One of the first preparatory works before the reconstruction and completion of the science library in České Budějovice was the transfer of more than a hundred-ton boulder which had its place in front of the library building for 45 years. However, it hindered the planning of the aforementioned library extension and was moved about 23 meters away. The transfer took place on Friday, May 3, and lasted about 15 minutes. You can see the shots of the transfer in the links in the article.
We moved the boulder together with APB PLZEŇ. A 500-tonne crane took care of it. The preparation for the crane setup took about 6 hours and a weight of 160 tons was added to a crane weighing 96 tons. When moving the boulder, the height of the arm lift was 5 meters above ground. The boulder was moved about twenty-three meters closer to the Gerbera Cultural House where it was mounted on a new concrete foundation and anchored with steel profiles. Textile coatings were used for the transfer; the inside the coatings are made of wound nylon fibres. The total load capacity of the coatings was 360 tons which is more than three times the weight of the boulder.
The boulder, weighing 102 tons, comes from the Novohradské Mountains and has been in its place since 1974 as part of a natural monument in front of the then Museum of Workers’ Revolutionary Movement of South Bohemia which used to have its seat in the present library.
You can find the records of the transfer here.
You can see the transfer reportage including the historical footage here.