Sambros International Services
Hydro Power Dams
We build and maintain dams of various sizes for navigational, hydroelectric, diversion, storage, detention, and earthen structures. Above and below the waterline, we work on every aspect of the dam allowing us to complete building and repair work on the entire structure ourselves.
A dam is typically built across a river to create a reservoir in the valley behind it by holding water. They are sometimes built across dry valleys or valleys with small streams to form a water storage area.
Streams and rivers must be channeled to provide a dry area where the dam may be built. Small streams and rivers are typically redirected through a tunnel or a channel built around the dam’s side.
A typical sequence of events for building a dam and establishing a reservoir is as follows:
A typical sequence of events for building a dam and establishing a reservoir is as follows:
- Diverting the river
- Preparing the foundation for the dam
- Construction of the dam
- Arch dam
- Buttress dams
- Embankment dams
- Gravity dams
- Spillways
- Filling the water storage area
- Testing that valves and floodgates
- Monitoring the behaviour of the newly built dam
Hydro Power Dams
Type of Dams:
01 Arch Dam
An arch dam is shaped like an arch, with the top of the arch facing back into the water to create an powerful structural form that can withstand the water pressure behind it. because Arch dams are generally made in narrow, steep-sided valleys, they are typically composed of concrete and require adequate rock support for foundations and sides.
02 Buttress Dam
Buttress dams have triangular-shaped walls, or buttresses, on the downstream side that are positioned at intervals to resist water pressure on the upstream side. They are often formed of concrete or masonry and must be built on solid rock.
03 Embarked Dam
Compacted dirt or locally quarried or dug rocks are typically used to build embankment dams. An embankment dam is shaped like a hill or a bank, with a central core built of substance like clay soils or concrete that prevents water from passing through.
04 Gravity Dam
Gravity dams are held in place by gravity alone. They’re usually composed of concrete, masonry, or both, and have a triangle cross-section. They are best suited to wide or narrow valleys and must be built on solid rock.
05 Spillway Dam
Spillway dams are a type of dam that are used to safely and efficiently transport overflow water over, over, or through a dam.