Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Application of the SAP2000 computer programme in the modelling of an underground quarry of dimension stone. |
| Alternate Title: |
Primjena računalnoga programa SAP2000 u modeliranju podzemnoga kamenoloma arhitektonsko-građevnoga kamena. |
| Συγγραφείς: |
Mališ, Tanja1 tanja.malis@rgn.unizg.hr, Hrženjak, Petar1, Lazarević, Antonia Jaguljnjak1, Mikulec, Mislav2 |
| Πηγή: |
Rudarsko-Geološko-Naftni Zbornik. 2023, Vol. 38 Issue 4, p19-25. 7p. |
| Θεματικοί όροι: |
Building stones, Quarries & quarrying, Computer programming, Civil engineering, Mining engineering, Finite element method, Stress concentration |
| Abstract (English): |
A numerical analysis of part of the underground quarry of dimension stone with designed maximum dimensions of the rooms was carried out with the SAP2000 software based on the finite element method. The main objective of the analysis was to examine the preliminary stability and the influence of excavation on the redistribution of stresses in the surrounding rock masses, thus confirming the applicability of the tributary area method. The analytical solution with the tributary area method showed satisfactory agreement with the numerical calculations, and the results of the analytical calculations were on the safe side. The obtained results confirmed the predicted behaviour of the rock mass, which confirms the use of SAP2000 as a general-purpose software for civil engineering in the field of mining. The highest concentrations of stresses and strains are found in the edge areas of the pillars, so their correct design is crucial. The safety factor of the point with the highest stresses was determined and a value of 2.21 was obtained, thus fulfilling the stability condition. As for the influence on the surrounding area, stress changes of less than 10% were determined based on the solutions for the vertical stresses at a distance of 20 m from the underground excavation. [ABSTRACT FROM AUTHOR] |
| Abstract (Croatian): |
Numerička analiza dijela podzemnoga kamenoloma arhitektonsko-građevnoga kamena s projektiranim maksimalnim dimenzijama podzemnih prostorija provedena je pomoću softvera SAP2000, temeljenoga na metodi konačnih elemenata. Glavni cilj analize bio je ispitati stanje stabilnosti i utjecaj na preraspodjelu naprezanja u okolnim stijenskim masama i time potvrditi primjenu teorije tributary area. Analitičkom primjenom teorije tributary area dokazano je zadovoljavajuće slaganje s numeričkim proračunom, pri čemu su rezultati dobiveni analitičkim proračunom na strani sigurnosti. Dobiveni rezultati potvrdili su predviđeno ponašanje stijenske mase, što potvrđuje primjenu SAP2000 softvera u području rudarstva, iako se radi o softveru s uobičajenom primjenom u području građevinarstva. Najveće koncentracije naprezanja i deformacija nalaze se u rubnim dijelovima stupova, stoga je njihovo pravilno projektiranje ključno. Određen je faktor sigurnosti točke s najvećim naprezanjima i dobivena je vrijednost od 2,21, čime je zadovoljen uvjet stabilnosti. Što se tiče utjecaja na okolno područje, na temelju dobivenih vertikalnih naprezanja na udaljenosti od 20 m od podzemnoga iskopa utvrđene su promjene naprezanja manje od 10 %. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: |
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