The initial phase of our basement underpinning

[whitbyjet65]

You have to be careful. There may be a monster living in one of those holes. I like butter, bricks, August, handles, people called Graham, jam, moths & chimpanzees fingers.

[bwechner]

I finished my project successfully. A wall that was undermined is now underpinned and has been in service for months without any issues arising. No dramas in the end. Thanks for the video. Inspiring.

[dekonfrost7]

i think in a situation like this, hard pan cylindricle piers, under modern concrete in excellet condition, with a poured wall second phase would be ok and relatively easy for a bright diy'er with some experiece.. but across the board i wouldn't recomend it. this is without a doubt the hardest and most difficult work there is and a 1000 things can go wrong..and without specialized tooling and experience and other tradesmen and huge labor pool and lots of cash, this job coud sink ya

[alanfromdarwen]

can i ask is underpinning something a competent diyer could do.. many thanks.

[maa48]

@alanfromdarwen Well depending on the depth... i guess the concrete pour can be done by a a DIY. But everything else involves a lot of engineering calculations such as:

1. Underpinning- What size and how deep will be the underpinning (you're going to need a geotechnical engineer to asses the bearing capacity of the soil)

2. Shoring- Location, size of wood members, influence line caused by the load

2. Excavation- Need to create proper approach pit with lagging timbers depending on soil type

[bwechner]

Nice. I'm doing similar and was looking on-line to get some ideas. Keep us posted ... I may be done before then mind you ;-). We'll see.

[tayo118]

thx for posting