A CAREFUL BLASTING TECHNIQUE DURING CONSTRUCTION UNDERGROUND OPENINGS FOR NUCLEAR WASTE REPOSITORY
Zvonimir Ester, Darko Vrkljan · 1998
Underground nuclear waste repository are constructed in natural rock formation, with heterogeneous compaud and structure, what needs accomodate way of desing and construction according to rock conditions. The quallity insurence of underground repository, during and after construction, is most demanding in view of conture and category of escavation. The tehnology ofdrilling and blasting, regarding the mechanical exavation, is accommodate in sense of response to cross section magnitude of underground openings, the rock conditions and category, the support performance and others desing demands. Disadvantageous are in high level rock damage around underground openings, what is in oposition reaching quallity insurence. Conventional construction technology can be successful by implementation of controlled blasting technique avoiding extensive rock weakness.