NZ4202 - Unitec

SNZ NZSr4202 75 8583367 0042474 500
Issued June 1995 NZS 4202: 1 995
SECTION 3 - EXCAVATION
3.1 OVERVIEW
3.1.1
Referto section O, General rules, which shall be read in conjunction with this section.
3.1.2
Theterm"excavation"shall bedeemedtoincludeany methodof excavationthat may
be required and getting out excavated materials by any means necessary.
3.2 PREAMBLES
3.2.1
Particulars shall be given of:
(a)
(b)
(c)
(d)
(e)
Exceptional conditions relating to the works;
Reference to records of test bores;
Ground conditions;
Existing services;
Any other available information.
3.2.2 Rates to include
(a)
(b)
(c)
Excavation in any material encountered other than solid rock:
Trimming sides and forming batters;
Levelling off, consolidating bottoms and any staging required.
3.3 GENERAL PRINCIPLES
3.3.1
Excavation, filling, disposal, hardfill and the like shall, unless otherwise required, be
scheduled in cubic metres.
3.3.2
All measurement shall be net, that is, no allowance shall be made for either bulking
or consolidation. The class of material shall be described by the appropriate name
where known.
3.3.3
The description shall give particulars of the disposal of excavated material. Where
excavation is cut to fill this shall be stated.
3.3.4
The description shall give particulars for keeping excavations and building sitesfree
from storm and percolating waters by pumping or otherwise. When the excavations
extend below the normal water level, the fact shall be stated and, where known, the
water level given. Where springs or running water are likely to be encountered, an
item shall be included for pumping.
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