YU84191A

YU84191A - TECHNOLOGICAL PROCEDURE FOR ORE EXCAVATION OF BLOCK-RELEASED DAMAGE WITH MAGAZINATION OF ORE IN THE CONCRETE ENVIRONMENT

Info

Publication number: YU84191A
Application number: YU84191A
Authority: YU
Inventors: R. Kojdić
Original assignee: Rtb Bor, Institut Za Bakar - Bor
Priority date: 1991-05-14
Filing date: 1991-05-14
Publication date: 1996-10-09
Also published as: YU48174B

Abstract

TEHNOLOŠKI POSTUPAK ZA OTKOPAVANJE RUDE BLOKOVSKO-PODETAŽNIM ZARUŠAVANJEM SA MAGAZINIRANJEM RUDE U STEŠNJENOJ SREDINI. Da bi se sprečila maksimalna koncentracija pritiska pri otkopavanju na velikim dubinama ovim tehnološkim postupkom otkopavanja rasterećuje se stenski masiv, povećava se iskorišćenje rudne supstance i ukupna ekonomičnost otkopavanja rude formiranjem originalne konstruktivne jedinice od minimalno tri otkopna bloka unutar kojih se grade etažni hodnici (1), hodnici bušenja (2), hodnici utovara (3) i buše lepeze (4, 5) koje se aktiviraju u pojasevima od po četiri istovremeno. Dužina sektora za miniranje za sva tri otkopna bloka iznosi 12 m. U otkopnom bloku s čeonim utovarom taj interval postiže iz dva miniranja od po 6 m, dok otkopavanje rude u bloku sa bočnim utovarom napreduje ispred otkopavanja u bloku sa čeonim utovarom za 6 m.Pre miniranja sledećeg sektora u otkopima sa bočnim utovarom rude, količina od 15-20% od minirane rude se istoči da bi se obezbedila rastresitost i uslovi za stešnjenu sredinu za naredno rniniranje. Zavrsetkom miniranja rude po sektorima u sva tri otkopna bloka vrši se utovar rude izuzev samog početka otkopavanja kada se najpre vrši utovar rude u blokovima sa boćnim utovatrom, a potom u bloku sa Čeonim utovarom rude.Radi boljeg iskorišćenja rude elipsoidi točenja treba da se presecaju.TECHNOLOGICAL PROCEDURE FOR ORE EXCAVATION OF BLOCK-RELEASED POLLUTION WITH MAGAZINATION OF THE ORE IN THE COMPRESSED ENVIRONMENT. In order to prevent the maximum concentration of pressure at high-depth excavation, this rock excavation process relieves the rock mass, increases the utilization of the ore substance and the overall economy of the ore excavation by forming an original structural unit of at least three excavation blocks within which the storey corridors are constructed (1). drill corridors (2), loading aisles (3) and auger bushings (4, 5) that are activated in belts of four at a time. The length of the mining sector for all three excavation units is 12 m. In the front loading mine, this interval is reached by two mines of 6 m each, while the ore excavation in the side loading unit advances before the excavation in the front loading block by 6 m. Before the next sector is mined in the side ore excavations, the amount of 15-20% of the mined ore is drained to provide distraction and conditions for a tightened environment for subsequent mining. The completion of ore mining by sectors in all three digging units is done by loading the ore, except at the beginning of the digging, when the ore is first loaded in the side loading blocks and then in the block with the front loading of the ore.