What is Flyover?
A flyover is an overpass, a high-level road bridge that crosses over a highway interchange or intersection. In this type of structure, one road carries over another.
Flyovers are constructed to provide passage over an obstacle without blocking the path below. The passage needed maybe a road, highway, or railway.
Types of Flyover:
Normally, there are two types of flyover as given below:
- Simple Flyover.
- Cloverleaf Flyover.
Lets discuss about these two types of flyovers.
1. Simple Flyover:
This is the most commonly used flyover. In this type of flyover, a highway is used for fast traffic, which is made to pass over a high level by a bridge, providing foundations in both directions, and a slow walk is constructed to pass under the flyover.
2. Cloverleaf Flyover:
Actually, they are clover-shaped interchange. In this type of flyover, an Inter-change is a junction that utilized a grade separation method to permit the traffic flow from one or more highways through the junction even without actually crossing it or without disturbing the movement of other traffic streams.
Construction Process of Flyover:
The construction process of a flyover depends on the types of flyover you want to construct.
In this article I have described the construction process of R.C.C. flyover.
- The first step is soil testing to determine the strength of the flyover and the type of foundation required.
- After that soil execution is done.
- Construct the pile.
- Provide the pile caps.
- Now provides piers, pier caps, and bearings.
- In this step retaining wall is constructed on both sides of the flyover.
- Construct the deck slab.
- In the final step, road construction and bitumen layers are provided.