安全与环境工程2026，Vol.33Issue(1)：114-123,10.DOI:10.13578/j.cnki.issn.1671-1556.20250003
基于改进变形协调方程的桩锚结构内力计算与工程应用
Internal force calculation and engineering application of pile-anchor structure based on improved deformation compatibility equation
摘要
Abstract
The deformation compatibility equation plays a crucial role in the internal force calculation of pile-anchor structures.However,the existing deformation compatibility equation for pile-anchor structures simplifies the relationship between the horizontal displacement at the anchor point of the pile and the deformation of the anchor cable,which leads to significant errors in the calculated internal forces of the pile when the incident angle of the anchor cable is large.To address these limitations,improvements were made to the deformation compatibility equation in two aspects.First,the length of the free section of the anchor cable was incorporated to establish the geometric relationship of the deformation of the pile-anchor structure,thereby enhancing the deformation compatibility condition of the pile-anchor system.Secondly,during the derivation of the deformation compatibility equation,the calculation method of the displacement contribution value of the j-row anchor cable of the anti-slide pile to the i-row anchor cable is improved.A program for calculating the internal forces of pile-anchor structures was developed using Matlab software.The internal forces of the pile-anchor structure were computed using both the existing method and the improved method,and the results were compared with numerical simulations.The findings indicate that the calculation results obtained using the improved method exhibit greater consistency with the numerical simulation results,with relative errors in shear force and bending moment of the pile body both being less than 0.3%,which validates the feasibility and rationality of the improved deformation compatibility equation for pile-anchor structures.This research can provide theoretical calculation basis for the design of pile-anchor support systems.关键词
边坡开挖/桩锚支护/变形协调/内力计算/数值分析Key words
excavation of the slope/pile-anchor support/deformation compatibility/calculation of internal force/numerical analysis分类
资源环境引用本文复制引用
万翼,阳浦江,张秀丽,冷先伦,王成汤..基于改进变形协调方程的桩锚结构内力计算与工程应用[J].安全与环境工程,2026,33(1):114-123,10.基金项目
国家自然科学基金项目(42207222、52379110) （42207222、52379110）
