What are the energy-saving and environmental protection measures for construction projects?

Energy conservation and environmental protection measures for construction projects are as follows:

(a), residential building and structure technology 1, load-bearing structure: the residence adopts special-shaped column frame load-bearing structure system, reducing indoor convex angles and increasing the use area, which can realize large bay; The property management complex building adopts the load-bearing structure system of prestressed beam slab with large bay and post-tensioned unbonded flat beam, which can meet the requirements of large bay, increase the clear height and reduce the structural weight. The height of beam section is obviously smaller than that of ordinary frame structure, and the appearance effect is better. 2. Enclosure structure: the external wall is ceramsite concrete hollow block with 390x 190x 190 double-row blind holes; The original technical feasibility study scheme used brick slag concrete hollow block, but considering that brick slag concrete hollow block is only a transitional product and the strength of brick slag is discrete, it is not the direction of wall reform. At the suggestion of experts from the Ministry of Construction, small concrete hollow block with three rows of holes was adopted as the experimental project. 3. Partition structure: ceramsite concrete block system (140mm thick) is adopted, which is light and sound-proof, thus increasing the indoor use area. (II) Energy-saving and new energy development and utilization technologies L. The envelope structure adopts heat insulation coating external wall cooling technology and ceramsite concrete block insulation technology. Thermal insulation coating has excellent solar thermal reflection characteristics, which greatly reduces the external surface temperature of the wall and the energy consumption of air conditioning operation in summer. The thermal conductivity of ceramsite concrete block is small, and the thermal resistance and thermal inertia index of masonry are obviously better than those of brick slag concrete block and clay wall with the same thickness, which makes the room warm in winter and cool in summer, and can greatly reduce the air conditioning load and operating energy consumption. 2. The roof insulation technology adopts polyurethane foam insulation technology and rigid polystyrene extruded foam insulation board; (The original feasibility study used waterproof perlite board insulation layer) 3. The energy-saving technology of doors and windows adopts plastic steel doors and windows and double-layer insulating glass, which has high wind pressure bow, good air tightness and water tightness, good heat preservation, heat insulation, energy saving and sound insulation performance; The entrance door adopts heat insulation, heat preservation, sound insulation and fire prevention security door, which has good sound insulation, anti-theft performance and heat insulation and sealing effect. 4. Energy-saving technology of electrical equipment: Energy-saving lamps and intelligent lighting energy-saving technology are used in public places such as stairs and walkways in buildings, which can effectively reduce the cost of shared property for residents. Adopt carved F crystal box transformer and distribution cabinet to save land, investment and noise. VVVF elevator without green data center is adopted, which has stable operation, low energy consumption and low noise; Increase the usable area, reduce the investment in land construction and the public beach area of users. 5. Energy-saving technology: through the unified decoration of kitchen and bathroom, equipped with water-saving faucet, using 3/6 liter two-stage water-saving toilet, and using ceramic core sealing faucet, infrared sensing faucet and urinal in the property management complex building, the water-saving effect is remarkable. 6. The new energy technology adopts an all-weather water supply system integrating solar energy and buildings, and uses natural gas energy, which is cheap and environmentally friendly. (3), complete set of residential kitchen and bathroom technology l, kitchen overall standardization technology According to the principle of unified coordination module, optimize parameters, determine kitchen design, and implement pipeline interface positioning; Reasonable consideration should be given to the configuration of kitchen electrical equipment, the position of power socket and the intelligent remote control interface of household appliances. The overall standardization technology of toilet realizes the positioning of pipeline interface according to the principle of unified coordination module; 2, the overall optimization design of the bathroom, reasonably determine the installation position of the bathroom cleaning appliances, the internal appliances adopt the same specifications and standards, diversified design, waterproof, seepage-proof, leak-proof, reasonable number of cleaning appliances and perfect functions; 3. Complete set of indoor decoration technology: all kitchens, bathrooms and some houses are decorated once, and the developers design, construct and manage them in a unified way, so as to avoid the damage and decoration pollution of the building structure and water and electricity facilities caused by the second decoration after the owner moves in, realize the factory batch production and complete installation of decoration materials, cleaning appliances, stoves and other components, and improve labor productivity. 