Answer / murali vasudevan

In the extant case the total excavation is
250+240+350+250=1090 CuM. Quantity of filling = 1090 -
(Minus) Quantity of Concrete or other materials that have
gone in to the foundation below Ground Level. (For Eg Take
this as 200 Cum. Then filling required = 1090 - 200 = 890
CuM. But the actual qty of soil required will be less than
890 when we consider the bulking of excavated
sand/materials. So in practise the Qty of soil required for
re-filling the excavated portion = 890-5% of 890 = 845.5
CuM.

Another elaboration is as follows :-

Total Excavation = A
Total materials used for foundation
(Concrete+Rubble+Brick etc) = B
Material required for refilling = C = (A-B)- (A-B)*5/100


Hope this solves your problem..

Answer / gkreddy

contractor should be ansure there must
and should maitain JMR( Joint
Measurement Record) for produce the bill
otherwise bill should be rejected.claint
also insist the contractor to maitain JMR.

Answer / kirshnamurthy

both answers are coreect

Answer / 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.

Answer / rao

The total qty of filling should always be less than or
equal to the total qty of excavation of all types of soils.

Here in this case, the total qty of filling exceeds the
total qty of excavation, Hence the contractor has raised a
incorrect bill.

Before releasing the bill, the quantities are to be cross
checked with drawings and also practically on site visit.

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