弹性地基梁理论在锚索抗滑桩计算中的应用

针对目前锚索抗滑桩的内力计算通常未考虑滑面以上桩身与岩土体的相互作用关系,而将滑面以上桩身按一般静力结构或有限次超静定结构计算的现状。本文根据弹性地基梁理论,考虑锚索与桩的变形协调,将初参数法运用到锚索抗滑桩的计算中,通过选取合理的初参数作为未知量,得到了锚索拉力以及桩身内力的计算过程。并结合皖南地区某处产生滑移弯曲变形的顺层滑坡治理工程进行了分析,与传统方法计算结果相比,本方法所得内力值较大,偏于安全,桩身内力分布规律与传统方法所得结果较吻合。

APPLICATION OF ELASTIC FOUNDATION BEAM THEORY TO CALCULATION OF ANCHOR CABLE ANTI-SLIDE PILE

The calculation of anchor cable anti slide pile has not considered the interaction between the pile and the landside by the traditional methods. It only considers the pile above the slide surface as static structure or finite statically indeterminate structure. Based on elastic foundation beam theory and considering deformation compatibility of the anchor cable and pile,this paper applies the initial parameter method to the calculation of anchor cable anti slide pile. By selecting reasonable initial parameters as the unknown variable,this paper has deduced the calculation steps of the pile,including the tension force of anchor cable and internal forces of the pile. Applying this method to the treatment of bedding landslide controlling engineering in one project and comparing with the traditional method,this new method is shown to be safer and agrees well with the results using the traditional method．