With the development of urbanization in various regions, water conservancy projects have increasingly become the key facilities to ensure urban water use, irrigation of farmland around towns and flood control and waterlogging elimination. In order to ensure the safety and stability of the dam and reduce the probability of safety accidents, dam managers should regularly carry out safety monitoring, strive to find and solve problems as soon as possible, be responsible for the safety of life and property of residents around the water control project, and provide conditions for effectively prolonging the service life of the dam. After fully realizing the importance of safety monitoring in maintaining the safety and stability of reservoirs, how to implement the content of safety monitoring has become another severe challenge that relevant managers have to face. Only by effectively improving the efficiency and ensuring the quality of supervision can the service life of the dam be effectively extended and it can make due contributions to the development of cities and towns. 1 Overview of Zhuzhuang Reservoir in Xingtai City, Hebei Province The Zhu Zhuang Water Control Project in Xingtai City, Hebei Province is located on the main stream of Shahe River in the upper reaches of Li Nan. It is an important facility project to ensure the water and electricity consumption of downstream towns and rural residents. It has many comprehensive functions such as power generation, flood control and drought prevention. It was built in 197 1 year and lasted 14 years to control the area of Shahe River Basin. Zhu Zhuang Water Control Project is mainly composed of spillway tunnel, spillway, two high and low power stations, stilling basin and overflow dam. The dam is 95 meters high and about 544 meters long. The length of the overflow dam accounts for one fifth of its total length, and the elevation of the dam crest is 261.68m.. There are six arc steel gates at the lower part of the dam. All specifications are the same, length 14m, width 12.5m, and flood peak flood discharge can even reach? 44 million meters per hour. Zhu Zhuang Water Control Project has been put into use for nearly forty years. During this long time, employees at all levels in the reservoir actively do their jobs, maintain the rules and regulations formulated within the single λ, obey the management of superiors, and the leaders listen carefully to the opinions of subordinates, creating a harmonious, harmonious and orderly working atmosphere. With the efforts of all the staff, the reservoir has made efforts in flood control, aquaculture, farmland irrigation and urban water supply. 2 Zhuzhuang Reservoir Engineering Inspection and Safety Monitoring in Xingtai City, Hebei Province 2. 1 Zhuzhuang Reservoir Engineering Inspection 2. 1. 1 Engineering Inspection Type Zhuzhuang Reservoir Engineering Inspection can be roughly divided into three categories: regular inspection, daily inspection and special inspection. When is the regular inspection scheduled? Before and after the flood season in Shahe in, the personnel involved in the inspection were monitoring professionals and leaders of relevant departments. The main inspection items include the operation of the steel gate, the sensitivity of the gate opening and closing equipment, the stability of power supply, and whether the communication equipment works normally, so as to ensure the normal operation of the reservoir to the maximum extent and meet the necessary hydropower needs of downstream residents. During daily inspection, relevant technicians should check the working and running conditions of various electrical equipment in detail, check whether there are potential safety hazards in hydraulic structures, and minimize the possibility of possible accidents. When the reservoir encounters sudden special circumstances, it should immediately start the emergency plan, strengthen the management of special inspection, deploy technicians to carry out emergency repair according to the severity of the danger, properly handle the danger, minimize losses and avoid worries. If a strong natural disaster occurs, such as earthquake, rainstorm and typhoon, the water λ in the reservoir may rise rapidly in a short time. Once the water level λ rises above the maximum water level λ line, managers should be alert, shorten the inspection interval, increase the number of inspections, strive to find and solve problems in time, ensure the safety and stability of the dam and the safety of people's lives and property downstream to the maximum extent, and make contributions to the economy of Beijing-Kowloon Railway and Shiwu High-speed Railway.

2. 1.2 engineering inspection record? Where are the managers and technicians? After completing the inspection task, the inspection results must be recorded completely, objectively, comprehensively, exhaustively and truly as soon as possible? In the file, and backup in the computer, easy to consult and browse, and provide the necessary reference for the subsequent maintenance and conservation of water conservancy projects. What should technicians do if they find safety during the inspection? In case of void or emergency, the original data can be saved by drawing, taking photos and recording. Start the emergency plan as soon as necessary. After reporting to the superior, the superior will deploy a professional team to properly solve the safety problem. There must be no luck or dereliction of duty to get away with it, which will eventually lead to irreparable consequences and incalculable losses.

2.2 Safety monitoring of Zhuzhuang Reservoir Usually, the safety monitoring of water conservancy projects includes vertical λ displacement observation, horizontal λ displacement observation and seepage observation. Observation, dam temperature observation, stress observation, expansion joint observation and many other contents. Zhuzhuang Reservoir has accumulated a lot of valuable data in the course of forty years' safety observation. Through comparative analysis, it can be clearly seen that Zhuzhuang Reservoir is not complete. There is a large deformation, and the deformation norm χ is always within the controllable norm χ. Technicians have basically found out its deformation law, and on this basis, they have carried out monitoring and transformation, adjusted some inspection items and monitoring frequency, and met the inspection needs of technicians. Since 1989, researchers have gradually understood the general deformation law of Zhuzhuang Reservoir by establishing a mathematical model of deformation, such as the influence of temperature change on the vertical λ displacement of the dam and the influence of water λ on the horizontal λ displacement of the dam, which has laid a solid foundation for the subsequent renovation and reinforcement work. 3 Safety Maintenance Mode of Zhuzhuang Reservoir in Xingtai City, Hebei Province 3. 1 The main safety maintenance projects of Zhuzhuang Reservoir can be roughly divided into two categories, one is annual maintenance project, and the other is emergency flood control project. The funds are jointly provided by the government departments, the Water Resources Department and the Water Affairs Bureau. Part of the funds are used for equipment renewal and staff salaries, and the other part is used for various purposes of maintenance and maintenance. The items needing regular maintenance in Zhuzhuang Reservoir include upgrading the mechanized control system of steel gates, replacing some piers of overflow dams and carrying out overall performance maintenance, dredging piezometers, replacing corroded metal structural parts, and increasing the moisture-proof and anti-corrosion strength of metal parts. 3.2 Zhuzhuang Reservoir Safety Monitoring and Maintenance Type 3.2. 1 Regular Maintenance Regular maintenance requires relevant technicians to carry out daily inspection and maintenance on the area where faults have occurred, always pay attention to its changes, solve problems as properly as possible, speed up local maintenance, ensure maintenance quality, and nip potential safety hazards in the bud. 3.2.2 After the regular inspection, the technical maintenance personnel will draw up a plan outline for the problems found at the end of the year, arrange the order according to the severity of the danger, solve the thorny and urgent problems first, postpone the problems that can be delayed, and formally start to solve them after verification by the competent department, so as to ensure the safety and stability of the dam to the maximum extent and improve its safety factor. 3.2.3 Emergency repair and maintenance of the project Once serious safety problems occur in the water control project, the emergency repair of the project is difficult, time-consuming and technically complex, the dam management department should immediately notify the design order λ and the construction order λ, convene professionals from both sides, discuss and reach an understanding on the emergency repair of the project, work out a feasible solution, and put it into use immediately after approval by the higher authorities to minimize the loss. Conclusion To sum up, the safety monitoring of the water control project is a long-term and arduous task, which requires employees at all levels to do their jobs well, establish a strong sense of responsibility, fully realize the importance and necessity of safety monitoring for the safety and stability of the dam, strengthen inspections, always pay attention to the operation of the dam, find hidden dangers, eradicate them as soon as possible, ensure the safe operation of the water control project to the maximum extent, and lay a solid foundation for maintaining the normal operation of production and life.

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