The Analysis of The Direct Foundation With Energy Foundations On The Basis of The Office Building “A4 Business Park” In Katowice At Francuska Street

Resources of geothermal energy range from the shallow ground to hot water and hot rock were found a few kilometres beneath the Earth’s surface, and down even deeper to the extremely high temperatures of molten rock called magma. The paper shows the analysis of the public building foundation with the usage of shallow geothermal system (closed loop systems using the vertical energy piles). In the soil and groundwater conditions the change of the way of public building foundation was suggested from direct (setting of pads, strip footings and foundation plate according to the basic project) into indirect one with the use of drilled piles in a casing pipe with the possibility of their cooperation with vertical ground collector. Calculations have been conducted in accordance with effectual standards. Both the quantity of energy piles in a single foundation pile coped with the foundation plate and the quantity of energy foundations in the whole building have been determined for the analysed building. Moreover, approximate heating power of the whole system has been calculated. An economical analysis of the proposed solution is presented in a summary.