Local stability of underground powerhouse cavern subject to low to moderate geo-stresses,
is frequently threatened by the unpredictable displacements of high sidewall in layered rock …

To realize the numerical analysis of rock bolt bearing-yield-fracture under tension-shear
coupling and to provide an effective means for supporting the design of roadways or tunnels …

Fully grouted bolts are a key component of the support system for underground openings.
Although considerable effort has been made in the simulation of the reinforcement effect of …

This paper presented a novel bond-slip model to better reveal the mechanical behavior of
the bolt-grout interface for fully-grouted rockbolts under tensile loads by considering the non …

The grout annulus (GA) has a significant effect on the tensile performance of rockbolts in
mining engineering. However, little research has been conducted to use modified cable …

This article presents the application of a self-excited acoustic SAS system for non-destructive
testing (NDT) for roof-bolt housings in laboratory and real mine conditions. The proposed …

Invert anomaly has become a typical problem of railway tunnels in stratified rock during
operations, which seriously affects the transportation capacity of railroad lines. This paper …

In roadways with high ground stress or burial depths, the joints distributed within rock
formations are subject to complex stresses and interlayer misalignments frequently. Rock …

Rockbolts are often subjected to loads during service, and the load transfer behaviour of
rockbolts is very important. Therefore, in this study, pullout tests were performed on two …

In high-voltage cables, because of the close fit of their internal structures, interface pressure
is generated between conductor and insulator, which affects the performance of the cable …