What are dams in engineering geology?
A damIs An Engineering Structure constructed across a valley or natural depression to create a water storage reservoir.
What are the geological characteristics for selection of dam site?
Generally a dam site is ideal where a valley is constricted with steep rock slopes. A narrow stream flowing between high, rock walls would naturally suggest a concrete overflow dam whereas a low, rolling plain would suggest an earth-fill dam.
What are geological considerations involved in the construction of dams?
The topography of the dam site, the geological structure of the basin and the slopes, the power of carrying, possible faults, cracks, alluvium thickness, full weir location and capacity, derivation conditions, transportation situation, dam distance of the material to be used in dam construction, 2.
What type geological studies are required before construction of dams?
Historical seismicity studies are also required in case of important dams to have a complete file of the seismic events that might hit the site. Burrow Areas Construction of a dam requires large quantity of construction materials like soil, rock, concrete and aggregates.
What type of engineer builds dams?
Civil engineering is the design and construction of public works, such as dams, bridges and other large infrastructure projects.
Which engineer makes dams?
A specialized discipline and a part of geotechnical engineering, dam engineering provides technical information for planning, construction and maintenance of dams.
What is the importance of geological investigations for dam?
Among those studies is the geological investigations which should be carried out to deduce the geological conditions in the most relevant site, depth of the foundations and their types, cut-off depth, type of the available construction materials, and type of the expected geological hazards.
What is a dam PDF?
DAMS • Dam, structure built across a stream, a river, or an estuary to retain water. A dam is a hydraulic structure of fairly impervious material built across a river to create a reservoir on its upstream side for impounding water for various purposes.
What shape is a dam?
They are curved in the shape of an arch, with the top of the arch pointing back into the water. An arch is a strong shape for resisting the pushing force of the water behind the dam. Arch dams are usually constructed in narrow, steep sided valleys.
What are the different types of geological investigation?
These are accomplished by following two broad methods: direct subsurface explorations and indirect subsurface explorations. The direct methods involve examination of rocks or materials of the underground by digging of drill holes, trial pits, adits, shafts, galleries and exploratory tunnels.