Study of the Propagation Rules of Stress Wave in Bedding Rock Slope

Abstract

After analyzing the propagation of stress wave at different angles of inclination, strength parameters and the group number of structural plane. The results of research are summarized as follows: Due to the change of propagation direction in structural planes with different angles of inclination, the original propagation rule of stress wave changes too, the peak velocity of the monitory point gets relatively flat as the strength parameters of structural plane turn greater. Stress wave repeatedly refracts and reflects in many groups of structural plane, then the appropriate dynamic characteristics of the wave no longer maintains as the number of group increases or decreases. By analyzing and verifying the slope instance, the test result provides a reference for studying dynamic response rules.

Calculation and optimization of slope reinforcement at tunnel entrances—taking manyanpo tunnel as an example

“…The test conditions were optimized, and the optimal value scheme of each anchor cable support parameter was obtained. Wang et al (2014) proposed the method of pre-support and layer-by-layer excavation in a reserved excavation area. Accordingly, the optimal horizontal angle of anchor cable pre-support under different angles between rock strike and slope strike was evaluated, the support calculation model considering the angle of strike was established, and the corresponding relationship was derived.…”