responsibility for the work in the region, the overall responsibility for the work in the region, the overall responsibility for the work in the region, the overall responsibility for the work in the region, the main members for the regional coordination, the implementation of the winter construction plan and other measures for the regional coordination, Implement the winter construction plan and other measures to be responsible for the regional coordination, implement the winter construction plan and other measures to be responsible for the regional coordination, implement the winter construction plan and other measures to be responsible for the on-site technical guidance, solve the technical problems on site, be responsible for the safety management leadership of winter construction to assist the chief engineer, carry out the winter construction technical management, be responsible for the procurement of winter construction materials, be responsible for the on-site water Temporary electricity and other electromechanical management are responsible for steel structure construction management in winter, responsible for mechanical and electrical installation management of main works in winter, 4.
Construction deployment 3.1 Winter construction content 3.2 Organization 4 Construction preparation 4.1 Technical preparation 4.2 Personnel preparation 4.3 Material preparation 4.4 Site preparation 5.
Construction deployment 3.1 According to the overall construction schedule and the temperature records over the years, the main winter construction contents of this project are: soil cleaning between piles, construction of bottom plate reinforcement works, construction of bottom plate concrete works, binding of first layer column reinforcement, installation of steel column foot and concrete pouring.
Mix proportion of concrete in winter construction.
Organize management personnel to review all construction drawings once to check whether they meet the requirements of winter construction.
Technical measures for winter construction 5.1 Earthwork cleaning 5.2 Reinforcement works 5.3 Concrete works 5.4 Winter welding construction 6.
Project overview 2.1 Project overview xxxxxxxxxxxxxxxxxxxxxxxx 2.2 Current construction progress xxxxxxxxxxxxxxxx 2.3 Weather overview Winter construction is stabilized below 5 ℃ on the average daily temperature for 5 consecutive days, and the first day of this 5d is the first day of winter construction; When the temperature turns warm, the daily average temperature of the last 5d is stable above 5 ℃, and the last day of this 5d is the final day of winter construction.
Technical preparation.
Weather changes shall be known in time to determine the exact dates of the beginning and end of winter construction.
Among them, the bottom slab concrete construction is the focus of this winter construction.
Preparation basis 1.1 Project design drawings 1.2 Project construction organization design 1.3 Code for Acceptance of Construction Quality of Concrete Structures (GB502041.4) Code for Acceptance of Construction Quality of Concrete Structures (DBJ01-821.5) Code for Winter Construction of Building Engineering (JGJ1041.6) Technical Code for Application of Concrete Admixtures (GB501191.7) Winter Construction Manual (1.8) Building Construction Manual 2.
Ready mixed commercial concrete shall be used for all base slab concrete.
The sub divisional works to be carried out during winter construction shall be determined according to the overall construction period plan, the winter construction scheme shall be prepared, and technical disclosure shall be carried out.
Purchase the specifications, procedures and other books related to winter construction, and learn the provisions related to winter construction, so that the relevant personnel can timely master the relevant requirements of winter construction.
Organize labor operation teams to learn about winter construction methods and specifications; Carry out winter construction safety and fire prevention education for all labor teams.
The demand of various winter construction materials is shown in the following table.
The winter temperature of this year is particularly low compared with previous years, which not only brings winter construction ahead of schedule, but also keeps low temperature, bringing great difficulties to several sub divisional works to be started in this project.
Construction preparation, 4.1.
Project overview 2.1 Project overview 2.2 Current construction progress 2.3 Weather overview 3.
Materials stacked outdoors shall be stacked neatly, and reliable snow prevention measures (covered with colored strip cloth) shall be taken.
The exact date of winter construction shall be subject to the actual temperature measurement record on site.
3.
Winter construction in XX area generally lasts from November 15 to March 15 of the next year, lasting for 4 months.
Table 1.
On site, the tester shall make records of atmospheric temperature measurement.
4.3 Before winter construction, the Material Preparation Department shall prepare all materials required, and conduct acceptance, storage and distribution of all materials after mobilization.
4.2 The personnel are prepared to organize relevant project management personnel to learn the technical specifications, procedures and construction process standards related to winter construction.
