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A bill was raised by contractor which read as follows
1.) Excavation in normal soil upto 1.5m - 250 cum
2.) Excavation in normal soil 1.5m to 3m - 240 cum
3.) Excavation in soft rock - 350 cum
4.) Excavation in hard rock - 250 cum
5.) Filling with available soil - 825 cum
6.) Filling with bought out soil - 1100 cum
How can I verify the above quantities, especially for item
no. 5 & 6?
What checks are necessary before releasing the bill ?
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Answer Posted / u.arunkarthick
here the total excavation qty is 1090 m3, then minus the qty
of concrete used for footing and add consolidation of soil
as 2 to 3%, example if we excavate 1m*1m*1m = 1m3 of
excavated earth is there, then refill that area needs 1.2m3
because of soil consolidation.
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