Construction engineering plays a vital role in urban development,especially as the pace of modern progress continues to accelerate.The widespread use of energy-saving and green environmental protection building materi...Construction engineering plays a vital role in urban development,especially as the pace of modern progress continues to accelerate.The widespread use of energy-saving and green environmental protection building materials in this field not only brings convenience to daily life but also promotes the scientific,sustainable,and stable development of construction projects.These materials significantly extend the service life of buildings while supporting environmental protection efforts.This paper explores the practical application value of energy-saving and environmentally friendly building materials in construction engineering,outlines the key application principles,and analyzes their specific types and usage requirements.The aim is to provide a valuable reference for future research and practical implementation.展开更多
In order to improve the construction quality and steadily promote the improvement in the level of the construction industry,this paper expounds BIM-based strategies for construction quality control.This paper first id...In order to improve the construction quality and steadily promote the improvement in the level of the construction industry,this paper expounds BIM-based strategies for construction quality control.This paper first identifies the factors affecting the construction quality,analyzes the advantages and value of the application of BIM in construction,and finally analyzes the scenario of applying BIM for future references.展开更多
"Environmental protection concept" is the latest project construction concept put forward by Chinas construction industry in the market development. Reasonable, standardized and scientific use of green techn..."Environmental protection concept" is the latest project construction concept put forward by Chinas construction industry in the market development. Reasonable, standardized and scientific use of green technology in prefabricated building construction can not only bring into play the higher economic benefits of the building in the market, but also create a better social image for builders and construction units in the market. In order to implement this work, solve the extensive production problems existing in the early development of the construction industry in the market and reduce the problems of high energy consumption and heavy pollution caused by unreasonable construction technology.展开更多
With the development of information technology, electronic information technology has been widely used in different fields and industries, which also changes people's lives, improves people's quality of life, ...With the development of information technology, electronic information technology has been widely used in different fields and industries, which also changes people's lives, improves people's quality of life, and has a great impact on people's work efficiency and quality. With the continuous development of information industry, it also provides a strong guarantee for social development and economic construction. It can be said that electronic information technology has become one of the science and technology with good application prospects, and has brought greater changes to people's work and life. It is also an indispensable technology in the development of social civilization. The application of electronic information technology in intelligent building engineering can create a good environment for construction and management, and ensure the smooth progress of the project.展开更多
Urbanization has led to the rapid development of the construction industry.However,this has also led to higher requirements for the construction engineering management.Other than the quality monitoring of engineering ...Urbanization has led to the rapid development of the construction industry.However,this has also led to higher requirements for the construction engineering management.Other than the quality monitoring of engineering construction,the energy-saving properties of the building should also be considered.Therefore,a scientific management approach should be adopted to improve green building management.This paper primarily examines the importance of quality management in green building construction,along with the factors influencing it.It also identifies the quality issues present in current green building construction.Finally,it proposes measures for quality management in the green building construction process to facilitate the industry’s healthy development.展开更多
Building decoration engineering mainly carries out various decoration works for buildings,which can provide protection for building components,avoid the influence of nature as far as possible,and help to improve the f...Building decoration engineering mainly carries out various decoration works for buildings,which can provide protection for building components,avoid the influence of nature as far as possible,and help to improve the function of buildings and prolong their life.At the same time,the building decoration project is an important part of the whole construction project,and the probability of bad situation is relatively large,so it is necessary to carry out in-depth exploration for the corresponding management work,clarify the existing problems,and put forward corresponding measures according to the actual situation.展开更多
