Computational Analysis of the Resistance to Mining Influences the Small Sports Hall Built On the Stiff Foundation Case

Abstract

In the paper the influences of mining area deformations are analyzed, mainly curves of the area, for deformations of the steel construction of one sports hall. There is described the small sports hall which is built some year ago in one of Silesian cities on areas on which the active coal mining is being conducted. The new sports hall was not correctly protected to mining influences, in spite of applying the huge and expensive spatial foundation box and solutions adapting steel structures to the forecasted deformations of the area. Typical solution for mining protection applied straight out for redoubling damage. In this object appeared large displacements of steel construction elements, the irregular cracks of walls in highest zones and in the area of windows, as well as deformations of the floor making it difficult for the hall the normal use. In the paper is described the effect of application “theoretically correct” technical solutions, but not-correlated behind oneself in the mining prevention. The special attention is paid to applied structural solutions of the reinforced concrete foundation box, the spatial stiffness of the steel construction and improper materials used in construction of walls. This article contains results of extensive analyses of the FEM, theoretical deliberations and photographic documentation of damage for a real municipal sports hall. In the paper is given the method of repair of the hall and protection to further mining influences. It is pointed out that the adapted repair procedure could not interfere in functional and architectural advantages of the hall.