06/1168 - Change a Development Approval [As Published] · 132006.1168.02

gp

During normal working hours the Contractor shall ensure the continuous presence of a person capable of
and responsible for the control of line and level of earthworks. The necessary template and levels shall
be kept on the site for the purpose of checking the work during its progress.

3.4.3 Excavation from Cuttings

General
The cuttings shall be so worked that the best material available, which in the opinion of the
Superintendent is suitable material, shall be placed in embankments.

Generally all material from cuttings, including drains, which in the opinion of the Superintendent is
suitable material, shall be placed in embankments.

When material that, in the opinion of the Superintendent, is unsuitable for embankments is encountered
in excavation of cuttings and/or the material in the subgrade of the cutting is unsuitable, and/or material
from cuttings is in excess of requirements for embankments the material shall be excavated and
stockpiled.

The Contractor shall be deemed to have satisfied himself as to the full nature of all material to be
excavated prior to tendering. No extra payment will be made on account of the nature or condition of the
material encountered, other than as may be specifically provided for in the Specification.

Batters

The sides of cuttings shall be battered and trimmed to a clean and sharp profile, carried around bends in
even curves all to lines and slopes as shown on the drawings or as approved by the Superintendent.

Any loose rock or material affected by the Contractor's operation which in the opinion of the
Superintendent is unstable, shall be trimmed and removed at the Contractor's expense. Undercutting of
batter slopes shall not be permitted.

Class of Excavation

The rate included in the Schedule of Lump Sum Tender shall be deemed to cover excavation in all
classes of material irrespective of type and claims will not be considered by the Principal or
Superintendent on account of any hard material or rock or any weak material in any excavation.

3.4.4 Construction of Embankments

Compaction of material below ground surface under embankments

The ground surface shall be compacted to 95% relative dry density (standard compaction) to a depth
150 mm below ground surface. For sand, the ground surface shall be compacted to a density index of
not less than 70%.

The frequency of testing this compaction shall be at the rate of 1 test per 1,000 m? of surface area.

Unsuitable Foundation Material

Where in the opinion of the Superintendent the material exposed after stripping on which embankments

41/22382/11840 Girraween Sports Precinct 18
Earthworks Package