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Abstract A slope model with the geometric scale of 1∶8 was designed and a large-scale shaking table model test was performed to study the seismic displacement mode of anchor lattice frame structure and its characteristics under Wenchuan earthquake loading with three excitation directions including X，Z，and XZ direction respectively. The results show that：(1) Under X direction excitation，the seismic displacement mode of the proposed retaining structure is the translation from filling soil mass at the peak exciting acceleration AXmax≤0.4 g，the rotation inward or lower slope about the lower of retaining structure at AXmax = 0.6 g，and the coupling of the translation to filling soil mass and the rotation inward about the lower of retaining structure at AXmax≥0.8 g. (2) Under Z direction excitation，the seismic displacement mode of the proposed retaining structure is the coupling of the translation from filling soil mass and the rotation inward about the lower of retaining structure at AZmax≤0.267 g，the coupling of the translation to filling soil mass and the rotation inward about the lower of retaining structure at AZmax≥0.400 g. (3) Under XZ direction excitation，the seismic displacement mode of the proposed retaining structure is the coupling of the translation from filling soil mass and the rotation inward about the lower of retaining structure.
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Received: 18 May 2011
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2011, Vol. 30 
