Naslov
Improved method of excavation layered deposits in underground natural stone mine

Autori
Cotman, Ivan ; Vujec, Slavko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
Mining & Sustainable Development / Almasi, Ali ; Eftekhar Nezhad, Jamshid - Teheran : Geological Survey of Iran, National Geoscience Database of Iran, 2005, 637-643

Skup
20th World Mining Congress

Mjesto i datum
Teheran, Iran, 07.11.2005. - 11.11.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Dimensional stone; underground limestone exploitation; stone block; chain saw.

Sažetak
Dimensional stone quarrying is wide spread mining activities generally developed as open pit quarries. In last few decades dimensional stone quarries are developing the underground system of exploitation by using new developed mining machines. Specific demands in stone block production, environment demands for nature protection and underground mine activities, are the basic points for creating special “ rules” for executing these activities respecting the mine workings safe and profitable. Underground exploitation of thin and shallow layered limestone quarry must respect the schedule of microtectonic discontinuities, and applying technology of exploitation with modern underground chain saws, can make these activities profitable. With regular following the schedule of discontinuity and respect of room and pillar geometry, excavation can be created using the “ design as you go” system of exploitation. Basic elements of room and pillar geometry can be improved by “ in situ” determination of rock tensile strength, and with the combination of adequate following the relative deformations and strain. Underground exploitation of thin layered limestone is under develop in “ Kanfanar” quarry in Croatia.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA