Mining exploitation of hard coal is conducted in the Silesian region in Poland.As a result, the post-mining void is formed which leads to non-uniform lowering of the ground level.Consequently, thousands of buildings are vertically deflected.
This sten jacket m type of deflection causes troublesome use of buildings, underestimates their value, and in extreme situations leads to exceeded limit states.Therefore, such buildings are rectified by non-uniform elevations by means of jacks.On the basis of the analysed rectification processes, the method of determining the deflection of a building and the height of elevating its corners were presented depending on the type of building.
This paper is a review of methods of determining the deflection of buildings korpskaft having different sizes: single-storey buildings, single-storey buildings with a usable attic, two-storey buildings, and 11-storey buildings.Moreover, specific situations were analysed, in which the elevation height was determined by a range of additional works performed during rectification.This review was used to develop guidelines for determining deflection values and specifying the height of non-uniform elevation of corners.