Lately, the builder’s crews were improving foundations of the existing building using a jet grouting technique. It is a process of producing a soil-cement material thanks to grout delivered under very high pressure to break up and loosen the ground, and mix it with a thin slurry.
However, a damage of load-bearing walls of this 138-year-old building had exposed during the works and it was necessary to stop improving the foundations until the walls are reinforced. Then, the jet grouting will be revived. A conclusion of construction works is planned for mid-2012.
The usable surface of the existing building (3 186 sq. m.) shall be increased to reach the total surface of 5 252 sq. meters. After the extension, the Silesian Philharmonic will offer a new grand concert hall, new chamber music hall for 110 seats, conference hall for 40 people, musical café with a Green Garden with 82 seats, elevators, architectural barriers for the disabled will be removed.
A total value of the project is PLN 31,47 million.