Volume-IF - JantERmantER

DCPL-K4A02
The degree of compaction shall be sufficient to achieve a dry density of not
less than 90% of proctor's dry density at optimum moisture content as
per IS-2720 (Part - VII) or a relative density of 75% as per IS-2720
(Part-XIV) as applicable depending on the nature of back filling material as
stated in clause no. 3.7.2 of this specification. The work of back-filling will
be accepted after the Engineer is satisfied with the degree of compaction
achieved.
5.0.0 INFORMATION TO BE SUBMITTED
5.1.0 With Tender
5.2.0 After Award
Details of Equipment proposed to be used for excavation, back-filling and
compaction have to be submitted along with the tender.
After award of the Contract the successful tenderer shall submit the
following for approval and adoption :
a) The Contractor shall submit a detailed programme of the work
as proposed to be executed giving completion dates of
excavation of the various foundations and the time required for
back-filling and compaction after completing the foundation for
structures.
The programme should show how the excavation and back-filling
quantities will be balanced, minimising temporary stacking of spoils.
It is to be noted that the Engineer even after initial approval of the
programme, may instruct to enhance or retard the progress of
work during the actual execution, in order to match with the
progress of foundations without attracting any claims from the
Contractor. The initial programme being submitted by the
Contractor should have sufficient flexibility to take care of such
reasonable variations.
b) The Contractor shall submit drawings showing details of slopes,
shorings, approaches, sump pits, dewatering lines, fencing etc. for
approval of the Engineer for adoption.
(PCA.774.S034sca1) V.II-D2/S-II : 17