Rock breaking using conical picks is a complex process affected by several factors; its
performance is directly related to the excavation rate of rock tunnels, which is important in …

High geostress is a prominent condition in deep excavations and affects the cuttability of
deep hard rock. This study aims to determine the influence of confining stress on hard rock …

For severe wear of a conical pick on tunneling and mining equipment, the influence of pick
cutting types, structure and working angle parameters on pick wear is studied using an …

In this paper, the results of a comprehensive study on failures of coal shearer picks in
Parvadeh coal mine in Iran has been carried out and the main mechanisms and causes for …

User's choices of conical picks currently involve specifying their material and geometric
parameters (functional requirements), incorporating the place and conditions of their work …

This study aims to determine the influences of confining stresses and cutting parameters on
hard rock fragmentation using a conical pick. Using a true triaxial testing apparatus …

Drum works on high impact and non-linear load condition, which easily results in wear and
failure. However, it is still an urgent problem to study the wear mechanism of drum and how …

The peak cutting force (PCF) estimation plays an important role in the design of cutting tools
for mining excavators. In most of the existing theoretical models for cutting force prediction …

This paper focuses on modelling and experimental investigation of cobalt-rich crust cutting
by deep sea mining vehicle in low confining pressure. The prediction accuracy of brittle …

A coal mine in the central district of Botswana is experiencing premature failure of conical
picks which mine 150–350 tons of coal/pick rather than 400 tons/pick specification. This has …