Construction of the check Dam

An engineering measure used to conserve soil in erodible areas is the check dam. An erosion control dam reduces the velocity of a waterway so it can control erosion.

Floodwaters are held back, and sediment is trapped. The embankment and spillway are both parts of it. In some check dams, only the embankment is present. The check dam will form a water body behind it at the start of construction, which is gradually filled by sediment deposits.

Functions of Check Dam

The check dams reduce the velocity of water by pre-designing and constructing them. Silt up and trap the silt in gullies to raise the bed level and reduce the slope. Stabilize the slopes on the sides. The soil should allow for plant growth and to contain water for the stability of banks.

Site Surveying of Check Dam

A dam built of concrete mortared rock cannot exceed 8 m in height, while a dam made of log cribs cannot exceed 2 m. An average dam with a height of 2 m in a channel with a 20-degree angle will require 12 m spacing.

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Published By
Arka Roy
www.constructioncost.co
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Precast Concrete Explained: What is it and why should we use it

In the traditional method, we prepare the concrete structures on site, pouring fresh concrete in the place where the structure will be. But the prefabricated construction system works in terms of manufacturing the building components somewhere else and bringing them to site and assembling them. Today, we will try to explain Precast Concrete.

What is Precast Concrete

When individual concrete members that are supposed to fit a given whole structure are manufactured in one place and assembled in another, they are called Precast Concrete members. They can be of various shapes and sizes, targeted for various purposes.

Precast concrete members like beams, columns, slabs, etc. are manufactured in some sort of production area or factory, either in a designated manufacturing firm, or near the building site where accessible. Then they are moved to the actual location where the member will fit, using transports and heavy lifting machinery. When in position perfectly, they are assembled to the existing structure. Unlike the traditional cast-in-situ concrete, these members are not poured on site.

A great example of a building using precast concrete and prefabrication method is the t30 hotel in Lin Gang, China. Believe it or not, this 30-floor luxury hotel was built in just 360 hours! All thanks to prefabrication technology, it is also one of the most environmentally good and sustainable buildings in the world.

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Published By
Arka Roy
www.constructioncost.co