Slope Stability Report - Site 1

PRACTICE NOTE GUIDELINES FOR LANDSLIDE RISK MANAGEMENT 2007

EXAMPLES OF GOOD HILLSIDE ee

 
 
 
 
 
  
  
 
 

Surface water interception drainage

Waterton, edequately sited and founded
rood water storage tartks (with due regard for
Impact of potertial ipakage)

Fleaib le structure

Roed water piped aff ate or stored

Onsite detention tanks, walertight ard
od fourdied. Poterlial teakage

   
  

\— Cutting and filing minimised in development

Sewage aftuant pumped cut or connected to seinne:
Tanks adequately teunded and watertight. Potential
legiage managed by suh-scil draing

‘
“_. Engingered retaining walls with both surface and
subsurface drainage (constructed before dwelling) 2
© AGE (2006)

EXAMPLES OF POOR HILLSIDE PRACTICE

Unstabfised rock topples
Bnd terete doensiope

Vegatation removed ——

    
 
 
 
 
  
 
 
  
  
  

 

Discharges ot rootwater soak ‘Staee unsupported \ }
meny rather than conducted off out fails 1
ule & to secure storage for re-use \
s '
‘Sruciure unatie jo tolerate —, ~
tattorrent and cracks inary = » \
a“ a ~ — \

Poorly compacted fil cotties a 6 . »,
uneverty and cracks pool 2a 5 \ LD,
- \ x

inadequate walling unatie LY >
bo support i y \
ry

Loose. saturated A cides
and posaily flows doweslape

Incetoquataby supported cut tale rc BS seat) Roohwaner introduced into slope

Sarabed

‘Dwelling met founded in bedrock

\___-Aptence of subeod drminage within 4
—— Pondect water enters shape and activates landside nia bins
'—Rossitte tavel downslope which Impacts other davalagment down Se stan ASS (2009) Appencis J

114 Australian Geomechanics Vol 42 No 1 March 2007