Architectural structure engineering occupies a major position in architectural engineering and has a direct impact on the design quality of the whole building. As far as architectural structure design is concerned, sa...Architectural structure engineering occupies a major position in architectural engineering and has a direct impact on the design quality of the whole building. As far as architectural structure design is concerned, safety and durability have received more and more attention, which are also the two major focuses of current architectural structure engineering design. However, there are still some problems in carrying out these two tasks, which greatly affect the final construction quality. This paper studies the durability and safety of building structure engineering, hoping to effectively improve the overall design quality of building structure and meet the living needs.展开更多
In recent years, with the continuous construction and development of China's construction projects, especially the increasing number of high-rise buildings, there is a higher requirement for risk management. In th...In recent years, with the continuous construction and development of China's construction projects, especially the increasing number of high-rise buildings, there is a higher requirement for risk management. In the current construction work of building power projects, relevant managers should pay attention to the analysis of actual construction problems based on the actual situation, constantly change the situation of construction personnel, equipment used and the surrounding environment, identify, analyze and evaluate the safety risks in the actual construction of power cable projects in building power projects, formulate a construction strategy that meets the actual situation, solve various problems in the actual construction of power cable projects in building power projects, drive the good improvement of China's economic construction, and promote social progress in China.展开更多
In the urban construction, the development of civil engineering affects people's living standard and life quality of the current civil engineering energy shortages, limits the progress of construction technology i...In the urban construction, the development of civil engineering affects people's living standard and life quality of the current civil engineering energy shortages, limits the progress of construction technology in this regard, the relevant ministries and commissions must be reform based on the concept of green building in the preliminary construction scheme, using energy-saving building technology, in order to improve the construction quality;On the basis of the principle of sustainable development, improve the efficiency of resource use, energy efficiency and emission reduction and cost control through innovative technology and building methods. Specific design techniques include wall construction, insulation material selection, heating technology, etc. Adopt various means to ensure the application of energy-saving technology in building construction.展开更多
In the construction process of a building project, one of the most critical parts is electrical engineering, which plays a vital role in the whole building. The development speed of Chinese construction industry is ge...In the construction process of a building project, one of the most critical parts is electrical engineering, which plays a vital role in the whole building. The development speed of Chinese construction industry is getting faster and faster. In fact, the use of functions are also constantly improving, and the use of many functions must rely on electrical engineering to achieve. The further development of science and technology promotes the continuous improvement of electrical engineering technology. Compared with before, great changes have taken place, especially the application of intelligent technology, which provides more power for the development of electrical engineering, which also plays a very important role in Chinese construction industry. This paper discusses and analyzes the application of intelligent technology in electrical engineering.展开更多
The application of HVAC system is of great significance to the adjustment of indoor temperature, so as to meet peoples daily life needs and the quality of construction, but also determines whether people can obtain a ...The application of HVAC system is of great significance to the adjustment of indoor temperature, so as to meet peoples daily life needs and the quality of construction, but also determines whether people can obtain a better quality of life. This paper mainly introduces the specific principles of HVAC installation as well as the current main existing problems, and further puts forward the means of improving the construction quality control of building HVAC engineering, hoping to put forward more reference significance for the construction of HVAC engineering, to ensure the safe and stable operation of HVAC engineering.展开更多
Foreword ISO(the International Organization for Standardization)is a worldwide federation of national standards bodies(ISO member bodies).The work of preparing International Standards is normally carried out through I...Foreword ISO(the International Organization for Standardization)is a worldwide federation of national standards bodies(ISO member bodies).The work of preparing International Standards is normally carried out through ISO technical committees.Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.展开更多
At this stage, the importance of green construction technology in building decoration is self-evident. From the perspective of construction enterprises, it can save costs, improve project quality and protect the healt...At this stage, the importance of green construction technology in building decoration is self-evident. From the perspective of construction enterprises, it can save costs, improve project quality and protect the health and safety of site staff. In the specific implementation process, a large range of new energy-saving and environment-friendly technologies, such as aluminum alloy windows and broken bridges, are used on the construction site, noise pollution is strictly controlled, solid waste is disposed in a recycling way, and environmental-friendly materials are vigorously adopted to inject new vitality for sustainable and healthy development into the entire construction industry.展开更多
