Influence of Vibration and Ground Deformation on Historic Structures

preserve and protect these structures. The presented paper deals with
some issues of the unfavourable impact of industrial activity on some
historic structures. Long-term influences from the industrial activity
are one of the common sources of damage observed in these
structures. Due to the size and volume of such structures, they are
characterized by very low resistance to vibration and ground
deformations. At the same time, the high cultural and material value
of historic structures necessitates their costly protection and repair.
Knowing the origin of problems, one may take proper actions to
protect them. This paper discusses two important types of impact
typical for industrial areas, especially affected by mining, seismically
induced vibrations and continuous ground deformations from
underground extraction. The presented discussion is based on the
case study examples of historical sites located in some industrial
areas in the Czech Republic and Poland. They point to different
sources of damage to those structures that may arise as well as a
combined effect of mining-induced seismic events and land
subsidence. The medieval Jeroným Mine represents an underground
structure loaded with natural and technical seismicity. The paper also
includes a short overview of the process of seismic loading
evaluation and basic information about historic structures with
respect to seismic standards and land surface subsidence caused by
underground mining.