Abandoned mine pits around city are gradually used forthe construction of large public service projects with the basis locating on slopes，which is causing new problem. A large-scale shaking table test was carried out to study the dynamic characteristics and response of pit slope，single and multi-span frame structures，and interaction between slope and structures. The results show that，with the increase of vibration time and amplitude，the self-vibration frequency of slope model tends to decreases，while the damping ratiotends to increase. The structure models are in elastic stageduring the vibration process，and its self-vibration frequency decreases slightly，while the damping ratio increases slightly. Slope dynamic response increases with slope position rising. Due toslope material nonlinear characteristics，slope dynamic amplification effect decreases with the increase of vibration amplitude. Moreover，model dynamic response is associated with the type and direction of wave excitation. Low-frequency waves have greater influence on slope than high-frequency waves，and dynamic response in excitation direction is stronger than that in other directions. Dynamic response of structures increases with base location rising. Due to the influence of coupling beam，dynamic response of middle part of multi-span structure is stronger than that of other parts. Dynamic response of the structure top，which is coupled by foundation and upper structure，is always larger than the bottom plate. Dynamic response of bottom plate is always greater than around ground due to dynamic reaction of superstructure. In addition，there is notable interaction between slope and structure. Multi-span structures with good stability andhigh stiffness can improve seismic performance of surrounding ground，and ground dynamic response decreases 10.4%–24.3%. In contrast，single-span structureswith poor stability and low stiffness probably reduce seismic performance of surrounding ground，and ground dynamic response increases 12.3%–51.1%.The research results can provide guidance for geotechnical engineering design of development and utilization of existing pit underground space.
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2018, Vol. 37 
