Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 1 (Q.No. 3)
3.
An ideal vertical curve to join two gradients, is
circular
parabolic
elliptical
hyperbolic
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
45 comments Page 2 of 5.

Akshu said:   8 years ago
Ideal vertical curve is circular if sight distance available throughout the length of curve is constant it possible only in case of Joining one Gradient.

In this case, two gradient are Joint by curve therefore sight distance is not constant throughout the length of curve so we provide Simple Parabolic curve.

Shuvam dey said:   8 years ago
Parabolic is done beacause in case of parabolic sight distance is large visible.

Sathish said:   8 years ago
A is the right answer.

Varun said:   8 years ago
Ideal curve is circular but parabolic is provided.

Rotam said:   8 years ago
Well you guys are too good at making simple things unexpectedly complicated.

Sadaf said:   8 years ago
The rising gradient is change 0.025 and falling 0.013333 beginning tanget elevation is 21.85 and end tangent elevation is 24.18.

JUBAYER ISLAM said:   8 years ago
How it will be parabolic?

Dhanu said:   7 years ago
How it is happen? Please explain.

Subhash Kumar said:   7 years ago
A cubic spiral is suitable to cubic parabola but latter is used mostly because of its ease in setting out. Vertical curves are provided to negotiate the gradient of the two straights. Parabola is most suitable shape for vertical curves since it provides a uniform rate of change of gradient and smooth riding condition.

Atul said:   7 years ago
Ideal curve is circular as per irc code.


Post your comments here:

Your comments will be displayed after verification.