Selected test methods for pipes and manholes used in mining areas

Abstract

As a result of underground deposit extraction, the pipes and manholes that constitute the basic elements of sewage systems are subjected to the influence of near-surface soil layer deformations at the place of their installation. For this reason, these elements intended for the construction of sewage systems in mining areas must fulfil special requirements related to the occurrence of additional loads and displacements. This article presents the pipe and manhole test methods developed at the Central Mining Institute, with a particular focus on elements of large sizes. The results of these tests are applied to assess the suitability of pipes and manholes for use in mining areas.