What are the characteristics of design changes in water conservancy construction?

Water conservancy construction, as a construction content that can promote people's livelihood and economic development in China, is of great significance to promote social and economic construction in China. Therefore, China has invested a lot of material resources and manpower in the construction of water conservancy projects. In the actual management process, managers should pay more attention to the water conservancy project according to the basic situation of the project and proceed from the details, do well the design changes in each design link, standardize the management procedures of the design changes of the water conservancy project, and meet the design requirements of the project on the basis of ensuring quality and safety. The following is the main content introduction of the characteristics of water conservancy construction design changes brought by Zhong Da Consulting for reference.

However, at present, the design of water conservancy projects in China has just started, the development is not mature enough, and the relevant laws and regulations are not perfect enough to restrict different types of water conservancy construction designs for some large-scale water conservancy projects. The authority of design change is not clear enough, and even some projects use this loophole to reduce the construction content at will, reduce the construction cost and avoid the economic audit of design change of water conservancy projects, which has caused great losses to the whole water conservancy project construction. There are also some gaps in water conservancy construction design change projects, and the constraints on design changes are not strict enough, which leads to the lack of effective supervision and management system for many design changes. Even some construction units will take advantage of design changes without implementing the construction approval system, and set up established facts at will in the name of construction before approval, which has a great influence on the later construction design of water conservancy projects. In addition, there is a lack of professional and systematic understanding in the design of water conservancy projects. According to the newly promulgated Regulations on the Management of Engineering Construction Survey and Design, the changes of engineering survey and design contents are unified in the process of water conservancy project construction, but there are no clear provisions on the authority and contents of some major scope modifications in design changes, and there are no specific implementation rules, which has caused certain difficulties for the further development of water conservancy project construction in China.

Method of dividing design changes

In the process of water conservancy project construction, there will be various types of design changes. In this way, the scale, tasks and design standards of the project will have a great impact on the construction period and safety of the project, and will also have a great impact on construction efficiency and investment. This requires further improvement of design change management of water conservancy construction projects to ensure the construction safety and quality of the project.

Relevant principles to be followed when dividing design changes

(1) In the classification of design change types, factors such as investment, benefit, function, quality and safety of the project need to be considered. For some construction contents with great influence, it must be approved by the examination and approval authority first. If it will not have great influence on the project, the relevant authority can be provided to the project management organization.

2) In the process of water conservancy project construction, the types of construction management and design changes should be one-to-one, so as to give full play to the functions of each management level, fully embody the rights and responsibilities of each level, reduce the cost of design changes as much as possible, and improve the construction speed of the project.

(3) From the definition standard of design change, because the design change of some small water conservancy construction units is more complicated, the classification method of design change of large and medium-sized construction projects can be used to specify some methods.

Criteria for defining major design changes When defining some major design changes, the Provisions on Compilation of Preliminary Design Report of Water Conservancy and Hydropower Construction Projects is mainly used as a reference for scoring. It can be used as a reference for some water conservancy projects with transparent concepts. Taking the scale and design exceeding the standard as the main consideration factors, it affects the construction period and construction safety between the core building and the construction scheme of key parts, which is the basis for the smooth development of the later construction. In the process of investment, all prices that do not exceed the prescribed standards are excluded. In addition, there are other factors that will affect design changes, such as land acquisition and immigration, which directly affect the design changes defined separately.

Methods of improving design change management

Formulate management measures for design changes. In the process of engineering design and production, design changes have a direct impact on the construction safety and quality of the project. Therefore, government departments should make design changes after fully considering the basic situation of the project, and formulate management measures and procedures corresponding to the design changes. The construction unit should actively communicate with the design unit to ensure that the construction can be carried out in strict accordance with the construction standards to prevent potential safety hazards on the construction site. At the same time, the construction department and the construction unit should clarify their respective responsibilities, formulate practical management measures, carry out quality control in the early stage of project construction, and carry out strict infrastructure management to meet the construction requirements of the project construction.

In the process of water conservancy project construction, survey and design are the basis of project construction and the basic measures to ensure the safety and quality of the project. In the process of survey, surveyors should improve their awareness of quality control, ensure the rationality of survey funds, survey cycle and survey technology, improve the control of engineering foundation work, further improve the design scheme and prevent loopholes in the design process. The owner should actively communicate with the design unit, strictly implement the relevant engineering construction standards, further improve the safety management of engineering construction, and avoid design changes.

Improve the management reform of small and medium-sized water conservancy projects. Because the design change of water conservancy projects has a long history in large-scale water conservancy projects, it has rich management experience and relatively sound management procedures and systems. In the actual management process, you can refer to the relevant management standards. In the current construction process of water conservancy projects, there are more and more small water conservancy projects. However, due to the imperfection of the management system, some details are often not paid enough attention to in the actual management process. Therefore, when making design changes, management needs to be improved. When designing small and medium-sized reservoirs, the change strategy should be designed according to the construction process. In order to ensure the accuracy of the design change, the change should be carried out according to the design requirements.

In short, with the rapid development of the water conservancy industry, the role of water conservancy projects is gradually reflected, the government pays more attention to water conservancy projects, the change management of engineering projects is gradually improved, and the engineering design changes are becoming more and more scientific. Through the scientific management of construction, the change efficiency has been improved, and the improvement and promotion of the project to the engineering construction have been fully exerted. When the project is changed, it should be managed in strict accordance with the basic procedures and principles of the change, improve the audit of the change content, and ensure that the change is carried out on the basis of meeting the change conditions. When the project is changed, the contractors should cooperate with each other to ensure the scientificity and efficiency of the change and make the project achieve good economic benefits.

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