The document describes the centre line method for calculating quantities of excavation, uncoursed rubble (UCR) work, and brick work for a wall. It provides an example where the centre line length of the wall is calculated by adding the lengths of sections with different widths. This total length is then multiplied by the width and depth/height of each material to determine the quantities in cubic meters of UCR work and brick work for the wall.

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SESSION: 04 CENTRE LINE METHOD
Example:
3. Find out quantities of following items of work
i. Excavation work ii. UCR work iii. BRICK WORK
Step 1:
Calculate the centre line length of the wall, and then multiply it with the breadth and depth
of the wall to find out quantity.
= 5.3 x 4 + 4.3 x 3 = 21.2 + 12.9 m = 34.1 m
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Measurement sheet:
Sr.no.
Work description Unit No’s Length Width Height/Depth Quantity Total
Quantity
1.0 UCR work (W-0.6m)
M3 1 34.1 0.6 0.3 6.14
2.0 UCR work (W-0.5m)
M3 1 34.1 0.5 0.3 5.12
3.0 Brick Work (W-0.3m)
M3 1 34.1 0.3 3.5 35.81