NATIONAL ALUMINIUM COMPANY LIMITED - Rites

SECTION 7
(CIVIL)
1.0 GENERAL
1.1 This section of the bidding document deals mainly with the technical specification needed
for the design and preparation of detailed drawings, getting the design and drawings
approved by the Engineer, fabrication, erection and construction of the necessary civil,
structural tural and architectural works associated with the wagon Tippler plant.. The work shall
have to be carried out both below and above ground level and shall be involving, basements,
equipment foundations, slabs, beams, columns, footings, rafts, walls, steel frames, brick
walls, stairs, trenches, pits, finishes, complete architectural aspects, drainage, sanitation,
water supply (from terminal points to various buildings, conveyor galleries) and all other civil
and structural works associated with the wagon Tip Tippler Plant.
1.2 The specifications are intended for the general description of the work, quality and
workmanship. The specifications are not, however, intended to cover minutest details and
the work shall be executed according to the relevant latest Indian Standard Codes / I. R. S. /
I. R. C. specifications. In absence of the above, the work shall be executed according to the
best prevailing local Public Works Department practices or to the recommendations of
relevant American and British Standards or to th the e instructions of the Engineer. List of I. S.
Codes to be followed is mentioned in the Technical Specifications. The Contractor is
expected to get clarified on any doubts about the specifications, etc. before bidding, in
writing with the Employer in respec respect t of interpretation of any portions of this document.
2.0 LAYOUT AND LEVELS
2.1 The layout and levels of all structures, etc. shall be made by the Contractor at his own cost
from the general grid of the plot and bench mark given by the Engineer. He shall provide all
instrument, materials and men to the Engineer for checking the layout and levels. However,
the Contractor shall be fully responsible for correctness of layout and levels.
2.2 The contractor has to mobilize well qualified survey team along with the survey equipment
for day today survey work. They should use “Total Station” survey instrument for this
purpose.
2.3 The contractor has to setup his own laboratory to facilitate the checking of quality of civil
works with equipments for checking of aggr aggregate, egate, sand, concrete cube, etc.
2.4 Area cleaning including jungle,rubbish,grass,trees etc are to be included in the scope of
bidder.
3.0 DRAWINGS / DOCUMENTS
3.1 The drawings included in the Bidding Document provide a general idea about the work to be
performed under the scope of this contract. These are preliminary drawings for bidding
purposes only and are by no means the final drawings or show the full range of the work
under the scope. Work has to be executed according to drawings prepared by the co contractor
and approved by the Engineer.
3.2 Conceptual arrangement of civil works supported by calculations shall be submitted along
with tender bids. Later on, detailed construction drawings and design calculations for all civil
works for static as well as dynamic analysis (wherever essential) shall be submitted for
approval prior to undertaking construction work.
3.3 Design calculations shall be done in STRAPP / M.S. Office (latest version) and Drawings shall
Technical Specification:Sec-7, Civil
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