With the development of economy, the demand for life is getting higher and higher, and the demand for daily water supply in cities is getting higher and higher. Resources are the key factor of social development, and ...With the development of economy, the demand for life is getting higher and higher, and the demand for daily water supply in cities is getting higher and higher. Resources are the key factor of social development, and even hinder social progress in some cases. Therefore, the shortage of resources has become a problem to be solved in social development. While the awareness level is improved, the water saving value is gradually reduced, which greatly facilitates the development of drainage. Multi-measures to save water, make better use of water resources, change the outdated application mode, reduce the production cost of enterprises and promote scientific and technological progress are beneficial to the sustainable development of relevant organizations.展开更多
Energy-saving design methods of building water supply and drainage system are constantly changing with the development of materials, equipment and technology. In building design, all kinds of new equipment and new tec...Energy-saving design methods of building water supply and drainage system are constantly changing with the development of materials, equipment and technology. In building design, all kinds of new equipment and new technology should be used to reduce the energy consumption level of building water supply and drainage system. The technical emphasis of energy conservation is different. The technology of non-negative pressure and constant pressure water supply focuses on making full use of the residual pressure of municipal water supply. The clean energy hot water supply system can replace the traditional municipal heat pipe network, with excellent energy-saving and environmental protection effects. Reclaimed water reuse and rainwater recycling can realize the nearby utilization of sewage and rainwater, and the energy consumption in the transportation process is low. This paper explores the application of energy-saving and water-saving technology.展开更多
With the development of economy, the pace of urbanization is accelerated, the quality of people's life is improved, and the environmental requirements are improved. The most obvious reflection of this phenomenon i...With the development of economy, the pace of urbanization is accelerated, the quality of people's life is improved, and the environmental requirements are improved. The most obvious reflection of this phenomenon is that in architecture, the quality of construction projects has an important impact on the security and stability of society because of its pivotal role in people's lives. In order to improve the waterproof performance of construction workers, related technologies have been widely used in the construction process. As one of the main technologies of building construction, it can not only promote the building quality, but also effectively promote the development of the building industry. Therefore, the application of waterproof and anti-seepage technology in construction engineering can effectively promote the construction quality of construction engineering and provide efficient guarantee for its safety.展开更多
Accurate basic data are necessary to support performance-based design for achieving carbon peak and carbon neutral targets in the building sector.Meteorological parameters are the prerequisites of building thermal eng...Accurate basic data are necessary to support performance-based design for achieving carbon peak and carbon neutral targets in the building sector.Meteorological parameters are the prerequisites of building thermal engineering design,heating ventilation and air conditioning design,and energy consumption simulations.Focusing on the key issues such as low spatial coverage and the lack of daily or higher time resolution data,daily and hourly models of the surface meteorological data and solar radiation were established and evaluated.Surface meteorological data and solar radiation data were generated for 1019 cities and towns in China from 1988 to 2017.The data were carefully compared,and the accuracy was proved to be high.All the meteorological parameters can be assessed in the building sector via a sharing platform.Then,country-level meteorological parameters were developed for energy-efficient building assessment in China,based on actual meteorological data in the present study.This set of meteorological parameters may facilitate engineering applications as well as allowing the updating and expansion of relevant building energy efficiency standards.The study was supported by the National Science and Technology Major Project of China during the 13th Five-Year Plan Period,named Fundamental parameters on building energy efficiency in China,comprising of 15 top-ranking universities and institutions in China.展开更多
With the rapid development of social economy, the number of civil engineering construction projects is increasing. While the number of construction projects is increasing, we need to pay attention to the problem of pr...With the rapid development of social economy, the number of civil engineering construction projects is increasing. While the number of construction projects is increasing, we need to pay attention to the problem of project quality. In the construction of civil engineering projects, the breakthrough and innovation of construction technology can not only bring more economic benefits to construction enterprises, but also effectively ensure the construction quality of engineering projects. Therefore, based on the current situation of construction technology of civil engineering, this paper analyzes the technical points in detail and puts forward corresponding construction opinions, so as to promote the sustainable development strategy of civil engineering construction industry and provide guarantee for the stable development of social economy.展开更多
