Silver Oak College Of Engineering & Technology.

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Presentation transcript:

Silver Oak College Of Engineering & Technology. DAMS Created by :Pearl Shah(58) Jeet Agrawal(49) Guided by :Prof. Sejal Desai Silver Oak College Of Engineering & Technology.

What is a dam? A dam is a barrier built across a stream, river or estuary to hold and control the flow of water for such uses as drinking water supplies, irrigation, flood control and hydropower generation etc.

Classification of dams: Dams are classified on several aspects, some of the important aspects are as follow: Based on Hydraulic Design: Over flow dams (e.g. concrete dams) Non over flow dams (e.g. embankment dams) Based on Structural Design: Gravity dams Arch dams Buttress dams Based on Usage of Dam: Storage dams Diversion dams Detention dams

Classification of dams: Based on Construction Material: Concrete / Masonry dams Earthfill dams Rockfill dams Earthfill rockfill dams Concrete faced rockfill dams (CFRD) Based on Capacity: Small dams Medium dams Large dams

Purpose Distribution of Dams Source: International Commission on Large Dams (ICOLD)

Parts of Dams Water intake structures Dam body Sluiceway Reservoir Flow Sluiceway Dam body Spillway Reservoir

Emergency spillway Right abutment Downstream slope Upstream slope Principal chute spillway Spillway training walls Berm Top of dam Riprap Toe drain outlet Toe of embankment Left abutment Emergency spillway

Parts of a dam Dam body: Body forms the main part of a dam as an impervious barrier Reservoir: It is the artificial lake behind a dam body Spillway: is that part of a dam to evacuate the flood water from reservoir. Water intake structures: is a facility to withdraw water from a reservoir. Sluiceway: Gerektiğinde baraj gölünü tamamen boşaltmak, dolusavak kapasitesini azaltmak, akarsu mansabına bırakılacak suyu salmak amacına yönelik tesisler. Diversion facilities: To redirect the streamflow from construction area

Determination of dam location Characteristics of dam location: Geologic formation Spillway location and capacity Diversion conditions Sediment condition Transportation facilities Structural design Availabilty of meterials

Negative impacts Imbalance of the ecosystem Decreased amount of downstream water Spreading of some water-born diseases Reduction in the fertility of farmlands

Thank You