What is the working principle of dams?

The main principle of the dam is to raise the water level and form a gap, which can generate electricity, store water and prevent floods.

Brief introduction of the dam:

Dam is a kind of water retaining structure, which intercepts the water flow in the river to raise the water level or adjust the flow. It can form a reservoir, raise water level, regulate runoff and concentrate water head, and can be used for flood control, water supply, irrigation, hydropower generation and improving navigation. The river regulation structures for adjusting river regime and protecting river bed are also called dams, such as groins, shun dams and submerged dams.

Extended data:

The compressive stress caused by self-weight can offset the tensile stress caused by water pressure.

Advantages:

1), safe and reliable. The section size is large, and the ability to resist water leakage, flood, earthquake or war damage is strong, so the accident rate is low.

2) It has strong adaptability to terrain and geological conditions, and the compressive stress of the dam on the foundation surface is not high, so the requirements for geological conditions are also low, and the low dam can even be built on the soil foundation.

3) The flood discharge of the hub is easy to solve and the hub layout is convenient.

4), suitable for all kinds of climate, convenient construction, convenient for mechanized construction.

5) The structural function is clear, and the stress calculation and stability calculation are relatively simple.

Disadvantages:

1, large section size, large amount of cement and stone.

2. The dam stress is low, and the material strength cannot be fully exerted.

3. High uplift pressure is not conducive to stability.

4. Concrete is bulky and requires high temperature control.

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