Slope Stability Report

PRACTICE NOTE GUIDELINES FOR LANDSLIDE RISK MANAGEMENT 2007

EXAMPLES OF GOOD HILLSIDE Pee

  
 
 
  
  
 
 
  
 
 
   
  
 
 

Surface water interception drainage

Watertgnt, adequately sited and founded
roof water storage tariks (with due regard for

impact of potertial Ieakage)
Pleadble structure

Roof water piped aff ate or aiored

Onsite Getention tanks, walertight at
adequately founded. Poteriial eakage
managed by sub-sol drains

Vegetation retained

\_ cutting and fing minimised in @evetopreent

\—Senege effuent Pumped cut of connected to sewer,
Tanks adequately founded and watertight. Potential
leqieage managed by suh-sell drains

~.)
~——— Engingered retaining walls with both surface and

subsurface drainage (constructed before dwelling) ass e006)

EXAMPLES OF POOR HILLSIDE PRACTICE

Unetabtised rock toppies
8nd Gavel doensiops

Vegatatien removed ——,

Discherges of rootwater soak Btosp unsupported \ é
} '

       

 

meay rafter than conducted off cut falls
ule or to secure storage for re-use

‘Structure unable to tolerate i
rattierrent and cracks a

Poorly compacted fil cotties rs >
unewerly and cracks pool yk inn

 
 
 
 
 
  
 
 
  
  
  

We support fil

Loose, saturated fi sides rf
and possibly flows downshap= ;

Inecioquetoly supported cut tals

inadequate walling unatle 4 y
?
é
/

Seerabed

Dwelling net founded in bedeoch

y ————Ansance of subeod drainage wthin 4H
“—— Ponded water enters slope and activates landside © eG 2000)

Possible tavel downslope which impacts othar devekanensnt dawnt ‘Seow stan AGS (2009) Appeneix J

114 Australian Geomechanics Vol 42 No 1 March 2007