A flood dike is a flood dike, which refers to a dam built to prevent the river from flooding. The general term for dams also refers to waterproof and water-retaining buildings and structures. For example, it is necessary to step up dike construction to prevent floods. There are two main types of modern dams: earth-rock dams and concrete dams. In recent years, large dams have adopted high-tech reinforced concrete buildings.
Types of flood control dams:
Water retaining structures built along the edges of rivers, canals, lakes, coasts or flood discharge areas, flood diversion areas and reclamation areas are called dikes. Dike is the earliest important flood control project in the world. Dike construction is the main measure for flood control, protection of residents and industrial and agricultural production. After the dike restrains the flood, it restrains the flood in the spillway, which increases the water depth and flood discharge speed of the same flow, which is beneficial to flood discharge and sediment discharge. In addition, the embankment can resist wind, waves and tides.
Dike construction is generally closely combined with river regulation. For example, in order to expand the flood discharge capacity of the river, in addition to heightening and thickening dikes, measures should also be taken to dredge the river, bend and straighten it, rebuild and retreat, and remove obstacles blocking the river in time. In order to strengthen the dike, it is necessary to build a river flow potential control and guidance project and a dangerous section protection project.
Dikes can be divided into river banks, river banks, lake dikes, seawalls, reservoirs, dikes in low-lying areas of flood storage and detention areas, etc. Dikes can be divided into trunk dikes, branch dikes, sub-dikes, remote dikes, separation dikes, flood control dikes, dikes (dikes) and breakwaters. Dike can be divided into earth dike, stone dike, earth-rock mixed dike and concrete flood control wall according to building materials.