Understanding the mechanical properties of rocks is crucial not only for academic research
but also for various industrial applications.[1],[2],[3],[4],[5],[6],[7] Many physical properties (eg …

Conical bits are very common in excavation of soft to medium rocks in a great deal of mining
and construction applications. Bit rotation allows the conical bits to maintain their tip shape …

Mechanical properties of rocks are a pivotal factor in geostructure construction, mining, and
rock engineering application because rock mechanical properties significantly influence …

Conical bits are very common in the excavation of soft to medium rock in many mining and
construction applications. These bits are claimed to rotate as they cut the rock, allowing for …

Frictional ignition in coal mining usually occurs when the cutting bits of a mining 18 machine
drill rocks. This is one mechanism that has been speculated to underlie the 19 phenomena …

The single‐cone bit has become the first choice for slim hole sidetracking and deep well
drilling with its unique rock breaking method and high ROP (rate of penetration). The single …

On the basis of structural features and working principle of polycrystalline diamond compact–
roller hybrid drill bit, a detachable experiment device with adjustable structural parameters …

Conical bits are widely used in various mining and civil construction operations. One of the
most distinctive benefits of the conical bits is the increased life time of the bit, which is …

The single-cone bit has become the first choice for slim hole sidetracking and deep well
drilling with its unique rock breaking method and high ROP (Rate Of Penetration), with its …

ABSTRACT A set of analytical solutions is presented to calculate the stresses and
displacements generated when two closely located circular tunnels are sequentially …