Facing this question, our answer is
Green construction of green building
Green building and green construction are important strategies to realize energy conservation and environmental protection in the construction field. In the construction, corresponding construction control measures should be taken, and new green construction technologies should be developed to realize efficient, low-consumption and environmentally-friendly construction and maximize the green benefits of the project.
2065438+On March 1 2007, the Ministry of Housing and Urban-Rural Development issued the 13th Five-Year Plan for Building Energy Conservation and Green Building Development, with the following specific objectives.
By 2020, the energy-saving level of new buildings in cities and towns will be 20% higher than that in 20 15 years, and the building energy-saving standards of some areas and key parts such as building doors and windows will reach or approach the international advanced level at this stage. The proportion of green building area of new urban buildings exceeds 50%, and the proportion of green building materials application exceeds 40%. More than 500 million square meters of existing residential buildings and 654.38 billion square meters of public buildings have been completed. The proportion of energy-saving buildings in existing residential buildings in cities and towns in China has exceeded 60%. The proportion of urban renewable energy replacing the conventional energy consumption of civil buildings exceeds 6%. Breakthrough progress has been made in energy conservation of rural buildings in economically developed areas and key development areas, and the proportion of energy conservation measures has exceeded 10%.
Recently, the Shandong Provincial Government has promulgated the Measures for Promoting Green Buildings in Shandong Province (hereinafter referred to as the Measures), which clearly stipulates how the government and departments can promote the development of green buildings from the aspects of planning and construction, operation management, technology promotion, guidance and incentives, and legal responsibilities.
The effective implementation of these policies can not be separated from the support of green building technology.
For enterprises, we should attach importance to the planning and promotion of green construction, research and develop new technologies for green construction, and initially form a complete set of green construction technologies and a relatively complete system of green construction technologies and special technologies. Its development trend is as follows:
(1) Expand the application of prefabricated materials and components in the construction site;
(2) promoting the standardization of temporary facilities;
(3) Innovation and popularization of new construction technology;
(4) The combination of information construction and green construction technical measures is improved;
(5) Establish and gradually improve the green construction standard system.
How should green construction be done?
1, should establish and improve the green construction management system and system;
2, should have a complete green building planning documents;
3, the scene should be set up obvious eye-catching green construction publicity signs;
4. A green construction training system combining professional training with on-the-job training should be established, and implementation records should be kept;
5, should carry out green construction batch and stage evaluation, and complete records, evaluation frequency meets the requirements;
6, in the process of implementation, should pay attention to collect and save the typical green construction pictures or video data, coverage meet the requirements;
7. Complete continuous improvement data of batch and stage evaluation shall be kept;
8. Promote the application of ten new technologies in the construction industry, focusing on the application of four new technologies;
9. When signing subcontracting or labor service contracts, the requirements of green construction indicators shall be included.
How should construction enterprises carry out green construction management?
1, organization and management
Establish a green construction management system and formulate corresponding management systems and objectives. At the same time, the objectives and responsibilities of green construction are decomposed into various departments, and a post responsibility system is established to supervise and manage the stages of construction planning, construction preparation, material procurement, on-site construction and project acceptance, so as to truly realize green construction.
2. Planning and management
Do a good job in green construction planning and management, that is, organize the preparation of green construction plan, environmental factor evaluation and environmental management schedule, energy saving and emission reduction schedule, etc. During construction, major environmental hazards are identified regularly, and problems are found and corresponding measures are taken to solve them in time.
3. Implementation management
Through the control of construction personnel, materials, equipment and construction quality, the combination of engineering construction and green environmental protection can be promoted, so as to better manage green construction. At the same time, combined with the characteristics of the project, the green construction effect and the new technologies, new equipment, new materials and new processes adopted are self-evaluated, and an expert evaluation team is set up to comprehensively evaluate the green construction scheme, implementation process and project completion.
What are the new green building technologies?
1, digital supervision system for green buildings
The system has the functions of data collection, transmission, summary, analysis and query. Through the combination of automation and labor, wired transmission and wireless transmission, the water consumption, electricity consumption, construction noise emission, construction dust and construction site video can be monitored in real time. The platform is stable and reliable, with strong data storage capacity, and can be detected in all directions and around the clock.
The system can effectively reduce the emission level of noise and dust in the construction site and improve the environmental quality in the construction site and its vicinity. If the system is jointly controlled with fog gun, spray and other equipment, when the monitoring data on the construction site exceeds the preset alarm value, these equipment can be automatically started, which plays a linkage role in environmental monitoring and dust prevention.
2, automatic numerical control steel processing technology
This technology is mainly controlled by microcomputer and equipped with a perfect hydraulic system, which can automatically complete the processes of steel bar straightening, sizing, hoop bending and cutting. Moreover, this technology has high construction efficiency, accurate processing and stable operation, and is suitable for large-scale reinforcement projects. Compared with the traditional technology, the equipment has high working efficiency and can replace 20~30 steel workers.
3. Application technology of energy-saving and environmental protection masonry materials
This technology mainly adopts new energy-saving and environment-friendly lightweight aggregate concrete hollow partition board and gypsum block, and the wallboard processing is fully mechanized production line, which can fully reflect the industrialization of masonry engineering. At the same time, the application of this technology can effectively improve the construction speed of the project, save labor cost and material cost, produce little engineering waste residue, and greatly reduce the negative impact of this technology on the environment.
