What is dam short note?

What is dam short note?

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability.

What is dam process?

Streams and rivers have to be diverted to create a dry area to construct the dam. Small rivers and streams are usually diverted through a tunnel, or a channel that is constructed around the side of the dam. Soft soils and rocks are excavated to form the route, while harder rocks have to be blasted with explosives.

What makes a dam a dam?

What is a dam? A dam is a wall of solid material built across a river valley or catchment to block the flow of the river. The dam wall creates a lake and allows water to continue flowing down steam of the dam. Dams create a permanent supply of water for the community to use.

How the dam is built?

The dam is raised in steps of about 600 mm. The edges are formed first, by making low concrete walls on the upstream and downstream faces of the dam. Concrete is then transported to the area between the walls and spread in a thin layer using bulldozers. Rollers are then driven over the concrete to compact it down.

Which dam is known as gravity dam?

A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it.

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Where is the highest gravity in the India?

Bhakra Nangal Dam is the highest gravity dam in India.

What is low and high gravity dam?

A low gravity dam is the one whose height is less than Hmax. A high gravity dam is the one whose height is greater than Hmax. A gravity dam is called as low dam if the base width is designed from the consideration of the resultant falling as close as possible to the extremities of the middle third of the base.

What makes a dam?

A dam is a structure built across a river or stream to hold back water. People have used different materials to build dams over the centuries. Ancient dam builders used natural materials such as rocks or clay. Modern-day dam builders often use concrete.31 July 2019

Which is the highest gravity in India?

Bhakra Nangal dam

What is the type of dam?

The two main types are earthfill dams and rockfill dams. Earthfill dams are made up mostly from compacted earth, while rockfill dams are made up mainly from dumped and compacted rockfill.The two main types are earthfill damsearthfill damsAn embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core.https://en.wikipedia.org › wiki › Embankment_damEmbankment dam – Wikipedia and rockfill dams. Earthfill dams are made up mostly from compacted earth, while rockfill dams are made up mainly from dumped and compacted rockfill.

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How does a dam made?

Concrete dams are made of strong, solid concrete walls that resist the pressure of water. Earth and rock fill dams have a solid core of clay in the middle to prevent water leakage, and an outer layer of rock for strength. There are dams that are built with a combination of both concrete and earth and rock fill.Concrete dams are made of strong, solid concrete walls that resist the pressure of water. Earth and rock fill damsfill damsAn embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and a dense, impervious core.https://en.wikipedia.org › wiki › Embankment_damEmbankment dam – Wikipedia have a solid core of clay in the middle to prevent water leakage, and an outer layer of rock for strength. There are dams that are built with a combination of both concrete and earth and rock fill.

Which dam is the highest gravity?

The Grande-Dixence dam

What are three types of dams?

Three common types of concrete dams are: gravity, buttress and arch. Gravity: Concrete gravity dams are the most common form of concrete dam.19 Apr 2022

How do you make a dam?

What is the main function of an dam?

The purpose of a dam is to impound (store) water, wastewater or liquid borne materials for any of several reasons, such as flood control, human water supply, irrigation, livestock water supply, energy generation, containment of mine tailings, recreation, or pollution control.19 Apr 2022

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What is the principle of dam?

Dams act as the place where water is held back and released in a controlled manner through hydraulic turbines, enabling the mechanical energy of the water to be transformed to electrical energy. Typical dams work to create a reservoir where water is stored at a given height.22 Oct 2021

What is a dam and why is it used?

A dam is a wall of solid material built across a river valley or catchment to block the flow of the river. The dam wall creates a lake and allows water to continue flowing down steam of the dam. Dams create a permanent supply of water for the community to use.

What is dam answer?

dam, structure built across a stream, a river, or an estuary to retain water. Dams are built to provide water for human consumption, for irrigating arid and semiarid lands, or for use in industrial processes.2 May 2022

What is a dam used for?

A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.31 July 2019

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