A hybrid boundary method for seismic wave propagation problems in slopes

摘要: Abstract The seismic behavior of a slope site has critical impact on its stability and the response structures located or near slope. In this paper, hybrid boundary method(HBM) is proposed for analysis slopes. Viscous viscous-spring boundaries are applied in HBM equivalent loads calculated separately bottom lateral boundary. A horizontally extended model used to verify HBM. results show that maximum error only 2.010%. On ground surface site, amplification occurs at crest side de-amplification toe under various cases. ratio minimum PGA could exceed 2. Therefore, great attention should be paid spatial variability motion sites. also compared with four conventional approaches. errors all approaches 70%. These examples demonstrate much higher accuracy practice than