With the continuous development of the concept of green architecture, the integration of a large number of environmental protection concepts in the architectural design is the focus of green architecture design.Saving natural resources can also promote the harmonious development of man and nature. Green building design concept to meet the needs of people at the same time, promote the harmonious development of man and nature.Therefore, the concept of green architecture should be fully used in the design of architecture.

With the continuous development of China's modern economy, it has greatly promoted the pace of the process of urbanization. In the construction of urban infrastructure, municipal drainage system occupies the main position, it can clear the city water, beautify the city, and create a comfortable living environment. In order to play the role of the municipal drainage system to the extreme, the relevant departments should put the drainage system's maintenance and management into practice, and find out the problem and solve it in time. Based on the operation of municipal drainage system, this paper discusses the problems encountered in the maintenance and management of drainage system, and puts forward effective solutions to the problems.

The petrochemical pipeline installation project is a very complicated project, each link must abide by the construction plan  strictly to ensure the smooth operation of the petrochemical process pipeline and the safe operation of the pipeline.However, from the current situation, there are many problems during the installation of petrochemical process pipeline.To solve these problems effectively, we must choose a scientific and rational method, a clear management of the content, a comprehensive consideration of the problem and deal with the problem in time to improve the installation efficiency of petrochemical pipelines and promote the rapid development of petrochemical technology.

As an important construction link in the construction project, the quality of the water supply and drainage directly affects the overall quality of the construction project. Because of the strong function of the water supply and drainage project, the construction quality is easily affected by the construction method. For this reason, construction enterprises should attach importance to the mastery of water supply and drainage construction methods. And further understand the relevant precautions of construction water supply and drainage construction, in order to achieve the purpose of improving the quality of water supply and drainage construction. 

The karst is one of the main bad geological problems, which determines the design of the subgrade treatment plan and the safety of the engineering construction.This paper summarizes the key technology of grouting in karst roadbed regulation, and the following factors should be considered in grouting scheme selection: grouting method, technology, material, equipment, grouting control and detection means and standard of grouting effect.Through the use of high density electrical method, transient surface wave method, core drilling method, pressure water test method and so on, study the targeted detection methods for different coverage karst types and different remediation methods.

With the rapid development of China's market economy, to a certain extent, the market scale of building engineering has been widened. At the same time, it also brings convenience to people's work and life. Therefore, people put forward higher standards for the construction quality of building engineering. In building engineering construction, civil engineering construction technology is the core part, directly affecting the construction quality of building engineering.

At present, with the policy support of the state in the coordinated development of the region, the modernization of the city is vigorously promoted and the level of the national urbanization is promoted rapidly and continuously. As a project of urban infrastructure construction, road and bridge plays a vital role in the construction of the whole urban road network system. Throughout the construction process of every subsystem of road and bridge, the main influence on the later period of road and bridge is waterproof pavement. The level of construction of waterproof subgrade is closely related to the construction quality and construction level of the entire project. The two are coordinated and mutually unified, and how to further improve the waterproof road surface construction technology, construction technology and construction quality, has become a major research topic for each road and bridge construction company^[1]. From the technical point of view, the paper actively excavates potential security hidden dangers and threats hidden in the construction of road and bridge, and makes a comprehensive analysis of some of the most prominent problems, and explores an effective way to effectively solve the problem.

Welding is a process of joining the similar or different metals. Improper welding process leads to inaccuracies and misalignments of structural members, causing high cost and delays in work. Therefore, it is essential to predict the temperature field during welding process. Different techniques can be used to predict the temperature field, which may lead to structure distortion. The present study aims to develop a finite element solver for transient heat conduction analysis. The final solution is calculated from the assumed solution and compared with the numerical computations. The solver is then modified for use of moving heat source. The modification comprise, change in governing equations with the inclusion of phase change. The moving heat source continuously increases the temperature during motion. When the heat source completes a pass, model is allowed to cool down in order to study the temperature distribution during cooling.

With the development of China's economy, the construction industry has made considerable progress, and the quality of engineering survey is also increasing. At the present stage, many new surveying and mapping technologies have been applied in the construction engineering, which not only lays the foundation for the engineering survey, but also effectively improves the quality of the engineering survey. This paper analyzes the importance of engineering survey, and studies the application of new measurement technology in engineering survey, and expects to be helpful for related measurement enterprises.

The safety of the production process of the construction project will directly affect the personal safety of the construction personnel. Therefore, the safety management of the construction project should be strengthened so as to achieve the goal of sustainable development. This paper studies the problems and solutions in building engineering safety management.

Electric energy, as an important material basis for the survival and development of human society, is closely related to the national economy and people's livelihood and strategic competition. Throughout China's power system, if we want to fundamentally guarantee the sustained growth of social economy, we need to ensure the quality and safety of power supply in the whole system. In recent years, with the continuous enrichment of the types and form of electrical products, the demand for power resources in social production and life expanded gradually, to a certain extent, it stimulated the application of all kinds of electrical appliances in electronic technology. Especially, the electrical engineering and its automation technology are widely used in the construction of various projects. Through their own standardization and refinement, the electric power system has greatly promoted the progress and development of the power system in the aspects of operation reliability and stability.^[1] This paper focuses on the electrical engineering and its automation technology, and analyzes the advantages of its application in the power system, and looks forward to the future development trend of the technology in the power system from the perspective of long-term interests.

The bending and vibration behavior of a curved FG nanobeam using the nonlocal Timoshenko beam theory is analyzed in this paper. It is assumed that the material properties vary through the radius direction.  The governing equations were obtained using Hamilton principle based on the nonlocal Timoshenko model of curved beam. An analytical approach for a simply supported boundary condition is conducted to analyze the vibration and bending of curved FG nanobeam. In the both mentioned analysis, the effect of significant parameter such as opening angle, the power law index of FGM, nonlocal parameter, aspect ratio and mode number are studied. The accuracy of the solution is examined by comparing the results obtained with the analytical and numerical results published in the literatures.