Influence of Crushed Rock Properties on the Productivity of a Hydraulic Excavator

Among many factors that influence an excavator’s performance and productivity, the volume of bucket load duration excavator working cycle are crucial. In this paper, both were investigated, including granulometric composition excavated material. The material in was determined by photogrammetric analysis while time measured video recordings captured a digital camera during operation. Interconnections between angle repose, slewing angle, particle size distribution material, their effects on hydraulic productivity analyzed. It found larger number fine particles granular materials with higher coefficient uniformity resulted increase load. Correlation revealed significant interconnection fill factor swell factor. also calculation production rate according to ISO (International Organization for Standardization) standards more accurate repose CECE (Committee European Construction Equipment) standard appropriate lower angles repose.