Key points of water conservancy dike project management

The construction of water conservancy projects can effectively ensure people's normal life and directly promote the economic development of China. According to the construction experience in recent years, this paper discusses the key points of construction management of water conservancy dike projects, and strives to continuously promote the progress of water conservancy projects in China.

Key words: water conservancy levee; Hero management; main points

China Library Classification Number: TL372 Document Identification Number: A.

introduce

Dike construction is an important part of flood control engineering system in China. With the rapid development of various infrastructures, many areas in China are threatened by floods, and these areas must have high-quality flood control facilities to ensure local economic development. In water conservancy projects, earthwork buildings are mainly used to build canals, dikes, earth-rock cofferdams, earth-rock dams and other buildings. It is required to reasonably arrange the construction site and road, select the type and quantity of machinery, connect and match each process according to the terrain, soil quality, soil layer distribution, engineering nature, quality requirements, construction period, engineering quantity, transportation distance, mechanical performance and other factors, so as to ensure the engineering quality and organize the construction with high efficiency and low cost. The quality of earthwork filling directly affects its flood control effect. Therefore, in the actual construction, we must strengthen the construction quality control of earthwork filling, and carry out the construction in strict accordance with the engineering quality requirements to ensure the high-quality and efficient completion of water conservancy projects.

1, the significance of water conservancy dike project management

China has a vast territory, many rivers and lakes, and abundant water resources. Because China is located on the west coast of the Pacific Ocean, the monsoon climate is obvious, so in summer, the precipitation suddenly increases. If rainwater drainage is not done in time, some cities and villages, especially coastal provinces and cities such as Shenzhen, Zhejiang and Shanghai, will be flooded to varying degrees, which will not only cause traffic jams, but also affect people's normal lives. Therefore, it is particularly important to build water conservancy dike project and improve the management of dike project, which is the fundamental place to improve the national infrastructure and urban and rural operation system. At present, China has brought the construction and management of dike projects into the flood control system, and made it at the core. Looking at the development of local water conservancy project management in China, since the 1990s, the Chinese government has invested a lot of manpower and material resources to support dike construction. In the past ten years of continuous construction and development, we have achieved good results. Our country? Fifteen? According to the key special plan of water conservancy development, by 200 1 year, 260,000 kilometers of new dikes will be reinforced nationwide. It can be seen that the rapid development of dike engineering and the continuous innovation of dike engineering management methods have greatly improved China's ability to cope with flood disasters, effectively guaranteed the development of agricultural economy and guaranteed people's quality of life. Nevertheless, there are still some problems in the management of water conservancy dike project, such as the imperfect dike management system and unreasonable distribution of dike construction costs, which seriously hinder the process of water conservancy dike project management and lay a certain hidden danger for China's economic development and people's life safety. Therefore, it is necessary to strengthen the management of water conservancy dike construction. By taking certain measures, the management mode and capacity of dike project are comprehensively improved from the aspects of system, cost and personnel, so that dike project can give full play to its flood control function, and then the harmonious development of social economy and water resources utilization can be realized.

2. Analysis of key points of water conservancy dike project management

2. 1, make preparations before construction.

Before the construction of water conservancy and hydropower projects, the first thing to consider is how to do a good job in the preparatory work, that is, to determine a clear construction plan and a clear construction procedure, and take this as the basis for the subsequent construction work. Like other construction projects, water conservancy dike project is composed of proposal, design bidding, project implementation, feasibility study report, completion acceptance, construction bidding and many other links. In addition, the relevant person in charge must take certain measures to complete various procedures so that the project can be constructed in dry season.

2.2, do a good job of contractor selection.

To a certain extent, the quality of construction units will greatly affect the quality of construction projects. Therefore, we must carefully screen suitable construction personnel. Specifically, before the construction, when we do a good job in project bidding, we must strictly follow the bidding documents of relevant national contractors and strive to be fair, just and open. Only in this way can we ensure that the selected contractor meets the requirements of relevant parties, and at the same time ensure that the main personnel of the contractor have certain strength, rich construction experience and good reputation. In addition, when we review the construction qualification of the construction unit, we must review its contractors to ensure that the actual quantity is basically the same as that quoted in the tender.

In addition, it is worth mentioning that the qualification examination of project managers, technicians and responsible persons should be strengthened. In addition, supervisors can also play a certain role in the construction, and their comprehensive quality will directly play a certain role in the construction progress, project quality and safety of water conservancy projects. Therefore, from this perspective, we must choose a supervision unit with good reputation, strong construction experience and high construction technology. At the same time, it is necessary to strengthen the management of the supervisors actually present to ensure that the number of construction personnel and the comprehensive quality of all construction personnel meet the requirements. The most basic thing is that supervisors must have corresponding qualifications, as well as a certain degree of professionalism and self-cultivation.

