Civil Engineering - Estimating and Costing - Discussion
Discussion Forum : Estimating and Costing - Section 2 (Q.No. 42)
42.
The cross-sectional area of the embankment of a canal fully in embankment in the given figure is
Discussion:
12 comments Page 1 of 2.
SMIT DODIYA said:
5 years ago
A1 = (2b1+2sh)*h/2 = (b1+sh)h.
Therefore, A2 = (b2+sh)h.
A = A1+A2 = (b1+b2)h+2sh^2.
Therefore, A2 = (b2+sh)h.
A = A1+A2 = (b1+b2)h+2sh^2.
(2)
Sree said:
7 years ago
The given trapezoid can be divided into one rectangle and two triangles on both sides (to calculate the area).
Tthen for the first trapezoid, rectangular area = b1 * h.
area of both triangles together = s * h(^2).
total area =A1 = (b1*h) + (s*h(^2)).
Like that for second trapezoid, area = A2 = (b2*h)+(s*h^2).
trapezoid area = A1+A2 = (b1*h) + (s*h(^2)) + (b2*h)+(s*h^2).
= (b1+b2)h + 2sh^2.
Tthen for the first trapezoid, rectangular area = b1 * h.
area of both triangles together = s * h(^2).
total area =A1 = (b1*h) + (s*h(^2)).
Like that for second trapezoid, area = A2 = (b2*h)+(s*h^2).
trapezoid area = A1+A2 = (b1*h) + (s*h(^2)) + (b2*h)+(s*h^2).
= (b1+b2)h + 2sh^2.
Paul said:
7 years ago
What will be the right answer? Please explain it.
M. Chowdhuru said:
7 years ago
A=(b1+b2+3H)H.
Jemish said:
7 years ago
The Right answer is (b1+b2) + 2sh^2.
A.kumaresan said:
7 years ago
Here, V = [a1+a2]/2 x h x 2.
Sandeep singh said:
8 years ago
(b1+b2)h+2sh^2.
Saranraj said:
8 years ago
Very useful.
Roy said:
8 years ago
Explain the option C.
Jyoti said:
8 years ago
Here (b1+b2) + 2 sh^2.
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