岩土工程学报2012,Vol.34Issue(2):251-257,7.
地震作用下边坡抗滑桩振动台试验研究
Shaking table tests on stabilizing piles of slopes under earthquakes
摘要
Abstract
The seismic behaviors of piles retaining the slopes are studied by means of large-scale shaking table tests. The model slope is installed into a model box with a length of 3.7 m, width of 1.5 m and height of 1.8 m. The sizes of model and prototype slope are designed by using the similar principles with a scale factor of 1 : 20. Similar materials are made up of the standard fine sand, gypsum powder, talc powder, glycerin and water, and the specimens are reconstituted with density of 2.5 g/cm3. Three different kinds of seismic waves are input to study the dynamic response stabilizing piles by increasing the amplitude of input seismic waves. By monitoring the soil pressure after the piles, the acceleration and displacement response of the slope, the distribution of the soil pressure behind the piles and the seismic performance of the piles are studied. This research provides a good foundation for seismic design of stabilizing piles.关键词
边坡工程/抗滑桩/地震/振动台试验Key words
slope engineering/stabilizing pile/earthquake/shaking table model test分类
建筑与水利引用本文复制引用
叶海林,郑颖人,李安洪,杜修力..地震作用下边坡抗滑桩振动台试验研究[J].岩土工程学报,2012,34(2):251-257,7.基金项目
科技部973项目(2011CB710603) (2011CB710603)
重庆市自然科学基金项目(2010BC8002) (2010BC8002)