4, plant ecological concrete technology
Ecological concrete grown by plants is popcorn-like, with many separate or continuous gaps, which is suitable for cast-in-place construction of various working faces and inclined planes without mechanical rolling equipment. This technology is mainly used in slope treatment, planting, pavement drainage, noise reduction, water purification, adsorption and removal of harmful gases, which can effectively prevent soil erosion and improve the ecological environment.
5. Construction technology of external wall self-insulation system
The wall self-insulation system refers to the self-insulation system with autoclaved fly ash brick, autoclaved aerated concrete block and ceramsite block as wall materials, and additional joint insulation measures, such as EPS board thin plastering external wall insulation system, assembled external wall insulation and decoration integrated external wall insulation system, rock wool (mineral wool) board external insulation system, TCC building insulation template construction system, etc. In addition, buildings using this technology can meet the design standards of energy saving of 50% in hot summer and cold winter areas and hot summer and warm winter areas.
Matters needing attention in green construction
1, improve the utilization rate of materials.
(1) Before construction, the plan and management system for materials entering the site, keeping and leaving the warehouse, as well as the management measures for recycling recycled wastes should be formulated, so as to reduce the loss rate in the process of material transportation and the waste rate in the process of material use and ensure the reasonable and full utilization of materials.
(2) Set up a special material management team. Conventional materials should be sourced locally as far as possible, suppliers should be selected reasonably according to the planned material consumption time, and they should enter the site according to the material consumption time; For leased reusable materials, the number of days of use should be accurately calculated according to the construction period, and attention should be paid to maintenance during use.
(3) Establish centralized management of material consumption account, and pick materials according to consumption quota to avoid unreasonable phenomena such as superior materials and inferior use, superior materials and short use, and overqualified materials and short use. At the same time, waste materials should be reused.
2. Strengthen environmental protection
(1) Before construction, a reasonable environmental management plan and emergency rescue plan should be formulated, and effective measures should be taken to reduce the environmental load, protect other facilities and cultural relics and other resources, and ensure the safe operation of various pipelines, pipelines and buildings around the construction site.
(2) Fences should be set up on the construction site, and measures such as covering, subsection operation, regular construction, sprinkling water to suppress dust, washing the ground and vehicles should be taken to control the dust on the construction site. At the same time, the visual dust height in the operation area during earthwork construction should be less than1.5m; ; Structure construction and decoration should be less than 0.5m, and it is not allowed to spread outside the site.
(3) Noise control should be carried out on the construction site to ensure that the construction is not a nuisance. During the day, if the structure is in the construction stage, the noise should not be greater than 70dB；; If it is the decoration stage, the noise should not be greater than 60dB；; The noise at night should not exceed 55dB.
3. Reasonable site layout
(1) Land protection should be paid attention to in the construction site, and temporary land use indicators, general construction plan and temporary land-saving measures should be formulated.
(2) The construction site should be equipped with separation facilities to separate the living area from the construction area. The layout of warehouses, processing areas and material storage yards should be as close as possible to the existing traffic lines, so as to shorten the transportation distance. The temporary office and living rooms should adopt multi-storey light steel prefabricated houses and steel reinforced cement prefabricated houses, which cover a small area and are convenient for dynamic adjustment.
(3) Optimize the construction scheme of deep foundation pit, reduce the amount of earthwork excavation and backfilling, and store the surplus earthwork on the spot as much as possible to protect the surrounding natural ecological environment.
4. Reduce energy waste
(1) Before construction, reasonable construction energy consumption indicators should be formulated, such as electricity consumption control indicators of production, living, office and construction equipment, and measured regularly, so as to effectively improve the utilization rate of construction energy.
(2) During construction, reasonably arrange the construction sequence and working face, make full use of construction equipment and tools, improve their utilization rate and full load rate, reduce the number of construction equipment and tools in the construction area, and adopt construction equipment and tools with low energy consumption, high efficiency and good environmental protection.
(3) Give priority to energy-saving wires and energy-saving lamps for temporary electricity use, rationally design and arrange temporary electricity lines, and adopt automatic control for temporary electricity equipment.
5. Recycling water resources
(1) A reusable water collection and treatment system should be established in the construction site, advanced water-saving construction technology should be adopted, and the water for on-site maintenance should be reasonably selected. Municipal tap water should not be used to spray the road surface and green irrigation on the construction site. At the same time, provide washing water for on-site machines, equipment and vehicles. Circulating water device shall be provided.
(2) According to the water consumption, on the premise of ensuring reasonable pipe diameter and simple pipeline, rationally design and arrange the water supply pipe network, and pay attention to maintenance during use, so as to reduce the damage of the pipe network and water appliances and the waste of water resources.
(3) In the process of construction, a metering water meter should be installed on the water-using equipment to determine the quota index of engineering water and domestic water. At the same time, obvious water-saving signs should be set on water-using equipment.
At present, green construction mostly exists in the engineering construction stage. In the future, it should be effectively combined with bim technology and cloud computing technology to form a linkage green construction general contracting management. At the same time, we should continue to research and develop new green construction technologies to better save resources, reduce energy consumption and promote the sustainable development of green construction in the construction industry.
I believe that after the above introduction, everyone has a certain understanding of the "boundary line" of green construction and the consideration of construction level and details. Welcome to Zhong Da for more information.
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