Rock excavation technologies with measurement and standardization of work

Ciljevi ovog rada su objasniti i usporediti mjerni, praktični i teorijski učinak strojeva za zemljane radove. Za podatke o mjernom učinku bilo je potrebno provesti istraživanja na terenu, što je napravljeno na gradilištu KBC Sušak. U radu se spominje vrsta radova koja se obavljala prilikom terenskog istraživanja te se opisuju građevinski strojevi za zemljane radove. Također, opisuje se metoda kronometraže koja se koristila prilikom snimanja vremena rada građevinskih strojeva. Podaci zabilježeni pomoću spomenute metode snimanja vremena objedinjeni su u tablice te analizirani. Nadalje, dani su primjeri postepeno objašnjenih zadataka teorijskog i praktičnog učinka, zadaci su računati prema stvarnim uvjetima gradilišta na kojem su se vršila istraživanja. Zaključilo se nepodudaranje uspoređenih učinaka strojeva za zemljane radove.Goals of this project is both to explain and compare the mensural, practical and theoretical efficiency of the earthwork machines. To ensure data, it was necessary to provide an in situ research, which had been done at the KBC Sušak Rijeka construction site. This paper deals with the type of work done in situ research and describes used earthwork machines in detail. It also describes chronometry method which was used to annalyze the efficiency of machines, also described and explaned for its use. Data recorded by the said time recording method are aggregated into tables and analyzed. Furthermore, in order to annalyze a given set of problems that occur, examples gradually explained tasks of theorctical and practical efficiency, the tasks were calculated according to the actual conditions of the construction site on which research was conducted. Given all this information and research it is apparent the incompatibility of the compare efficienty of machinery for the earthork