Geotech Inestigation · MCU22/0192

 

 

This footing is founded
above the critical depth

4 _
Ground/pad level ee

a
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unstable line and is deemed to
eel [ —j be unstable.
Ng,
Lie,
Voy,
stable NG i
Le Piers must be excavated

to below the critical depth
N line to provide stability to
these footings.

th

This footing is founded
below critical line and

 

 

 

Any proposed or existing excavation. The
builder must ensure all excavations are
discovered and the footing and slab is
secured below the critical line accordingly.
This should include a search of all council
& other records for as constructed plans to
establish excavation depths & widths.

Yo

 

 

 

 

 

 

 

is stable
ZN...
~“.,
“.
a
i‘ Q
30 degrees .,
se TRS Ts
Horizontal (“6ferelay) N.S E
S
Critical Depth line measured from deepest In the case of a buried pipe the
point of the excavation nearest the footing. invert level is usually above and
away from the nearest corner
of the excavation.
Critical Depth Line
X
Unearthed Geotechnical P/L. 6 Site Investigation Report 022-164