Geophysical Measurements in the Aspect of Recognition of Discontinuous Deformation Processes – A Case Study

Abstract

Article discusses one of the geophysical prospecting methods (Electrical Resistivity Survey – Method) used for solving environmental geoengineering problems. Studying bedding (rock mass) using non-invasive geophysical methods is beneficial particularly because of the ability to obtain complete and very accurate information, depending on adopted research and prospecting approach. Interpretation of geophysical data, should always include available geological, empirical and environmental information, while all results should be presented on integrated profiles and maps. The paper presents analysis of geophysical tests conducted in Triassic strata and assessment of their results, for purposes of an investment located in Tarnowskie Góry, on the post – ore mining area. Electrical resistance survey (ERS) demonstrated presence of numerous low – and high resistive anomalies located both in Triassic strata. ERS data, analysis of geological profiles, fill operations, post-completion ERS, and other observations, allowed evaluation of the ground surface safety in terms of mine subsidence appearance and formulation of recommendations for building designers. The purpose of the conducted geophysical research was to determine the occurrence and location of underground cavities in Triassic formations that could pose a threat of discontinuous deformations on the surface of the considered area.