【摘要】 通过数值分析软件FLAC3D对坡体布置桩顶有、无连梁品字型抗滑桩进行数值模拟,研究桩排距、桩群中心距对桩顶位移的影响并对有连梁时的桩排距和桩群中心距进行优化设计。研究结果表明:有连梁时的桩顶位移明显比无连梁时的位移小很多。排距小于6m时,随着桩排距的不断增大,抗滑桩桩顶位移不断减小;排距大于6m时,桩顶位移趋于平缓。合理桩排距宜为6~7m。随着桩群中心距的增大,桩顶位移呈现先增大后平稳再增大最后平稳的规律,桩群中心距宜为9m。更多还原

【Abstract】 Through the numerical analysis and software FLAC3D,we analyzed numerical simulation and layout of the triangle antislide piles with or without coupling beams on the pile top on the slide slope.By numerical simulation,we researched the influence of row distance and the center distance of piles group on pile top displacement.Then the row distance and center distance of piles group are optimized design when the piles with coupling beams on the pile top.The research results show that pile top displacement of pile top with coupling beams is much smaller than without coupling beams.When the row distance is less than 6m,with the increase of row distance,the anti slide piles displacement decreases;when the row distance is greater than 6m,the displacement of pile top tends to be gentle,thus he reasonable pile row distance should be 6~7m.With the increase of the center distance of piles group,the displacement of pile top increases firstly,then becomes smooth,increases,and finally turns smooth.The center distance of pile group is 9m.The research result is of great significance to the design of triangle anti slide piles.更多还原