Research Status of Anchorage System Under Seismic Excitation

Under the action of earthquake excitation, the flexible bolt support system and the rigid sliding body are integrated into one, combining the rigid and flexible, coordinating the displacement and stress of the system, and actively resisting the earthquake and sliding. Based on the above advantages, anchored slope is widely used in high-intensity areas, and its dynamic stability has become a hot topic in the field of geotechnical engineering in recent years. The research on the anchoring slope under the action of earthquake excitation mainly focuses on four aspects: shallow dynamic effect research, dynamic response analysis of anchor solids, failure mode research of anchor solids, anti-seismic mechanism and design method of anchor solids. Relatively speaking, researches on the superficial dynamic effect and the dynamic response analysis of anchor solids have achieved more and more mature results, but most of them are limited to the analysis and research on single factors such as displacement, acceleration and stress, rather than the dynamic response process of the whole system. The future research direction should be more inclined to the dynamic response process, seismic mechanism and seismic design theory of the whole anchorage system, so as to better serve the engineering.