投影寻踪方法在钻孔灌注桩设计方案选择中的应用

Application of projection pursuit clustering model in bore filling pile design

利用投影寻踪方法对钻孔灌注桩的功能和设计参数进行综合评价,从而得出最优设计方案.首先,利用钻孔灌注桩的功能指标和各种成桩工艺参数共同构造综合评价指标.然后,应用投影寻踪的方法确定综合评价系数.最后,根据综合评价系数的大小来评价各方案的综合效果.对3个案例进行了建模计算,计算结果对钻孔灌注桩设计方案的选择具有一定指导意义.

By using of projection pursuit method,optimum design was obtained from the comprehensive evaluation in bored piles of features and design parameters.First,a comprehensive evaluation index was formatted by using the function parameters and various parameters of bored pile.Then,projection pursuit method was used to determine the comprehensive evaluation coefficient.Finally,a comprehensive evaluation was assessed by the combined effect on various programs of the size of the coefficient.In this paper,three modeling calculations cases was carried out,the results of the bored piles program has some guiding significance.