This paper presents an investigation of fracture evolution of surrounding rock with different
supporting conditions during excavation period in Hulusu coal mine, Inner Mongolia, China …

To investigate the interaction of the bolt-reinforced rock and the surface support, an
analytical model of the convergence-confinement type is proposed, considering the …

Conventional borehole pressure relief technologies cannot consider roadway anchorage
support and pressure relief simultaneously, which is a disadvantage in that the integrity of …

Compared with rock roof roadways, coal roof roadways are more sensitive to changes in the
stress field due to excavation and mining. For thick-coal-roof roadways, the roof damage …

Traditional intensive drilling (or grooving) technology in a roadway destroys the rock mass
and supporting structure in the shallow anchoring area while implementing pressure relief …

Most retreating roadways in extra-thick coal seams, are affected by multiple mining activities
under fully-mechanized top caving mining conditions. Surrounding rock deformation and …

Anchor cables (bolts) act as the main support system and play an important role in improving
the rock burst resistance and stability of the roadway surrounding the rock. In this study, the …

In deep coal mining, complex stress and mining conditions often cause large deformation
and roof falling of roadway, which seriously threatens the production safety of coal mines …

To investigate the influence of bolt pre-tightening force and hole-bolt spacing on the
mechanical responses and failure characteristics of rock-like materials with hole-bolt …

The overall safety of anchorage engineering is jeopardized by the corrosion failure of low-
carbon steel anchor bolts in a complicated geotechnical environment. To research the …