Introduction: Work-related accidents are frequent and serious in the construction sector. The aim of the study was to determine the frequency and factors associated with occupational accidents on the construction site...Introduction: Work-related accidents are frequent and serious in the construction sector. The aim of the study was to determine the frequency and factors associated with occupational accidents on the construction site of a referral hospital in Benin. Methods: A cross-sectional study was carried out. The sample size was calculated using the Schwartz form adjusted for the number of workers on site and was 129 workers. Random sampling was used. The dependent variable was work-related accidents. The other variables were socio-demographic and occupational characteristics. Data were collected through a questionnaire survey. Medians and proportions were calculated. An association was sought using Chi-square and Fisher tests with a threshold of p Results: A total of 132 workers were included. Their median age was 30 years with an ITQ of [27 - 38];men were the most represented 126 (95.45%) with a level of education higher than or equal to high school in 101 (76.52%) and in the majority with a permanent status 85 (64.39%). Seniority of more than 5 years was observed in 92 (69.7%). Workers working more than 8 hours of overtime per week numbered 57 (43.18%). Exposure to vibrating objects was 49 (37.12%). In terms of psychosocial constraints, 82.58% had high psychological demands;79.53% low decision-making latitude;50.76% low social support. The frequency of work-related accidents was 6.82%, and the only associated factor was the type of worker (p = 0.016). On the other hand, there were 10.2% accidents among workers handling vibrating objects versus 4.98% among those not using them. With regard to psychosocial constraints, the following frequencies were recorded respectively: 6.42% among those with high psychological demand versus 8.7% among those with low psychological demand;7.62% among those with low decision-making latitude versus 3.7% among those with high decision-making latitude;8.96% among those with low social support versus 4.62% among those with high support. Conclusion: Work-related accidents on construction sites must be avoided by all possible means including the management of psychosocial constraints.展开更多
Many kinds of electrical equipment are used in civil and building engineering.The motor is one of the main power components of this electrical equipment,which can provide stable power output.During the long-term use o...Many kinds of electrical equipment are used in civil and building engineering.The motor is one of the main power components of this electrical equipment,which can provide stable power output.During the long-term use of motors,various motor faults may occur,which affects the normal use of electrical equipment and even causes accidents.It is significant to apply fault diagnosis for the motors at the construction site.Aiming at the problem that signal data of faulty motor lack diversity,this research designs a multi-layer perceptron Wasserstein generative adversarial network,which is used to enhance training data through distribution fusion.A discrete wavelet decomposition algorithm is employed to extract the low-frequency wavelet coefficients from the original motor current signals.These are used to train themulti-layer perceptron Wasserstein generative adversarial model.Then,the trainedmodel is applied to generate fake current wavelet coefficients with the fused distribution.A motor fault classification model consisting of a feature extractor and pattern recognizer is built based on perceptron.The data augmentation experiment shows that the fake dataset has a larger distribution than the real dataset.The classification model trained on a real dataset,fake dataset and combined dataset achieves 21.5%,87.2%,and 90.1%prediction accuracy on the unseen real data,respectively.The results indicate that the proposed data augmentation method can effectively generate fake data with the fused distribution.The motor fault classification model trained on a fake dataset has better generalization performance than that trained on a real dataset.展开更多
文摘Construction engineering plays a vital role in urban development,especially as the pace of modern progress continues to accelerate.The widespread use of energy-saving and green environmental protection building materials in this field not only brings convenience to daily life but also promotes the scientific,sustainable,and stable development of construction projects.These materials significantly extend the service life of buildings while supporting environmental protection efforts.This paper explores the practical application value of energy-saving and environmentally friendly building materials in construction engineering,outlines the key application principles,and analyzes their specific types and usage requirements.The aim is to provide a valuable reference for future research and practical implementation.
文摘In order to improve the construction quality and steadily promote the improvement in the level of the construction industry,this paper expounds BIM-based strategies for construction quality control.This paper first identifies the factors affecting the construction quality,analyzes the advantages and value of the application of BIM in construction,and finally analyzes the scenario of applying BIM for future references.