2.3. Deepen the internal reform of dike project management unit.

To do a good job in the management of water conservancy dike projects, we must strengthen the internal reform of dike management units, that is, strengthen the management of internal managers. Strengthening the management of people can start from two aspects. First, we should pay attention to people's main role, people-oriented, and pay attention to people's value. This requires managers to care about every employee and attach importance to the work value and work emotion of every employee. Make employees full of confidence and happiness in the work process, so as to fully mobilize the enthusiasm of employees and give full play to the role of human resources. Second, we should implement certain internal mechanisms to stimulate the initiative and enthusiasm of employees. The leaders of grass-roots units of water conservancy dike project management should also formulate a series of systems for them, and clearly define their responsibilities, rights and obligations, so as to standardize their own behavior and bring inexhaustible power to the long-term development of the units. In the process of recruiting and promoting managers, we should also strictly follow the procedures. Managers should be selected from the bottom up except those who are excellent or assigned by superiors. It is necessary to assess their performance, ability and quality, and adopt an open, fair and just selection method to select employees with good performance, strong ability and high quality. In practical work, it is necessary to supervise them. If there is a problem, terminate the cooperation relationship, and those who perform well can continue to be employed. In addition, according to the quality and intensity of personal work, flexible payment of wages, basically referring to the principle of getting more for more work, can appropriately introduce a performance appraisal mechanism to link the actual interests of employees with the salary level, effectively promoting the enthusiasm of employees.

2.3, do a good job in technical management

2.3. 1, dam seepage control and reinforcement

High-pressure filling grouting is mainly used for the grouting of dike foundation, and also for the filling of ant holes and karst caves in dike body. When used for foundation grouting, 50m engineering drilling rig must be used to drill holes from the top of the embankment section to be grouted. The hole spacing is 1.5 ~ 2.0m, and the hole depth should be about 2m. During grouting, the pressure is generally 127.40 ~ 166.60 kPa, and the casing is run to the fill layer to ensure the embankment is dry. The foundation gravel layer is filled with cement slurry, and then it is gradually lifted to the soil layer, and the hole is sealed with yellow mud. This grouting method is mainly used to control piping caused by poor foundation. When used for filling ant nests and caves, the grouting device 30 is used for filling holes around the ant nests or caves with mud to form an enclosure, and then filling until it is filled.

2.3.2, earthwork filling

When the filling ground is uneven, it should not be filled along the undulating slope, but should be filled horizontally from bottom to top. The slope on the cross section of the dike should not be too steep, generally not exceeding1:5; The length of sublevel working face should be greater than 100m (it can be shortened appropriately if there is more manual construction); During construction, there shall be no bounded ditch during soil spreading and compaction, and the construction shall be carried out in layers so as not to affect the construction quality. In soft soil construction, ballast cannot be built behind the embankment first, and both need to be filled in layers at the same time; The working faces of adjacent construction sections should be smooth and rise in a balanced way. If there is inevitable height difference, it is necessary to use step surface for transition. In the process of spreading soil, if the surface of soil material cracks for some reason, water should be sprayed before compaction.

3. Conclusion

China is carrying out economic construction and water conservancy construction. According to the characteristics of China's water conservancy project construction, it has the characteristics of long construction period, large span and wide scope. Therefore, on the whole, its management is more complicated and comprehensive. If we strengthen its management, we can ensure the construction quality of the project and improve the economic benefits of the project. Therefore, from this point of view, in the actual construction process, it is necessary to strengthen the management of each construction link from the aspects of construction unit selection, raw material management and safety production management, so as to achieve the win-win goal of maximizing project quality and benefit.

refer to

Shen Lihui. Key points of water conservancy dike project management [J]. Beijing Agriculture, 20 14, 09:22 1.

[2] Liu Zeng, Zhang Jianwei and Zhang Junxia. Analysis on the Necessity of the Construction of Dike Engineering Management Information System [J]. People's Yellow River, 20 10/0,05:14-15.

[3] Xue. Research and analysis of dike engineering management [J]. Heilongjiang Science and Technology Information, 20 13, 32:206.

Ding, Ya-Dung Suen. Several key research topics in dike engineering [J]. Research on Water Conservancy Development, 2002, 12:59-62.

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