Abstract
The article presents the influence of the selected factors, including mining tremors, described by the parameter PGVHmax on the failure rate of the water distribution pipelines. In created multiple regression models, the following independent variables were used: diameter and material from which the pipes were made, operation time without failure, the age of pipes, the value of pressure and PGVHmax. The values of PGVHmax in places with damaged water pipelines were determined by constructed the seismic wave propagation models. The analysis was carried out for a random sample of all water pipelines and extracted from this sample new groups: steel and gray cast iron pipes, their diameters, diameters and materials, and their construction time.
Highlights
Water supply systems are a key part of the technical infrastructure for the functioning of the economy and society
The pipelines are characterized by a varied dynamic response to additional loads resulting from the mining deformed area and surface vibrations induced by mining tremors
The analysis indicated that there is no negative impact of mining tremors on the motorway
Summary
Water supply systems are a key part of the technical infrastructure for the functioning of the economy and society. Water supply networks are characterized by various constructional and material solutions, connection methods, their age and technical condition are different For these reasons, the pipelines are characterized by a varied dynamic response to additional loads resulting from the mining deformed area and surface vibrations induced by mining tremors. Dependencies describing the impact of earthquakes with specific parameters on the damage intensity of water supply pipelines have been developed. Considering the significant differences between earthquakes and mining tremors, the implementation of dependencies developed for the earthquakes may be difficult and requires analysis This does not change the fact that rich studies on seismic waves can provide an excellent source of knowledge for analysis of the impact of mining tremors on underground, linear technical objects. The developed dependencies can be used to forecast damage to water supply network pipes in the analyzed region, under the influence of dynamic loads of mining operations
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