A geogrid reinforced retaining wall packet ecological bag has been design and filled, its acceleration, earth pressure, cumulative deformation and tensile strain of georids under repeated traffic loading with different frequency and amplitude has been tested, the dynamic characteristics and development law of cumulative deformation have been obtained. Research shows that: under the repeated traffic loading, the acceleration response is related to load amplitude, frequency and load times, the maximum is gotten on the wall top, and with retaining wall height reduced it attenuates according to the index model, and the horizontal acceleration attenuates fast then the vertical acceleration; the earth pressure in wall get the maximum at wall top and it attenuates with the wall height decreases too; the deformation of wall and tensile strain increment of geogrids in initial loading is larger, and increase with loading times, both affected by load amplitude significantly, while the influence of frequency is little; vertical cumulative deformation mainly derives from the settlement of wall upper layers; the horizontal cumulative deformation on the top is bigger than that on the bottom in general.
刘泽,史克友,雷勇. 重复荷载作用下土工格栅包生态袋加筋土挡墙动力特性试验研究[J]. 振动与冲击, 2015, 34(9): 88-94.
LIU Ze SHI Ke-you LEI Yong. Test study on the dynamic characteristics of geogrid reinforced earth retaining wall packet ecological bag under repeated loading. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(9): 88-94.
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