The world's biggest coal silos, with a total storage capacity of 100,000 tons of coal, are now being built for Maizuru Power Plant on Ohurapeninsula, Maizuru, Kyoto. This power plant is owned by The Kansai Electric Power Co., Inc. Prestressed concrete structure was adapted to withstand pressure by stored coal. Dynamic analyses considering interaction between the coal and the prestresed concrete silo were carried out as part of the seismic design. A new construction system called the "slip-up system", was developed as part of the project. This system uses an auto-climbing roof framing structure mounted on the slip form system. It reduces the amount of temporary support required, the cost and the construction time.
