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南非土木工程施工标准BS1部分：现场清理 英文原文节选 20100079 2-2 |
roadbed
in-situ material on which the fill or, in the absence of fill, any pavement layers, are to be constructed
3.11
specification data
data, provisions and variations that make this part of SANS 2001 applicable to a particular contract or
works (see annex A)
3.12
suitable
capable of fulfilling or having fulfilled the intended function, or fit for its intended purpose
4 Requirements
4.1 Areas to be cleared and grubbed
4.1.1 The following areas shall be cleared or grubbed (or both):
a) the borrow areas,
b) the designated areas on which excavations are to be carried out and embankments and structures
are to be constructed, and
c) the areas on which material is to be stockpiled.
4.1.2 The general shape, profile, and levels of the areas that are cleared or grubbed shall not be
materially altered during clearing and grubbing operations.
4.1.3 Unless otherwise specified in the specification data (see annex A), the designated areas in
roadworks shall comprise the portions of the road reserve that fall within the limits of the road prism.
4.2 Clearing
4.2.1 Clearing shall consist of any of the activities described in table 1, as specified in the specification
data (see annex A).
4.2.2 The work associated with activities 2 and 3 (see table 1) shall include
a) excavation to expose the obstruction, including the measures required to stabilize the sides of the
excavation, and
b) the breaking out, removal and disposal of the material causing the obstruction.
4.2.3 All incoming and outgoing pipes of abandoned underground structures or obstructions shall
be sealed with
a) grade 15 concrete which complies with the requirements of SANS 2001-CC1 or SANS 2001-CC2,
or
b) 230 mm thick masonry, using masonry units with a minimum compressive strength of 10 MPa, in
accordance with the requirements of SANS 2001-CM1.
4.2.4 The work associated with activity 11 (see table 1) shall include
a) the breaking up of pavements and excavation to expose the sewer, drain or water main, including the
measures required to stabilize the sides of the excavation;
SANS 2001-BS1:2008
Edition 1
6
b) either the reclamation of the pipe or the breaking up and disposal of the pipe together with any
bedding and concrete haunching to such pipe(s) as specified in the specification data;
c) backfilling trenches in accordance with the requirements of SANS 2001-DP1;
d) the disposal of surplus and unusable material; and
e) the sealing of ends of sewers and drains in accordance with the requirements of 4.2.3.
NOTE The moving of a certain amount of soil or gravel might be inherent in, or unavoidable during, the process of
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