Civil Engineering - Highway Engineering - Discussion
Discussion Forum : Highway Engineering - Section 1 (Q.No. 8)
8.
If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is
Discussion:
63 comments Page 2 of 7.
Harsha said:
5 years ago
I think there is no grade compensation.
(1)
Jai vislavath said:
7 years ago
As per the IRC recommendations grade compensations should be done only when the Grade is above 4%.
Let's assume now grade compensation required, even though minimum GC of [(30+R)/R] and 75/R should consider. If we use 75/R, we will GC as 0.25 and Using 30+R/R we get 1.1.
So, we should consider only 0.25 instead of 1.1.
Let's assume now grade compensation required, even though minimum GC of [(30+R)/R] and 75/R should consider. If we use 75/R, we will GC as 0.25 and Using 30+R/R we get 1.1.
So, we should consider only 0.25 instead of 1.1.
Rahul R M said:
8 years ago
As per IRC, NO grade compendsation is provided for gradient lesser than 4%. So answer is E.
BISWAJIT SARDAR said:
7 years ago
The answer should be 3% because gradient below 4% grade compensate is zero.
Uday said:
8 years ago
Correct option E.
No compensation flatter than 4%.
No compensation flatter than 4%.
Dineshkumar said:
8 years ago
According to IRC, a grade compensation of, (30+R/R) , maximum 75/R has to be provided for the grades more than 4%.
Ramu said:
8 years ago
How the value 75 will come?
RAJESH said:
8 years ago
Grade compensation only required when the gradient of the road is greater than 4%.
Sabin Acharya said:
8 years ago
As per NRC-2070 grade compensation only required when the gradient of the road is greater than 4% and i.e (30+R)/30, where R is a curve radius in m. And maximum permissible grade compensation is 75/R.
Virendra singh said:
8 years ago
Thanks, for this explanation.
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