Q: In the figure below, the depth of excavation required to form a cutting at 20 m intervals are 0.000, 0.900, 1.500, 3.200 and 3.300 m. given that the roadway is 5 m wide and 80 m long and the side slopes at an angle 30°, calculate the cross-sectional areas of the cutting and total volume of excavation using trapezoidal rule. Chainage (m) C (m) 3.2m 5m (C/tan 30°) (m) (C/tan 30º) + W (m) 30⁰ ((C/tan 30) + W) xC (m²)

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Q: In the figure below, the depth of excavation required to form a cutting at 20 m intervals are 0.000, 0.900, 1.500, 3.200 and 3.300 m. given that the roadway is 5 m wide and 80 m long and the side slopes at an angle 300, calculate the cross-sectional areas of the
cutting and total volume of excavation using trapezoidal rule.
Chainage
(m)
C (m)
3.2m
5m
(C/tan 30°) (m)
(C/tan 30°) + W
(m)
30⁰
((C/tan 30°) + W) x C (m²)
Transcribed Image Text:Q: In the figure below, the depth of excavation required to form a cutting at 20 m intervals are 0.000, 0.900, 1.500, 3.200 and 3.300 m. given that the roadway is 5 m wide and 80 m long and the side slopes at an angle 300, calculate the cross-sectional areas of the cutting and total volume of excavation using trapezoidal rule. Chainage (m) C (m) 3.2m 5m (C/tan 30°) (m) (C/tan 30°) + W (m) 30⁰ ((C/tan 30°) + W) x C (m²)
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