Civil Engineering - Estimating and Costing - Discussion
Discussion Forum : Estimating and Costing - Section 2 (Q.No. 32)
32.
The ground surface slopes 1 in 50 along a proposed railway embankment 150 m in length. The height of the embankment at zero chainage is 0.5 m, the width is 11 m and side slopes 2:1. If the falling gradient of the embankment is 1 in 150, the quantity of the earthwork calculated by prismoidal formula, is
Discussion:
17 comments Page 2 of 2.
Burra pavan said:
4 years ago
Please explain the detail answer.
(1)
Sb221 said:
4 years ago
I'm not getting this, Please explain the answer.
Adnan said:
4 years ago
There is not clear idea in them.
Trapezoidal base area is a+b/2 into h.
Then it is getting the wrong value.
is there someone to do step by step it? Anyone explain it, please.
Trapezoidal base area is a+b/2 into h.
Then it is getting the wrong value.
is there someone to do step by step it? Anyone explain it, please.
Mannu verma said:
3 years ago
A1 = (11+13) * 0.5/2,
Am = (11+17) * 1.5/2,
A2 = (11+22) * 2.5/2.
Put these values in prismatic formula.
Then, I find;
3250m3 is the right answer
We can find by given details
We can create diagrams in the mind.
The ground on slop 1/50 we will take bottom elevation,
Road slop will be given 1/150 top elevation.
Top and bottom elevation of A1 = 0.5, 0.
Top and bottom of elevation of Am = 0, - 1.5.
Top and bottom elevation of A3= -0.5, -3.
Am = (11+17) * 1.5/2,
A2 = (11+22) * 2.5/2.
Put these values in prismatic formula.
Then, I find;
3250m3 is the right answer
We can find by given details
We can create diagrams in the mind.
The ground on slop 1/50 we will take bottom elevation,
Road slop will be given 1/150 top elevation.
Top and bottom elevation of A1 = 0.5, 0.
Top and bottom of elevation of Am = 0, - 1.5.
Top and bottom elevation of A3= -0.5, -3.
(2)
Soumya Ranjan Sahoo said:
2 years ago
{(11+13)/2×0.5 + (11+21)/2×2.5}/2 × 150 = 3450cum is the right answer.
(5)
Egide Ndatimana said:
2 years ago
Please explain to us how A be the right answer?
Saleha said:
6 months ago
Please explain me clearly.
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