文摘"Environmental protection concept" is the latest project construction concept put forward by Chinas construction industry in the market development. Reasonable, standardized and scientific use of green technology in prefabricated building construction can not only bring into play the higher economic benefits of the building in the market, but also create a better social image for builders and construction units in the market. In order to implement this work, solve the extensive production problems existing in the early development of the construction industry in the market and reduce the problems of high energy consumption and heavy pollution caused by unreasonable construction technology.
文摘With the development of information technology, electronic information technology has been widely used in different fields and industries, which also changes people's lives, improves people's quality of life, and has a great impact on people's work efficiency and quality. With the continuous development of information industry, it also provides a strong guarantee for social development and economic construction. It can be said that electronic information technology has become one of the science and technology with good application prospects, and has brought greater changes to people's work and life. It is also an indispensable technology in the development of social civilization. The application of electronic information technology in intelligent building engineering can create a good environment for construction and management, and ensure the smooth progress of the project.
文摘Urbanization has led to the rapid development of the construction industry.However,this has also led to higher requirements for the construction engineering management.Other than the quality monitoring of engineering construction,the energy-saving properties of the building should also be considered.Therefore,a scientific management approach should be adopted to improve green building management.This paper primarily examines the importance of quality management in green building construction,along with the factors influencing it.It also identifies the quality issues present in current green building construction.Finally,it proposes measures for quality management in the green building construction process to facilitate the industry’s healthy development.
文摘Building decoration engineering mainly carries out various decoration works for buildings,which can provide protection for building components,avoid the influence of nature as far as possible,and help to improve the function of buildings and prolong their life.At the same time,the building decoration project is an important part of the whole construction project,and the probability of bad situation is relatively large,so it is necessary to carry out in-depth exploration for the corresponding management work,clarify the existing problems,and put forward corresponding measures according to the actual situation.
文摘Architectural structure engineering occupies a major position in architectural engineering and has a direct impact on the design quality of the whole building. As far as architectural structure design is concerned, safety and durability have received more and more attention, which are also the two major focuses of current architectural structure engineering design. However, there are still some problems in carrying out these two tasks, which greatly affect the final construction quality. This paper studies the durability and safety of building structure engineering, hoping to effectively improve the overall design quality of building structure and meet the living needs.
文摘In recent years, with the continuous construction and development of China's construction projects, especially the increasing number of high-rise buildings, there is a higher requirement for risk management. In the current construction work of building power projects, relevant managers should pay attention to the analysis of actual construction problems based on the actual situation, constantly change the situation of construction personnel, equipment used and the surrounding environment, identify, analyze and evaluate the safety risks in the actual construction of power cable projects in building power projects, formulate a construction strategy that meets the actual situation, solve various problems in the actual construction of power cable projects in building power projects, drive the good improvement of China's economic construction, and promote social progress in China.
文摘In the urban construction, the development of civil engineering affects people's living standard and life quality of the current civil engineering energy shortages, limits the progress of construction technology in this regard, the relevant ministries and commissions must be reform based on the concept of green building in the preliminary construction scheme, using energy-saving building technology, in order to improve the construction quality;On the basis of the principle of sustainable development, improve the efficiency of resource use, energy efficiency and emission reduction and cost control through innovative technology and building methods. Specific design techniques include wall construction, insulation material selection, heating technology, etc. Adopt various means to ensure the application of energy-saving technology in building construction.
文摘In the construction process of a building project, one of the most critical parts is electrical engineering, which plays a vital role in the whole building. The development speed of Chinese construction industry is getting faster and faster. In fact, the use of functions are also constantly improving, and the use of many functions must rely on electrical engineering to achieve. The further development of science and technology promotes the continuous improvement of electrical engineering technology. Compared with before, great changes have taken place, especially the application of intelligent technology, which provides more power for the development of electrical engineering, which also plays a very important role in Chinese construction industry. This paper discusses and analyzes the application of intelligent technology in electrical engineering.
