OBJECTIVE A shovel with a blade perforated with small holes was tested to see whether a worker would use less whole-body energy to dig wet clay than with a shovel with an opaque blade. BACKGROUND A perforated shovel is hypothesized to require less whole-body energy on the basis of adhesion theory; a smaller surface area would require less physical effort to dig and release soil from the blade...

In-pit crushing and conveying (IPCC) systems have drawn attention to the modern mining industry due numerous benefits than conventional truck-and-shovel systems. However, implementation of IPCC system can reduce flexibility introduce additional sequence requirements. This paper investigates long-term production scheduling crusher relocation plan open-pit mines using a semi-mobile high-angle con...

Most engineering artifacts behave in a continuous fashion, and this property is generally believed to underlie their dependability. In contrast, software systems do not have continuous behavior, which is taken to be an underlying cause of their undependability. The theory of software reliability has been questioned because technically the sampling on which it is based applies only to continuous...

Since the premium prices of yard trucks and significantly daily volatility of containers serving demand, it is an uneconomic method to keep a full team of fleet to cover the entire service. Some of the transportation services are outsourced to other external companies. The strategy of outsourcing yard trucks is a decision making problem that container terminals are currently facing. Yard truck ...

Erdenet copper-molybdenum deposit is the biggest one in world and has a significant impact on Mongolian society economy. Today LIEBHERR-994B hydraulic shovels from Germany, electric including EKG-10 EKG-15 Russia operate for mining works, dump truck BelAZ - 75130 used transportation. The causes of shovel downtime are classified as technical, technological, organizational. During study period, 4...

Truck-Shovel (TS) systems are the most common mining system currently used in large surface mines. They offer high productivity combined with flexibility to be rapidly relocated and adjust load/haul capacity capital expenditure according market conditions. As world moves decarbonise as part of transition net zero emission targets, it is relevant examine options for decarbonising haulage In-Pit ...

A significant proportion of worker fatalities within Australia result from truck-related incidents. Truck drivers face a number of health and safety concerns. Safety culture, viewed here as the beliefs, attitudes and values shared by an organisation's workers, which interact with their surrounding context to influence behaviour, may provide a valuable lens for exploring safety-related behaviour...