Range of Seismological Investigations Required for Evaluation of Surface Construction Behaviour

摘要

Characteristics of surface vibrations induced by mining in the Upper Silesian Coalfield and Legnica-Glog6w Copperfield and vibrations excited by quarry explosions are described. Seismological investigations are discussed in terms of their usefullness for the assessment of possible harmfulness to designed or existing constructions on the surface in areas subject to vibrations. The necessity of co-operation between geophysicists and building engineers is pointed out. To make an analysis of the effect of vibrations on buildings, one has to know the entire records of all components of vibration, the horizontal ones being the most important. An approximate but sufficiently accurate evaluation of the effects of mining tremors on buildings may be obtained with the use of response spectra. Exemplary response spectra are given.