Iron Foundations

A íicvv x.i.y oí constrccting a solid founüuticu ícr u lulJ LaiJuiiig has been tried siin Buccesd in Berlín. It was necessary to find a soJid base snffloiently strong to curry a building weighiug more th;n 10,000 tons. The plot of ground npou whidh the building was to stand was aöjoiiied on both sides byhigh buildings, wbich reudered uusafe the digging to any depth for i foundation. The only way out oí the difficulty was the sinking oí u caisson in the cnuter of the plot, upon thcceinentcd top of whiüfa a hollow fórm of (U inent was built. Into Ihis form mollen iron was poured, filling up the splice, and upon thia cast iron founaatïon piate the uuderstructure of the building i:ow reats, while the side walls are supporied by a cantalever structure. The ir.ll weight of the load upon the cast iron foundation is estimated at moie Uiuu 20,000