1 Overview of Green Construction
"Green" is a kind of culture, a culture of coordinated development between man and nature, and a culture of sustainable development of mankind. Green building is an important part of green culture. As far as the general meaning of "green" is concerned, people generally have a simple and literal understanding of "green construction", which can basically meet the general communication on the topic of green construction at present. However, the systematic grasp of the concept and connotation of green construction in academic circles is related to the development direction of green construction, the improvement of understanding of green construction, the formulation of policies, the guidance and evaluation of green construction, etc., which is an important basic research work to promote green construction. Vigorously developing green buildings (including green buildings) is the concrete embodiment of implementing Scientific Outlook on Development, an important strategic work for the sustainable development of the construction industry, and an inevitable requirement for building a conservation-oriented society and developing a circular economy.
Traditional construction takes the pursuit of construction period as the main goal, while resource conservation and environmental protection are in a subordinate position. When the construction period conflicts with resource conservation and environmental protection, it is often at the expense of wasting resources (equipment, materials and manpower) and destroying the environment (serious pollution, landforms and vegetation). Obviously, sticking to the traditional construction mode can no longer meet the requirements of Scientific Outlook on Development. Therefore, the green construction mode, which takes efficient use of resources as the core, gives priority to environmental protection, pursues high efficiency, low consumption and environmental protection, and takes into account the maximization of comprehensive benefits of economy, society and environmental protection (ecology) as a whole, has emerged as the times require, becoming the inevitable trend of construction technology development and the inevitable choice of sustainable development of construction enterprises.
2 problems in green construction of construction enterprises
China is still a developing country with relatively backward economy and culture. At the same time, the management level of construction enterprises is relatively backward, the construction is subcontracted at different levels, and the management is not in place, resulting in management disconnection. Because there are still some problems to realize green construction. Combined with personal construction management experience, I mainly think that there are the following aspects:
2. 1 The examination and approval system of the National Government is not perfect, and there are no corresponding institutional measures.
Some local governments are short-sighted in project examination and approval, and fail to evaluate the project from the perspective of environmental protection and sustainable development. At the same time, many construction units analyze their own psychology, and when applying for project approval, they only proceed from their own vital interests and repeat the application.
Report, and rarely consider the impact on the environment after the completion of the project. In terms of national laws, there are relatively few laws in this area, which rarely play a binding role on construction enterprises. At the same time, in the process of project approval, due to the imperfect system, a few officials are corrupt. Some construction sites can't meet the construction requirements, but they have already started, so it is difficult to implement green construction.
2.2 lack of green awareness
The importance of environmental protection is well known. However, in the process of some projects, we often see the behavior of quick success and instant benefit to destroy the environment. Without good environmental awareness, it is difficult to make a good or bad evaluation of one's behavior and the environment. Moreover, due to the characteristics of building construction, the cultural level of the personnel engaged in front-line construction is relatively low, and the construction personnel do not pay enough attention to environmental protection and energy saving during the construction process. In addition, many contractors mistakenly believe that the adoption of green construction technology and methods will increase the project cost, so they are passive in the implementation process, do not improve the construction methods, and do not pay attention to construction management. As we all know, green construction is a scientific construction organization design process, which can also produce saving effect. For example, by reducing the damage to the construction site, the excavation and transportation of earthwork and the installation of artificial systems, the cost of site cleaning can be reduced; By monitoring water consumption, reuse rainwater or construction wastewater to reduce water charges; Through the reuse of demolition and construction waste, reduce the additional landfill costs and transportation costs; Reduce material costs through more careful procurement and reuse of resources and materials; Reduce employee health problems caused by poor indoor air quality.
2.3 Some private construction enterprises pursue high profits.
The sustainable development of green building road directly affects the prosperity and development of our future generations. Although our slogan has always emphasized harmony, equality and love for nature between man and nature. However, driven by interests, some construction enterprises simply do not consider the impact of construction on the surrounding environment, such as dumping construction waste on the spot. In this way, on the surface, it saves costs to some extent, but it is not conducive to long-term development.
3. Treatment of green construction problems in construction enterprises
3. 1 Further improve relevant policies.
BOCOG Environmental Activities Department is responsible for drafting the Green Construction Guide for Olympic Projects, which consists of four parts: general rules, green construction management, green construction technology and supplementary rules, with a total of 33 articles. Among them, Article 14 of "Green Construction Management" mainly stipulates the responsibilities of the construction unit (owner) and the construction unit, the personnel, system and fund guarantee of on-site environmental management, the qualifications and materials of the unit, the control requirements of the production process, the noise control procedures, the night construction control procedures, and the requirements of the training, publicity and education and supervision mechanism of the relevant units. Article 13 of "Green Construction Technology" includes supplementary requirements such as selection of construction technology, on-site fence, dust prevention measures, prevention and control of water pollution, air pollution, noise control and garbage recycling, and emphasizes the consistency of the provisions of the Guide with other construction management laws and regulations at all levels, the complementarity of scope and the further refinement of some contents. According to the implementation of the green construction guidelines for Olympic projects, the construction authorities should formulate unified green construction standards for the construction industry, strengthen policy guidance, and make the green construction of the construction industry have laws to follow and rules to follow.
3.2 Strengthen the publicity and education of green construction, and earnestly establish the concept of green construction.
If construction enterprises can effectively implement green construction, it will be beneficial to energy saving, consumption reduction, cost reduction and technological innovation, thus improving the management level and competitiveness of enterprises and providing guarantee for the long-term benign development of enterprises. Because the cultural quality of employees in construction enterprises is generally low, and the management level and competitiveness of enterprises are not strong, every employee of enterprises should first establish the concept of green construction, which requires strengthening the publicity and education of green construction, which should run through the whole process from project construction preparation to project completion.
3.3 Strengthen the innovation and improvement of construction technology and construction machinery.
Some existing construction methods that do not meet the requirements of energy saving, material saving and environmental protection must be improved. First, improve the construction technology, such as the top-down method can reduce the impact of construction dust on the atmospheric environment in the foundation construction stage and reduce the interference of noise on the surrounding environment; The application of new materials, such as non-vibrating concrete, can reduce the labor intensity of workers and avoid noise. Second, improving construction machinery, such as developing and using machinery with low energy consumption and low noise, can not only improve construction efficiency, but also directly contribute to green construction.
3.4 Strengthen the innovation and improvement of construction technology and construction machinery.
Some existing construction methods that do not meet the requirements of energy saving, material saving and environmental protection must be improved. First, improve the construction technology, such as the top-down method can reduce the impact of construction dust on the atmospheric environment in the foundation construction stage and reduce the interference of noise on the surrounding environment; The application of new materials, such as non-vibrating concrete, can reduce the labor intensity of workers and avoid noise. Second, improving construction machinery, such as developing and using machinery with low energy consumption and low noise, can not only improve construction efficiency, but also directly contribute to green construction.
4 conclusion
Green construction is the key link of sustainable development of construction industry. At present, there are still many shortcomings in the implementation of green construction in China, and most construction enterprises still fail to apply the "green road" to construction as a whole, let alone cultivate and improve the green construction ability as the competitiveness of enterprises. The systematic implementation of green construction has an important impact on the competitiveness of construction enterprises. It is an effective way to improve the competitiveness of construction enterprises, which helps to reduce the environmental and legal risks of enterprises, improve the management level of enterprises, promote technological innovation, reduce production costs and improve the social image and competitiveness of enterprises. With the further implementation of the sustainable development strategy, the implementation of green construction will surely become an inevitable choice for construction enterprises.
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