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The Leaning Tower of Pisa, a UNESCO World Heritage Site, is located in the famous Piazza del Duomo (which has been registered as a World Heritage site since 1987) and is the bell tower of the Cathedral of Santa Maria Assunta. The tower houses seven bells.<\/p>\n\n\n\n
So, why is the Leaning Tower of Pisa tilted? The answer lies in the problems with the foundation of the land where it was built.<\/p>\n\n\n\n
Construction began in 1173, but long before that, the area was a marshland close to the sea, making the ground very soft. The foundation of the tower was only about 3 meters deep. This depth was insufficient to support the weight of the tower, as it was difficult to dig deeper foundations with the technology available at the time. The builders noticed the tilt early on and temporarily halted the construction. However, about 100 years later, work resumed. To counter the tilt that had started during construction, the upper part of the tower was slightly curved in the opposite direction of the lean. This adjustment improved the tower’s balance and stability. Over the years, the tilt caused the ground beneath the tower to compress, increasing its strength. Additionally, large-scale reinforcement works carried out from the late 20th century into the early 21st century dramatically improved the stability of the tower. Various methods were used, including digging the ground on the north side and installing lead weights to halt the progress of the tilt.<\/p>\n\n\n\n
Thank you for reading. <\/p>\n\n\n\n
\u65b0\u6f5f\u30a8\u30ea\u30a2M.L<\/p>\n\n\n\n
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