文摘The application of HVAC system is of great significance to the adjustment of indoor temperature, so as to meet peoples daily life needs and the quality of construction, but also determines whether people can obtain a better quality of life. This paper mainly introduces the specific principles of HVAC installation as well as the current main existing problems, and further puts forward the means of improving the construction quality control of building HVAC engineering, hoping to put forward more reference significance for the construction of HVAC engineering, to ensure the safe and stable operation of HVAC engineering.
文摘Foreword ISO(the International Organization for Standardization)is a worldwide federation of national standards bodies(ISO member bodies).The work of preparing International Standards is normally carried out through ISO technical committees.Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.
文摘At this stage, the importance of green construction technology in building decoration is self-evident. From the perspective of construction enterprises, it can save costs, improve project quality and protect the health and safety of site staff. In the specific implementation process, a large range of new energy-saving and environment-friendly technologies, such as aluminum alloy windows and broken bridges, are used on the construction site, noise pollution is strictly controlled, solid waste is disposed in a recycling way, and environmental-friendly materials are vigorously adopted to inject new vitality for sustainable and healthy development into the entire construction industry.
文摘With the development of economy, the demand for life is getting higher and higher, and the demand for daily water supply in cities is getting higher and higher. Resources are the key factor of social development, and even hinder social progress in some cases. Therefore, the shortage of resources has become a problem to be solved in social development. While the awareness level is improved, the water saving value is gradually reduced, which greatly facilitates the development of drainage. Multi-measures to save water, make better use of water resources, change the outdated application mode, reduce the production cost of enterprises and promote scientific and technological progress are beneficial to the sustainable development of relevant organizations.
文摘Energy-saving design methods of building water supply and drainage system are constantly changing with the development of materials, equipment and technology. In building design, all kinds of new equipment and new technology should be used to reduce the energy consumption level of building water supply and drainage system. The technical emphasis of energy conservation is different. The technology of non-negative pressure and constant pressure water supply focuses on making full use of the residual pressure of municipal water supply. The clean energy hot water supply system can replace the traditional municipal heat pipe network, with excellent energy-saving and environmental protection effects. Reclaimed water reuse and rainwater recycling can realize the nearby utilization of sewage and rainwater, and the energy consumption in the transportation process is low. This paper explores the application of energy-saving and water-saving technology.
文摘With the development of economy, the pace of urbanization is accelerated, the quality of people's life is improved, and the environmental requirements are improved. The most obvious reflection of this phenomenon is that in architecture, the quality of construction projects has an important impact on the security and stability of society because of its pivotal role in people's lives. In order to improve the waterproof performance of construction workers, related technologies have been widely used in the construction process. As one of the main technologies of building construction, it can not only promote the building quality, but also effectively promote the development of the building industry. Therefore, the application of waterproof and anti-seepage technology in construction engineering can effectively promote the construction quality of construction engineering and provide efficient guarantee for its safety.
基金Project(2018YFC0704500)supported by the National Science and Technology Major Project of China during the 13th Five-Year Plan Period。
文摘Accurate basic data are necessary to support performance-based design for achieving carbon peak and carbon neutral targets in the building sector.Meteorological parameters are the prerequisites of building thermal engineering design,heating ventilation and air conditioning design,and energy consumption simulations.Focusing on the key issues such as low spatial coverage and the lack of daily or higher time resolution data,daily and hourly models of the surface meteorological data and solar radiation were established and evaluated.Surface meteorological data and solar radiation data were generated for 1019 cities and towns in China from 1988 to 2017.The data were carefully compared,and the accuracy was proved to be high.All the meteorological parameters can be assessed in the building sector via a sharing platform.Then,country-level meteorological parameters were developed for energy-efficient building assessment in China,based on actual meteorological data in the present study.This set of meteorological parameters may facilitate engineering applications as well as allowing the updating and expansion of relevant building energy efficiency standards.The study was supported by the National Science and Technology Major Project of China during the 13th Five-Year Plan Period,named Fundamental parameters on building energy efficiency in China,comprising of 15 top-ranking universities and institutions in China.
