China is rich in water resources, with many rivers and special climatic and geological conditions, which makes the precipitation in China generally show the phenomenon of less in the east and more in the west. In China's production and life, in order to meet the needs of drinking water and farmland irrigation in various regions, since the 1960s and 1970s, China has built various reservoirs, especially power generation and water storage, which not only provide people with drinking water and production irrigation water, but also provide people with clean energy. However, due to the lack of corresponding geological survey data and design drawings in the construction of small and medium-sized reservoirs in China, it is very difficult to reinforce the reservoirs in the future. In this regard, it is the focus of the development of water conservancy work in China to continuously strengthen reservoir reinforcement, standardize the design process of construction units, and ensure the safety of local people's property and the harmony of ecological environment. 1 Present situation and problems of reservoir reinforcement in China Since China's reform and opening up, the management right of small and medium-sized reservoirs in a certain area has been handed over to local governments and relevant functional departments. Therefore, local governments and relevant functional departments should explore, collect and summarize the reservoir construction while managing the reservoir, and further formulate relevant reservoir design and maintenance measures. Due to the lack of supervision by the water conservancy authorities in a certain area, the comprehensive quality of relevant water conservancy technicians is not high enough, and the design and construction of reservoirs and related reservoir maintenance policies are not very clear in daily work. Therefore, they are not familiar with the reinforcement of the reservoir and will not carry out scientific planning and design. 1, the present situation of reservoir development in China Throughout the history of reservoir construction and development in China, there were more than 80,000 reservoirs in China from the early days of the founding of the People's Republic to the end of the last century. Most of them are small and medium-sized reservoirs. Due to the short construction time of small and medium-sized reservoirs and the lack of professional survey, design drawings and construction methods in the construction process, the existing reservoirs can not only make use of their own functions, but also bring great security risks to the lives and property of local residents. In addition, due to the short design period of most small and medium-sized reservoirs and the limitation of construction technology and construction equipment, most reservoirs in China have many problems, such as low flood control ability, obvious leakage of dams and dams, poor stability of reservoirs, outdated building structures and electrical equipment. The construction unit should make more efforts in the design stage of the project. Externally, various advanced technologies and design templates are continuously introduced, and the collection, summary and analysis of various basic data are strengthened to make the project organization design scientific. Internally, it is necessary to strengthen the comprehensive quality of technical personnel and management personnel related to water conservancy work, ensure the coordination of internal and external work, scientifically and comprehensively carry out the reinforcement of small and medium-sized reservoirs, and carry out various constructions in accordance with various national regulations. 2. Danger removal and reinforcement of the reservoir is an important measure to ensure the function of the reservoir, and supervision should be strengthened before and after the reservoir is put into use. Due to the short construction time of most small and medium-sized reservoirs, when the design specification, design technology and construction equipment are not mature, especially when the original geological and hydrological survey data are relatively lacking or distorted, the design unit has not verified and determined the data at all, and often the geological, hydrological and rock test parameters in the danger zone are unclear, and various defects appear in the design stage of reservoir construction. In addition to the design stage, there will also be problems in the reservoir construction stage, such as the low quality of specific construction personnel, the lack of advanced equipment and incomplete basic information during construction, which will lead to frequent construction and affect the quality of the reservoir. The reinforcement of small and medium-sized reservoirs should be led by the local water conservancy authorities, and the corresponding construction units should carry out specific design and construction. In the process of design and construction, the reinforcement of small and medium-sized reservoirs needs to be further improved. 2 How to reinforce the reservoir due to the different reservoir conditions in different regions of China, it is necessary to ensure that the corresponding work is suitable for the local specific conditions when designing the reservoir reinforcement. Judging from the current actual situation, the reservoir reinforcement project in China is still very serious. 1, improve the comprehensive quality of construction workers and managers. Construction personnel are the backbone of reservoir reinforcement design, and professional technicians and managers must participate in its construction and management to ensure the stability and practicability of the project. Improving the comprehensive quality of construction personnel mainly includes improving the professional and technical ability of construction personnel and improving the management and adaptability of construction site; Improving the quality of managers mainly includes improving the overall planning ability of managers and cultivating the overall thinking ability of managers in the construction process. Therefore, the construction unit should regularly organize comprehensive quality training for construction personnel and management personnel. The training content mainly includes the construction procedure, the management system of the construction site, and the ability to cope with specific problems. In order to take necessary systematic and comprehensive knowledge to solve the problems when there are specific disadvantages and problems in the actual use of the reservoir. In practice, the construction unit should actively integrate the engineering design, construction methods and technologies into practice, and according to the actual situation of its own development, adjust measures to local conditions, formulate an organization suitable for strengthening the local reservoir and strengthening the engineering design, and adopt advanced construction management methods and advanced equipment in the actual process, strengthen the construction site management and strengthen the construction project management. 2. Strengthen the reinforcement design of earth-rock dam reservoir, which is a common reservoir form in China. When strengthening this kind of reservoir, the integrity of the necessary data of earth-rock dam reservoir must be guaranteed. In the process of construction, it is necessary to collect and sort out all kinds of original measurement data and make necessary analysis at the same time. In the design, we can learn from the experience of other reservoirs at home and abroad. And all kinds of existing earth-rock dam reservoirs have been scientifically and comprehensively surveyed and counted, and effective geology, mapping, survey, geotechnical test, in-situ test, etc. In order to obtain perfect data for future design work, improve the geological data of the reservoir, make necessary understanding of cracks, subsidence and leakage of the dam body, and make good foundation preparations for construction. Electrical method, ultrasonic wave, geological radar and other technologies can be used for reservoir mapping. Professional and technical personnel need to check the corresponding data to provide basic information for the next reservoir reinforcement. Of course, in the construction design, we should also ensure that the specific parameters meet the national regulations. 3. Improve the project bidding system. The improvement of the bidding system is to ensure the capital base for the implementation of reservoir projects and to continuously improve the bidding quality of reservoir reinforcement projects in the specific practice process. The corresponding construction units should know their specific construction qualifications and comprehensive strength and conduct strict screening. According to the relevant regulations of the state, the tender for reservoir reinforcement project should be standardized and scientific as far as possible, so as to enhance the enthusiasm and competitiveness of all construction units and ensure the quality and safety of construction projects. 4. Strengthening the construction contract and supervision system is the key point of reservoir reinforcement. In the process of construction, flexible use of construction project contracts, standardized management of construction units, and effective restraint of government departments to ensure the smooth progress of reservoir reinforcement projects. At the same time, it can control the specific construction cost and the cost of reservoir reinforcement project, which is helpful to enhance the competitiveness of construction units in the market. The purpose of implementing the project supervision system of reinforcement project is to improve the quality management of reservoir reinforcement project. Implementing the supervision procedure of "one coordination, two management and three control" in the actual construction process is helpful to ensure the quality and order of the construction site and provide necessary guarantee for the smooth completion of reservoir reinforcement. In a word, the present situation of reservoir development in China is still not objective, and there are many problems such as low comprehensive quality of management and construction personnel, lack of funds, backward mechanical equipment and so on. This has greatly affected the development of reservoir reinforcement projects in China. Therefore, our country should design and construct the reservoir reinforcement project from the inside out to ensure the smooth completion of the specific project.

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