Abstract：Double-row anti-slide piles are usually used to reinforce large-scale landslides, and the cantilever-type are popular by engineers for the convenience in construction. The key step of design is to determine the landslide thrust acting on the front and back row piles. However, the research showed that the landslide thrust on the back-row piles is greater than that on the front-row piles. In order to solve the problem, a model test was designed by adjusting the stiffness of front and back row piles. The testing results showed that the pile head displacement and bending moment increased with the loading. The model slope destroyed along the sliding surface under the horizontal load. The development process of double-row piles under the thrust could be divided into three stages. The ultimate resistance of double-row anti-slide piles would not be significantly reduced when the pile spacing of front-row pile increased. By adjusting the stiffness between the front and back row piles, function of the front-row piles was fully motivated, the maximum bending moment between front and rear rows was reduced. The test also showed that there was obvious soil arching effect between piles, which could be divided into three zones, the back-row one, the front-row one and the one between the pile rows. Enlarging the spacing of the front row piles enhanced the soil arching effect between the piles. The distribution of soil pressure as spatial characteristics.
叶金铋 俞 缙 林植超 周先齐 刘士雨 涂兵雄. 变刚度悬臂式双排抗滑桩水平推桩模型试验研究[J]. 土木工程学报, 2019, 52(S1): 193-201.
Ye Jinbi Yu Jin Lin Zhichao Zhou Xianqi Liu Shiyu Tu Bingxiong. Model test of cantilever double-row anti-slide pile using horizontal pushing method. 土木工程学报, 2019, 52(S1): 193-201.
