Monday, August 23, 2010

Digging a basement under my house sounds risky.....is there any advice centre who could help?

Fred West?Digging a basement under my house sounds risky.....is there any advice centre who could help?
Call a professional house mover to come and jack the house up.they have all the right equipment and it will be alot easier for the digging and pouring of concreteDigging a basement under my house sounds risky.....is there any advice centre who could help?
yes, it does sound risky if ur talking about digging under ur existing house. their is a high chance of ur house collapsing unless u drive pillar foundations along the perimeter of the building below the depth of the proposed basement. even at that it would be risky and costly.





if there is space at the front or preferbly the rear of ur house, u could dig a basement in that ground and lead it up to the house and then cover over with watever was originally there eg. landscaped garden but not large trees.





it would be a lot cheaper and is wat i would do
Check out www.npda.co.uk.





Its the national property developers association so I'm sure someone there will be able to advise you.





You can become a member (for free) and ask in the forum.





Hope this helps
have a look at a song ';the miners dream of home';


try the NCB
The Builder's Association in London, they have an information office.
i would ask a builder mate
You need a structural engineer and a specialist underpinning company.





To start to dig a basement without specialist advice is crazy.





The foundations of your house may only be 750mm below ground level. A foundation relies on a ne effective bearing caparity of your sub-soil beneath it imagine a huge bulb like pressure beneath your foundation spreading out at 45 degrees. As you dig out you are effectively halving the bearing capacity of the soil, all manner of problems occur, your excavation can collapse at any moment effectively demolishing your house, you can hit running sand ( a layer of sand saturated with water it's stable whilst contained but as soon as you release the pressure you can turn that sand layer into an unstoppable stream destabilising large areas, the only cure is to literally pump tonnes of concrete into the ground.





1. it's quite a bad idea, try and think of a better way to extend your house.





2. if you must do it, get a structural engineer to ascertain your sub soil make up.





3. employ a specialist under pinning company.





4. cross your fingers and prepare to write some large cheques especially if it goes wrong.








Good Luck!!

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