Solid materials such as rocks can contain primary defects, and internal defects are activated in the event of mining disturbance, which causes rock damage destruction. Therefore, it is great significance for engineering to study mechanical properties failure mechanism damaged rock. In this study, prefabricated crack sandstone specimens were prepared with cyclic loading-unloading test, uniaxial ...

Electrochemical properties of various rock-shaped-CuO/graphite (G) composites and monoclinic structure CuO nanoparticles as the cathode versus a zinc plate as the anode in a 4M NaOH electrolyte were elucidated by electrochemical impedance spectroscopy (EIS) and chronopotentiometry (CP) in a two electrode configuration cell. Various values of G 9, 16 and 28 wt% were prepared and studied as catho...

Excavation and material stockpiling activities in the mining process cause a change distribution of forces stresses material. As result, will seek new equilibrium by releasing load through landslide. part mitigation, it is necessary to monitor displacements occurring on slopes using high-accuracy devices. Ground-based radar technique considered have good ability detect real-time. However, groun...

Analysis of advanced displacement in construction progress of tunnel excavation with weak surrounding rock is carried out by numerical method and comparison of model test result. In allusion to the problems of regional landslides and extruded large-deformation seriously impacting the stability of rock mass in construction process of large-section tunnel with weak surrounding rock, the elastic-p...

Various geological processes such as tectonic activities develop fractures and discontinuities in the rock mass body; these, in turn, form blocks with different shapes and sizes in the rock mass body. Accurate understanding of these blocks' geometry is essential in different domains of rock and mine engineering such as determination of yield in quarries, optimization of fragmentation energy, th...

The objective of this paper is to present a new rock mass classification system which can be appropriate for rock slope stability assessment. In this paper an evaluation model based on combining the Analytic Hierarchy Process (AHP) and the Fuzzy Delphi method (FDM)was presented for assessing slope rockmass quality estimates. This research treats the slope rockmass classification as a group deci...

Detailed geological, engineering geological and geotechnical assessment are prerequisites for any design works in underground excavation. Due to complex geology young Himalayan, it is mandatory. Any misjudgment support may results huge losses of cost time the project. This paper encompasses detailed analysis carried out examining rock mass properties optimum along a pressurized headrace tunnel ...

The rock masses in a construction site of underground cavern are generally not continuous, due to the presence of discontinuities, such as bedding, joints, faults, and fractures. The performance of an underground cavern is principally ruled by the mechanical behaviors of the discontinuities in the vicinity of the cavern. During underground excavation, many surrounding rock failures have close r...