For the high embankment filled with sericite flake rock-soil-rock mixture,there are usually problems such as serious deformation of embankment under earthquake action,and reinforcement is u-sually used to solve such problems.Based on the Shiwubei Expressway project,the seismic dynamic response of high embankment filled with sericite rock-soil mixture was analyzed.The research shows that the geogrid has the function of sharing part of the stress,reducing the dynamic acceleration of the embankment and restraining its deformation.For the embankment as a whole,the maximum stress of the reinforced embankment is smaller than that of the unreinforced embankment.Compared with the unreinforced embankment,the acceleration and velocity of the reinforced embankment are significantly reduced.At the same height of the embankment,the horizontal peak acceleration and velocity of the geogrid reinforced embankment are smaller than those of the unreinforced embankment.Geogrid rein-forcement has an inhibitory effect on the longitudinal settlement and lateral displacement of the whole embankment,significantly reducing the damage degree of the embankment under earthquake action.
关键词
高填方路堤/土工格栅/地震作用/绢云母片岩/数值模拟
Key words
high fill embankment/geogrid/earthquake action/sericite schist/numerical simulation
维普
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