Dam construction

Barricade is a building of water with complete built across a river or a shunt that deliberately to raise the water level or to get high jump. Classification Weir:

A. Barricade by function divided into three:

* weir tapper

* Weir divider flood

* Retaining dam pairs

B. Weir structure:

* fixed weir

* weir motion

* weir combination

* Weir flower deflated

* Bottom intake weir

Building the physical infrastructure of the water is needed in the management of water resources.

The building is part of the spillway chainsaw waterworks, such as dam or spillway dam that serves to pass the river flow is controlled, the layout of the building is toothed like saws to increase the transfer capacity by extending the effective width of spillway.

Weir type saws are fixed weir spillway layout lighthouse resembles a sawtooth width to obtain a longer effective spillway.

There are some parts in the weir

* Body building weirs

* Intake building

* Rinse building

* building Supplies

Mercu weir dam is the top of the body where the flow of hicks can overflow to downstream. Its function as a determinant of minimum water level.

Forms lighthouse fixed weir:

Mercu round with one or two fingers to rounding

Mercu ogee type, SAF

Mercu width threshold

Lighthouse weir shape commonly used in Indonesia, which form rounded summit. This is because:

simple shape More resistant to impact rock gelundung Resistant to scratching or abrasion

High Mercu Weir

High lighthouse weir (p), which is the height between the floor elevation hillbilly / hick weir in the river bottom and summit elevation.

In determining the height of the lighthouse weir should consider the:

The need for obtaining discharge tapping and high press

High-energy needs flushing

High water inundation will occur

Perfection flow on the weir etc.

High lighthouse weir is recommended no more than 4.00 meters and a minimum of 0.5 H Long Mercu Weir

Long lighthouse dam or weir is also called the span width, the distance between the two walls of the base of the weir (abutment), including the width of the building and its pillars rinse.

building intake

Intake building is a building that serves as the weir stream tapping, to regulate the importation of water and sediment.

Consists of floor / baseline, doors, flood walls, the placement of the door pillars, saqmpah strainer, bridge waitress, raumah doors, and other fixtures.