东南大学学报（英文版）2021，Vol.37Issue(2)：199-208,10.DOI:10.3969/j.issn.1003-7985.2021.02.010
基于最优组合模型预测锚杆极限抗拔承载力的方法
Prediction of a maximum pull-out load of anchor bolts using an optimal combination model
摘要
Abstract
The mixed model of improved exponential and power function and unequal interval gray GM (1,1) model have poor accuracy in predicting the maximum pull-out load of anchor bolts.An optimal combination model was derived using the optimally weighted combination theory and the minimum sum of logarithmic squared errors as the objective function.Two typical anchor bolt pull-out engineering cases were selected to compare the performance of the proposed model with those of existing ones.Results showed that the optimal combination model was suitable not only for the slow P-s curve but also for the steep P-s curve.Its accuracy and stable reliability,as well as its prediction capability classification,were better than those of the other prediction models.Therefore,the optimal combination model is an effective processing method for predicting the maximum pull-out load of anchor bolts according to measured data.关键词
锚杆/最大抗拔荷载/改进指-幂混合模型/不等间距灰色GM(1,1)模型/组合预测模型Key words
anchor bolt/maximum pull-out load/mixed model of improved exponential and power function(MIEPF)model/unequal interval gray GM (1,1) model/optimal combination model分类
建筑与水利引用本文复制引用
马文杰,王炳龙,王旭,王博林..基于最优组合模型预测锚杆极限抗拔承载力的方法[J].东南大学学报（英文版）,2021,37(2):199-208,10.基金项目
The National Natural Science Foundation of China(No.51778485). （No.51778485）
