Shaking table test studies and numerical analysis of double-row anti-slide piles under earthquake

Shaking table test and numerical analysis were adopted to explore the seismic response and failure mechanism of a slope with double-row anti-slide piles. The results show that due to lack of necessary support on the slope crest, crack appears on the slope crest firstly and develops downwards along the weakness interlayer, and then changes its way to get across the top of piles; acceleration response of monitoring points can reflect the physical conditions of the slope, and when crack appears or the slope gets close to destruction, the former rules of acceleration response would change suddenly. The amplitudes of earthquake have great influences on the dynamic stress distribution of piles, when the earthquake intensity is high and the slope is on the verge of destruction, the majority of landslide thrust is resisted by the upper part of piles, so the upper part of piles is also very important in the seismic design.