What are the main manifestations of flood disasters?

Flood disasters mainly include natural and social attributes, inevitability and manageability, universality and manageability, suddenness and regularity, diversity and difference, measurability and prevention, variability and reverse increase.

First, according to the characteristics of earthquake floods and water disasters, earthquake flood countermeasures should implement the following principles:

(1) Give priority to prevention and put an end to floods.

② Attach importance to weak links and pay full attention to floods caused by river dams, mudslides and landslides.

Two. Countermeasures after medium and long-term earthquake prediction (1) Reasonable site selection of water conservancy projects should strictly follow the requirements of Code for Seismic Design of Hydraulic Structures. The site selection should try to avoid the reservoir area and its adjacent areas, and avoid areas with complex geological structures, creeping faults, large landslides and mudslides.

1, all kinds of water conservancy projects built in the earthquake zone should be fortified according to regulations. For 1 class water retaining hydraulic structures, according to their importance and seismic risk, the fortification of 1 degree can be increased on the basis of basic intensity. For other special needs, if the design intensity is higher than the basic intensity, it shall be approved by the competent department of the state.

2, earthquake and flood risk investigation, disaster prevention plan. When releasing the medium-term forecast, the government of the earthquake-stricken area should designate relevant departments to analyze the risks of earthquakes and floods according to historical earthquake data and possible earthquakes, determine the dangerous areas where earthquakes and floods may occur, formulate disaster prevention plans, implement them in a timely and step-by-step manner, and do a good job before the earthquake.

3. Seismic safety evaluation must be carried out before the construction of important water conservancy projects, and seismic fortification should be carried out as required. Conduct a general survey and evaluation of existing key water conservancy facilities. Do not meet the seismic requirements, plans should be made to complete the reinforcement within a time limit.

4. Harness dangerous areas of landslides and mudslides along reservoirs, lakes and rivers. The government shall, on the basis of earthquake and flood risk investigation, organize relevant units to carry out necessary engineering treatment for dangerous areas of landslides and mudslides along reservoirs, lakes and rivers according to the degree of danger.

5. Leave the earthquake and flood danger zone for construction. In order to avoid losses caused by floods, buildings, roads, railways, substations, dangerous goods warehouses and other facilities should be left in earthquake and flood danger areas as far as possible. You can refer to the relevant provisions of the flood control system of the water conservancy department.