QUOTE(stevie8 @ Nov 17 2013, 01:53 AM)
When your house is at hill cut area, the area has to be left 10 yrs to subside and pilling needed. Usually you can see your next neighbors are you next to one that is lower than yours and how high is yours? Or the back of your house is hill or the front of your house is higher? Then you can guess if pilling is required or not. Pile only for the column. Footing no need to pile.
Like I said dig the existing footing where you want to extend and follow accordingly.
One other way for column is to dig deep and wide till you hit hard ground, concrete cement, sand and stones are cheap, after all you need only 2 or 4 column max.
huah...wat type of renovation is thisss.. piling also need. 1 batangs alrady 1-2k not included machinery..
QUOTE(stevie8 @ Nov 17 2013, 06:40 PM)
This is extract from this website
http://civil-engg-world.blogspot.com/2013/...ONAS-Tower.html"....The geotechnical survey discovered that the actual construction site was situated partially over decayed limestone deposition and rest over soft rock. After discovering this, the structure was relocated to avoid limestone deposition. The whole foundation was rested on 104 piles. To reach safe bed rock the piles were extended to depth ranging from (200-374) feet. To reach this depth, PETRONAS Tower became the structure having the deepest seated foundation of the world....."
So, having your house extension do you think you should do a extended study like our twin tower??? Small issue going beyond what is necessary. The answer my fren is you dont even for building a housing estate with landed houses and apartment blocks.
Do you see people extending thier house bring along load of concrete to test the foundation? You dont, ok! It costs you a bomb or the whole renovation cost by doing so!
I just wonder what the engineer will do and what test he will conduct and by the way you got a house? Your parents got. So you or your parents did any extension to the house and called an engineer to do it?
ini mia gnp geo company punya kerja.
haha...bc to TS, jus follow d contractor footing. although they noe nuts ab calculation n etc, but wat they hav is experience. they noe when shud put bigger footing n etc... jus make sure d depth is more or less same like exisitin. in industries, d depth varies from 3'-5'. of course bigger footin means better n also cost more...
QUOTE(aviecena2020 @ Nov 18 2013, 12:24 AM)
Wow..lot of information i got..thanks anyway
my house is new house(not subsale) and if not mistaken OC was released in Oct 2011. I guess original structural & architecture drawing,soil condition test,etc still at developer side.Not sure whether they willing to entertain me or not. I'm afraid they feel weird if i request it as if i wanna find some loop hole and sue them..haha. but no harm to request it i think.
Basically,I already discuss and request quotation from several contractors..haven't decide it as i wanna study about this foundation issue first...
Attached is some photos of my house.
1st picture is rear side.
2nd picture shot is from neighbour side. My house is at low side.
This is small hill area
dun gila. who r u to gib all those data...hahah.