(1) An underground garage was being dug on the south side, to a depth of 4.6 meters
(2) The excavated dirt was being piled up on the north side, to a height of 10 meters
(3) The building experienced uneven lateral pressure from south and north
(4) This resulted in a lateral pressure of 3,000 tonnes, which was greater than what the pilings could tolerate.
Thus the building toppled over in the southerly direction.
We have more pictures of this and a step by step of what went wrong, if you are interested in seeing more please email us.
Could you send me more pictures, please, best regards, Vadim Prodanov (construktion engineer, Austria)
Pleasse send me more pictures