Disasters caused by heavy rainfall, melting ice and snow, ice, dam break and storm surge are called flood disasters. Rainstorm, heavy rain or long-term rainfall concentration caused by water accumulation, large runoff, timely drainage, resulting in land, housing waterlogging, flooding and other disasters, known as rain and waterlogging disasters.

Prevention and control measures of flood disaster:

1, water conservancy engineering measures

Give priority to supporting the continued construction of the project, expand the drainage system in the newly-built waterlogged area according to the design standards, repair and build bridges, culverts, gates, stations and other buildings, improve the supporting works in the field, timely eliminate waterlogging, and rectify the drainage conditions at the same time to ensure smooth drainage inside and outside the waterlogged area.

2, soil and water conservation measures

Planting soil and water conservation forests, controlling soil erosion and developing local agricultural production. The main functions of soil and water conservation forest are water conservation, soil and water conservation, windbreak and sand fixation, farmland protection, climate regulation, reduction or prevention of air or water pollution, beautification, protection and improvement of watershed ecological environment, thus changing the basic conditions of agricultural production and ensuring and promoting high and stable agricultural production.

Extended data:

Characteristics of flood control and water conservancy projects;

1, which is very systematic and comprehensive. A single water conservancy project is an organic part of various water conservancy projects in the same basin and region, which complement and restrict each other; A single water conservancy project itself is often comprehensive, and its service objectives are closely related and contradictory.

Water conservancy projects are also closely related to other sectors of the national economy. The planning and design of water conservancy projects must proceed from the overall situation, systematically and comprehensively analyze and study, in order to get the most economical and reasonable optimization scheme.

2. It has a great impact on the environment. Water conservancy projects will not only affect the economy and society in this area through their construction tasks, but also affect the natural features, ecological environment and natural landscape of rivers, lakes and nearby areas, and even the regional climate to varying degrees.

This kind of influence has both advantages and disadvantages, so it must be fully estimated in the planning and design, give full play to the positive role of water conservancy projects and eliminate its negative influence.

3. The working conditions are very complicated. All kinds of hydraulic structures in water conservancy projects are constructed and operated under natural conditions such as meteorology, hydrology and geology, so it is difficult to accurately grasp them. They bear the thrust, buoyancy, permeability and scouring force of water, and their working conditions are more complicated than other buildings.

4. The benefits of water conservancy projects are random, and the benefits are different every year according to different hydrological conditions. Irrigation and water conservancy projects are also closely related to changes in meteorological conditions. Have a wide influence.

5. General water conservancy projects are large in scale, complex in technology, long in construction period and large in investment, and must be constructed in accordance with the basic construction procedures and relevant standards.

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