Study on mechanical characteristics of rock type I fracture and anchorage strengthening mechanism

Instability mechanism and anchoring control technology of expansive weakly cemented soft rock roadway

“…Sharma et al (2010) confirmed that the failure mode of weakly cemented sandstone during water softening is mainly due to detachment of cementitious materials. Weakly cemented soft rock has properties of low strength, poor cementation, and easy mudding in contact with water (Wang et al, 2020;Zhang et al, 2022b;Li et al, 2018). The RQD (Rock Quality Designation) and uniaxial compressive strength of weakly cemented soft rock are smaller than the common soft rock indicators in the eastern mines in the past (Zhang et al, 2022c).…”