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本帖最后由 viper77 于 2014-11-18 21:07 编辑
3.7.3 Drains installed with less than minimum cover (300mm)
Drains constructed of materials having Jess than minimum cover as specified in Table 3.4,
or less than the manufacturer's installation recommendations, shall be covered by at least
50 mm of overlay and then shall be paved with~
(a) 100 mm minimum thickness of reinforced concrete, where subject to heavy vehicular
loading;
(b) 75 mm minimum thickness of brick or concrete paving, where subject to light
vehicular traffic; and
(c) 50 mm minimum thickness of brick or concrete paving, where not subject to vehicular
traffic.
The paving shall extend the full width of the trench, or the drain shall be adequately
protected from mechanical damage.
BUILDING CODE: AS/NZS 3500.2:2003
Plumbing and drainage
Part 2: Sanitary plumbing and drainage |
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