Category: Hydraulic Structure
Factors considering Selection of Site For a Bridge & Culvert Construction The selection of a site for bridges and culverts is an art and requires considerable investigation. A few points that deserve attention are given below. 1. A site which is on a straight reach of the drainage should be selected. The curved reach … Continue reading 12 Factors Considering Selection of Site For a Bridge & Culvert construction
What are Under-Sluices or Scouring Sluices? The under-Sluices are the openings which are fully controlled by gates, provided in weir wall with their crest at a low level. They are located on the same side as the off-taking canal. Under sluices are also called scouring sluices because they help in removing the silt near the … Continue reading Under-Sluices And Their Function
What is Chute Spillway The chute spillway is also known as the "through spillway". A chute spillway consists of an open channel, by which water is conveyed from the reservoir to the river or to Nalla below the dam, through a fairly steep slope. The chute spillway is the simplest type of spillway which can … Continue reading Chute Spillway Definition/About Chute Spillway
Definition Of Cross Drainage Work The canal may have to cross the natural drainage like rivers, streams, etc. at different points within the command area. To dispose of canal and drainage water safely, we need to construct a structure at the crossing point. A cross-drainage work is a structure that is constructed at the crossing … Continue reading Definition Of Cross Drainage Work
What is Divide Wall? The divide wall is masonry or a concrete wall constructed at a right angle to the axis of the weir and separates the weir proper from the under sluices. The top width of the divide wall is about 1.5 to 2.5 m. These walls are founded on wells closely spaced beyond … Continue reading Divide Wall And Their Function
Definition Of Barrage A barrage is an artificial barrier across the river to prevent flooding, aid irrigation, navigation, or generate electricity by tidal power. Advantages of Barrage 1. The barrage has good control over the river during the flood. The outflow can be easily regulated by gates.2. There is good control over silt entry into … Continue reading Definition Of Barrage And Their Advantages and Disadvantages
Definition Of Weir A weir is a raised concrete crest wall constructed across the river to raise the water level in the river and divert the water into the canal. Advantages of Weir 1. The bed level of the canal may be higher than the existing water level of the river. In such cases, the … Continue reading Definition Of Weir And Their Advantages and Disadvantages