文摘With the rapid development of social economy, the number of civil engineering construction projects is increasing. While the number of construction projects is increasing, we need to pay attention to the problem of project quality. In the construction of civil engineering projects, the breakthrough and innovation of construction technology can not only bring more economic benefits to construction enterprises, but also effectively ensure the construction quality of engineering projects. Therefore, based on the current situation of construction technology of civil engineering, this paper analyzes the technical points in detail and puts forward corresponding construction opinions, so as to promote the sustainable development strategy of civil engineering construction industry and provide guarantee for the stable development of social economy.
文摘Introduction: Work-related accidents are frequent and serious in the construction sector. The aim of the study was to determine the frequency and factors associated with occupational accidents on the construction site of a referral hospital in Benin. Methods: A cross-sectional study was carried out. The sample size was calculated using the Schwartz form adjusted for the number of workers on site and was 129 workers. Random sampling was used. The dependent variable was work-related accidents. The other variables were socio-demographic and occupational characteristics. Data were collected through a questionnaire survey. Medians and proportions were calculated. An association was sought using Chi-square and Fisher tests with a threshold of p Results: A total of 132 workers were included. Their median age was 30 years with an ITQ of [27 - 38];men were the most represented 126 (95.45%) with a level of education higher than or equal to high school in 101 (76.52%) and in the majority with a permanent status 85 (64.39%). Seniority of more than 5 years was observed in 92 (69.7%). Workers working more than 8 hours of overtime per week numbered 57 (43.18%). Exposure to vibrating objects was 49 (37.12%). In terms of psychosocial constraints, 82.58% had high psychological demands;79.53% low decision-making latitude;50.76% low social support. The frequency of work-related accidents was 6.82%, and the only associated factor was the type of worker (p = 0.016). On the other hand, there were 10.2% accidents among workers handling vibrating objects versus 4.98% among those not using them. With regard to psychosocial constraints, the following frequencies were recorded respectively: 6.42% among those with high psychological demand versus 8.7% among those with low psychological demand;7.62% among those with low decision-making latitude versus 3.7% among those with high decision-making latitude;8.96% among those with low social support versus 4.62% among those with high support. Conclusion: Work-related accidents on construction sites must be avoided by all possible means including the management of psychosocial constraints.
基金supported by the National Key Research and Development Program of China (No.2020YFB1713503)the Fundamental Research Funds for the Central Universities (No.20720190009)2019 Industry-University-Research Cooperation Project of Aero Engine Corporation of China (No.HFZL2019CXY02).
文摘Many kinds of electrical equipment are used in civil and building engineering.The motor is one of the main power components of this electrical equipment,which can provide stable power output.During the long-term use of motors,various motor faults may occur,which affects the normal use of electrical equipment and even causes accidents.It is significant to apply fault diagnosis for the motors at the construction site.Aiming at the problem that signal data of faulty motor lack diversity,this research designs a multi-layer perceptron Wasserstein generative adversarial network,which is used to enhance training data through distribution fusion.A discrete wavelet decomposition algorithm is employed to extract the low-frequency wavelet coefficients from the original motor current signals.These are used to train themulti-layer perceptron Wasserstein generative adversarial model.Then,the trainedmodel is applied to generate fake current wavelet coefficients with the fused distribution.A motor fault classification model consisting of a feature extractor and pattern recognizer is built based on perceptron.The data augmentation experiment shows that the fake dataset has a larger distribution than the real dataset.The classification model trained on a real dataset,fake dataset and combined dataset achieves 21.5%,87.2%,and 90.1%prediction accuracy on the unseen real data,respectively.The results indicate that the proposed data augmentation method can effectively generate fake data with the fused distribution.The motor fault classification model trained on a fake dataset has better generalization performance than that trained on a real dataset.
