how is a dam built

how is a dam built ? In the places where the melting snow, the rain waters accumulate, dams are established and most of the countries ' electricity production is borne here. As energy is obtained with accumulated water, dams are one of the most cost-free ways of generating electricity. Other agricultural areas are watered and the drinking water provided to the city networks is also obtained thanks to dams. And how do dams do, do they have varieties? Here are the answers to your questions...



The rivers that melt the rains, the streams formed by the melting snow, are constantly flow by providing benefits to the environment where it passes. But the changing climate and the rain does not rain means danger to all nature, including humans. In the case of this thirst, the dams were constructed in order to accumulate and use the water in a place of need. Energy generation is the main goal of dams, utilizing the power of accumulated water. The easiest and most cost-free way to power generation of countries is dams.

 

In particular, dams are vital for irrigation of agricultural areas and water required for urban networks. The situation of destruction means severe flooding to large areas. In addition, the developing construction technologies enable the very large dams to be made today.

 

The large dams disrupt the ecological balance of the area in which they are constructed. These climate changes around the dam are due to adverse effects to all living creatures; The construction of dams on a specific volume across the globe is prohibited.

What is a dam?

What is a dam?

The dam is a facility to be used in many areas, such as water-saving, drinking water and irrigation of agricultural areas, which is to close the valley of a stream and to the rear. The dams, which have been used since the very old times, remain important together with their evolving structures today. These structures, which meet the need for water in all areas of humanity, are the cheapest and most natural way of producing energy in a country.

The height of dams made of concrete, soil or rock fillings can be a few hundred meters as a belt and a denominator. The length of the dams accumulated in the back of the set of water can reach thousands of hectares in the length of kilometers.

How to make dams?

Construction of dams is very difficult, demanding and costly structures. Before a dam is made, geologists and topographs come in, examines the structure of the terrain, its surroundings, the durability of the floor, and if they are confident that the dam is suitable for construction, it can begin. The most important consideration is to ensure that the soil does not leak water. The dam will reduce the cost and labor force to build the most shrinking part of the Stream valley. The alluvial layer must be removed in order to base the depths and the impermeable curtains should be used to prevent water leakage. Concrete pits which are drilled into the depths are also made to prevent water from leaking again.

After the construction of the dams is completed, the stream and rain waters that begin to accumulate behind the set will make up a lake. This is called Dam Lake or reservoir. After enough water is accumulated in the reservoir, special doors are made within the dam to drain excess water, or the water is overrun over the dam wall. If the water is requested to overflow over the wall, special places are left for this. The accumulated waters are released by opening the doors for use when necessary, or hydroelectric power plants are installed to obtain electricity.

 

What are the types of dams? How many types of dams are there?

Dams are made in different ways according to the purpose and structure of the soil to be used. The main types of dams are as follows;

  1. Weight dams: The dams are made in places where the ground is more rocky. It is constructed in a single piece of reinforced concrete, and the section of the dam wall is generally steep trapezoid. Such dams resist the pressure of the water that influences their own weight.
  2. Concrete Dams: The dam type is established in valleys close to the foundation of solid Rock. In places where the floor is not intact and cannot be landed on the Rock Foundation, the filler type dam is preferred. Thanks to the developing technology, the filling type dams can be constructed even where the floor is not suitable.
  3. Belt dams: Dams made of flats or springs. With the load plate, it is transmitted to the edge feet. Such dams are constructed in narrow valleys where the threshold of dams peak length is 5 or smaller. In belt type dams, the valley base and the Shev to be constructed must be intact.
  4. These types of dams resist the pressure of water, their own weight, and their plans. The material used in the Payandali dams is less than used in the weight dams because it is empty between the Payanda. But labor and mold costs are too much. The average height of the dam should be 70-80 m and the inclination angle should be 45-60 degrees.
  5. Rock Filling Dams: The sections are steep trapezoid. There are core parts that provide impermeability in the middle of a cross section. These core structures are made of clay or concrete.
  6. Landfill dams: Soil filler dams composed of gravel, sand and clay made of compressed Earth layers are the most commonly used dam type. There is a wall or a core section that prevents water from leaking in the middle of this dam type.
Note: This page has been translated. Could be a word error. Please consult your specialist




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