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Closed to the Public in 1990, the Tower of Pisa Was Straightened by 44 Cm in Eleven Years: What Saved Its 14,500 Tons Was neither Concrete nor Cylinders
Between 1990 and 2001, engineers removed only 70 tons of soil under the north flank of the Pisa tower to straighten it by 44 centimetres. This sub-explosion technique saved the 14,500 tons monument from the tipping, without using concrete or hydraulic cylinders. More
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Between 1990 and 2001, engineers removed only 70 tons of soil under the north flank of the Pisa tower to straighten it by 44 centimetres. This sub-explosion technique saved the 14,500 tons monument from the tipping, without using concrete or hydraulic cylinders. More