4. The kitchen centralized smoke exhaust system adopts BPS-III double check vertical smoke exhaust duct, which has the functions of high secondary oil mist separation rate and good check effect, and can automatically prevent smoke and odor under mechanical ventilation and natural ventilation, which is beneficial to environmental protection. (4) Energy-saving and environmental protection technology for residential pipelines 1, multi-circuit wiring technology for electrical appliances: through comprehensive wiring, the position and quantity of interfaces and plugs are reasonably set, and short-circuit protection, overload protection and grounding protection are adopted to ensure the safety of electricity consumption, with no less than 6 circuits per household; 2. The centralized concealed pipeline system technology is adopted, and the pipeline is centralized and concealed. 3. The new pipe adopts PPR water supply pipe and steel-plastic composite water supply pipe (pe pipe), which is sanitary, convenient and non-corrosive; Adopt UPVC drainage pipe to reduce noise and avoid pollution. 4. Concealed installation of outdoor units of air conditioners, and centralized discharge technology of condensed water: The outdoor units of air conditioners are arranged neatly, installed concealed, and have strong decorative appearance; Set up a special drainage pipe to collect air-conditioning condensate and discharge it centrally. (5), residential intelligent extraction 1, safety prevention technology (five-level prevention), such as admission identification, perimeter overtaking prevention alarm system, patrol management system, visual intercom access control, family safety prevention, emergency call, gas leakage, smoke alarm, temperature alarm, family security alarm system management, etc. ; 2. Information management technologies such as one-card in the park, remote meter reading and management system of the second meter in the community, monitoring of public facilities in the park, modern management of vehicle access and parking lot, emergency broadcasting and background music system in the park, and intelligent control of public lighting in the park; 3. Smart home technology, such as remote control of household appliances. It can increase the safety performance of residential areas, improve the comfort of living environment, improve the efficiency of residential property management and effectively reduce operating costs. (VI), living environment and its guarantee technology L, water pressure and water quality guarantee technology: When the municipal water supply pressure is insufficient, adopt variable frequency speed regulation constant pressure pump to keep the water pressure stable; At the same time, new environmental protection pipes are used to supply water to prevent secondary pollution in the process of water supply and transportation; 2. Domestic sewage treatment and reuse technology: domestic sewage is treated efficiently through three-stage treatment to achieve the purpose of reuse. The treated sewage can be used for greening water and road washing, which greatly saves the water fee. It has the characteristics of wide use, water saving and low construction and operation costs. 3. The technology of garbage bagging and garbage classified collection is adopted, which is collected and processed by the residential property management company and sent to the garbage disposal station, with small floor space, flexible site selection and high efficiency. 4. Choose high-quality grass and tree species for greening and environmental protection technology in residential areas, adapt to the characteristics of subtropical climate and manage scientifically; 5. The permeable pavement material has good water permeability, which is beneficial to make full use of rainwater resources, reduce the urban drainage pressure, increase the green area, reduce the thermal radiation intensity of hard pavement and reduce the heat island effect. 6. Use ditches to collect rainwater and store it in different grades for greening and watering. (VII), residential construction technology L, waterproof technology: the roof adopts APP, SBS modified asphalt waterproof coiled material, polymer cement mortar, Lejin /RG cement-based waterproof material, polyurethane waterproof coating and other new waterproof materials. Can greatly extend the waterproof life of the building; Self-waterproofing technology of concrete structure is adopted for concrete external walls of basement and floors of kitchen and bathroom. The top surface adopts inverted waterproof roof construction technology. 2. Construction technology: adopting concrete pumping technology can reduce the labor intensity of production, speed up the construction and shorten the construction period; In the implementation scheme, fair-faced concrete construction technology which was not considered in the original technical feasibility study scheme was added, and it can be applied to floor slab, basement, semi-basement beam column and concrete wall, which can effectively ensure the concrete quality; The application technology of high-efficiency steel bar adopts HRB400 new grade III steel and cold-rolled ribbed steel bar, which has stable quality, superior mechanical properties, high strength and high price.