Slope Stability AG-220616-RPT-G-01_[Rev A]

 

 

Sern sodteopet hans kao nd he maf
cases, it is internally visible cracking that should be the main focus
of attention, however there are a few examples of dwellings whose
external leaf of masoary preroens oto
be checked i there any dawbe. In any cate, externally vxble
is imp: asa guide to on the structure

and it should also be remembered chat the external walls must be
ling, themselves,

ity

* Corroded guttering or downpipes can spill water to ground.

. positively connected to a proper stormveater
Seach spun AL Oaser a coacenidnn or shal ws yal des
ilmenite Scant alpen chai

——

bu posed meee masonry walls is a cosmetic
‘sand ky mero ele he

below is a reproduction of AS 2870.

AS 2870 also publishes sal ee oes coe

Lyis abe thie be

Prevention/Cure

Plumbing

‘Where building mavement is caused by water service, luenbieeg,
pebenypapraen dant wo epee Auriga a
Ic is prudent, however, Serene

 

in the case of upheaval. It should be noted, however, that where the building where possible, Seefapepe. vd
ed buildings are Lay say rings ae 6 sale coset Ig il mde ater bai
of brickwork and ly walls are the 2 Bae opond an vanes ee
supporting structure for the bai Tn this case, the subth
masonry walls can be expected to as Full brickwork walls. = eee ay
situated directly under the thar are ii wo charge
went ere pera rbeTa A bilding fs the wath the ecole dat wie Set the tap suay ener dn barked
tonnah trench that houses the sewer piping, If the erench has been poorly
see ti ln ig sa Sapa ink ne Os eminel wal ine backfilled, the water will cher pond or flow along the bottom of
walls, depending on i ‘eam: tennbhes uneall footings
Gaines hupenln thoes s tenal ween thar the As these ro the me

| Water Service ond Drainage
‘Where a waver service pipe, a sewer or sormwater drainage isin
the vicinity of a building, a water leak can cause erosion, or

leakage and trench flows also encourage tree and shruby
Seen te nisearune caquams uaoeeneey a
roof result in volumes of |
Watheco nak ss 5 large rainwater being

9 cence ORES fom ine ene RS ee
paners blocked with

can be at a similar depth, it is not hard to see any water that is
thus directed into a trench ean casily affect the foundation's ability to
support footings or even gain entry to the subfloor area.

Ground drainage

In all soils there is the capacity for water to travel on the surface and
below it, Surface water flows can be esablished by inspection during.
and after heavy or produnged rain. If necessary, a grated drain syseem
Se Oa ete ee ee

y when

Sous igeolen Sar coring ke ciel soca Conlon coon

pape tee ee ner ‘This subject ix referred to in BTF 19
may properly be regarded as an area for an expert consultant.

Protection of the building ee

a a eo

shrubs and trees causes sone sacks wae cies sre pcblomst

For this reason, particularly where problems exist or are eo
icra: le tocnbeasendld tan Un spvoe Of patieg be locale aed

around as much of the building perimeter as necessary. This paving

 

 

 

 

 

 

 

 

 

CLASSIFICATION OF DAMAGE WITH REFERENCE TO WALLS
of and crack width
Description of typical damage and required repair naoniee Damage

Hairline cracks <0,1 mm o
Fine cracks which do not need repair <i mm 1
Cracks noticeable but easily filled. Doors and windows stick slightly <5 mm 2
enero ant Peary ene eee 5+15 mm (or a number of cracks 3
to be replaced. Lm 3 mm of more in one group)
Wearhenightness often:
Extensive work breaking-out and replacing sections of walls, 15-25 mm but also depend 4
setae ‘Window and door frames distort. Walls lean on number of cracks
or bulge noticeably, some lox of bearing in beams. Service pipes disrupted