Naslov
ApplicatiOn of Contact surface modelling for digging force determination

Autori
Avdić, Mevludin ; Kožar, Ivica ; Moranjkić, Idriz

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

Izvornik
Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst / Vrklja, , Ivan - Amsterdam : A.A. Balkema Publishers, 2009, 601-604

ISBN
978-0-415-80481-3

Skup
ISRM Regional Symposium-EUROCK 2009

Mjesto i datum
Cavtat, Hrvatska, 29.10.2009. - 31.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
hydraulic excavator; digging force; contact surfaces; finite elements method

Sažetak
Selection of class and type of the hydraulic bucket excavator as a basic machine for digging and loading at open pit mines, up to now was mainly considered from a point of view of technological parameters. In practice that resulted in achieving smaller mining capacities caused by nonconformity of digging force which is in function of the geology and geomechanical characteristics of the rock mass. During the bucket excavator operation in mining of coal, marl, and limestone, the biggest consumption of energy appears at penetration of cutting organ into the rock. This paper presents possibilities of application of the finite elements method through modelling of the contact condition for determination of the penetration force. Calculation results were compared with the results of the in situ measurements at open pit on one of excavator’s cutting organs.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA