Open AccessMethodology for extrapolation of rock mass deformability parameters in tunneling
Author(s) -
Zlatko Zafirovski,
Igor Peševski,
Jovan Br. Papić
Publication year - 2012
Publication title -
facta universitatis. series: architecture and civil engineering
Language(s) - English
Resource type - Journals
eISSN - 2406-0860
pISSN - 0354-4605
DOI - 10.2298/fuace1203235z
Subject(s) - extrapolation , rock mass classification , dilatometer , geology , massif , quantum tunnelling , geotechnical engineering , field (mathematics) , basis (linear algebra) , materials science , mathematics , thermal expansion , geometry , mathematical analysis , geochemistry , optoelectronics , pure mathematics , metallurgy
This article proposes one approach for extrapolation of necessary parameters for numerical analyses in tunnelling. The approach is named as an empirical - statical - dynamical method for extrapolation. The proposed methodology is based on combination of empirical classification rock mass methods, geophysical measurements and direct dilatometer deformability testing on a field. The analyses are prepared for purposes of investigation and design for several tunnels in Republic of Macedonia. One example for dividing of tunnel length in quasi-homogenous zones, as a basis for forming of geotechnical and numerical model that can be a basis for interaction analyses of rock - structures system and stress-strain behaviour of rock massif, is also given. The several original regressive models between rock mass quality, deformability and velocity of longitudinal seismic waves are shown