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In case you don't know how it happened:
(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 tons, which was greater than the pilings could tolerate. Thus the building toppled over in the southerly direction.
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