[I-453] Experimental study on the seismic retrofitting effect of liquefaction countermeasure for existing bridge abutment foundation by suppressing the lateral spreading
Keywords:existing bridge abutment foundation, liquefaction countermeasure, seismic retrofitting, steel pipe sheet pile wall
The retrofitting effect of liquefaction countermeasure for existing bridges, setting the steel pipe sheet pile wall at the front of the bridge abutment, is investigated by the centrifugal model tests. The experimental results show that the liquefaction-induced lateral spreading can be effectively suppressed by the steel pipe sheet pile wall. Consequently, the lateral displacement and the rotation angle of the bridge abutment as well as the pile bending moment are reduced.
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