Stress conditions around deep underground mine openings can significantly influence rock
fragmentation and stability, and thus the cuttability of the targeted rock. In this study, rock …

Rock macro-indentation plays a fundamental role in mechanical rock breaking for various
rock engineering application, such as drilling, tunneling, cutting, and sawing. Over the past …

The rock indentation tests by a conical pick were conducted to investigate the rock cuttability
correlated to confining stress conditions and rock strength. Based on the test results, the …

High excavation-induced stress concentration and strong mining/tunneling disturbance are
prominent conditions in deep excavations, and often present a coupled process to induce …

During automatic and intelligent cutting at the coal mining face, complex geological
conditions (fold structure, fault structure and magmatic intrusion) easily cause distinct …

Stress conditions and preflaws are prominent conditions influencing the cuttability of deep
hard rock. This study aims to investigate the cuttability of intact, prefractured, and drilled …

Stress conditions are critical in deep hard rock mining and significantly influence hard rock
cuttability. The peak cutting force (PCF), cutting work (CW), and specific energy (SE) can …

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 …

“采掘失衡” 是影响煤炭开采效率的主要原因, 通过回顾煤岩截割理论与截割机构的发展历程,
归纳了镐型截齿截割机理与截割滚筒研究现状与进展. 介绍了地质条件, 掘进装备 …