Looong wall below ground, how to do ?

[Knabbjolf]

I have the idea that I want to dig a long garage underground next to the existing basement. The outer wall will be about 12m long and if I build it with leca, the soil from outside might push it in or can leca be reinforced that much? How to do it, cast? how thick should the wall be and what reinforcement? Other methods? Grateful for all tips and suggestions.

 

[Bagarn79]

Hello

I have built a garage measuring 8.6*9 and 3.2 high, with only 2 sides below ground, reinforcement in each shift, and on one side there will be a wall in the middle as extra support, built with 25cm leca.
I think you should hire a constructor to calculate your specific project so that it doesn't go wrong.
I paid about 20,000:- for a constructor, and then you'll have insurance that covers if something happens.