东南大学学报（英文版）2025，Vol.41Issue(4)：473-482,10.DOI:10.3969/j.issn.1003-7985.2025.04.009
南通粉砂螺旋锚上拔承载力计算方法优化
Optimization of the method for calculating the uplift bearing capacity of helical anchors in Nantong silt strata
摘要
Abstract
A numerical simulation approach was adopted to investigate the uplift bearing characteristics of helical an-chors in Nantong silty sand and to predict their uplift bear-ing capacity.Finite element model validation was per-formed,and the uplift bearing mechanism of helical anchors was analyzed.The current code's uplift bearing capacity calculation formula was optimized,and the accuracy and re-liability of the modified formula were evaluated.The results indicate that the critical embedment depth ratio of the anchor plate in Nantong silty sand is 5,and the critical spacing ra-tio ranges from 3 to 4.The current code's formula underes-timates the uplift bearing capacity of helical anchors under these conditions.To improve the prediction accuracy,the optimization coefficients M and L,which account for the embedment depth ratio of the anchor plate,are introduced,and fitting formulas for these coefficients are provided to im-prove the prediction of uplift bearing capacity in Nantong silty sand and to serve as a reference for similar engineering applications.关键词
粉砂地层/螺旋锚/上拔承载特性/有限元分析/公式优化Key words
silty sand/helical anchors/uplift bearing char-acteristics/finite element analysis/formula optimization分类
建筑与水利引用本文复制引用
邓温妮,宫发祥,王小龙,赵学亮,沈侃敏..南通粉砂螺旋锚上拔承载力计算方法优化[J].东南大学学报（英文版）,2025,41(4):473-482,10.基金项目
The National Natural Science Foundation of China(No.52378329). （No.52378329）
