岩土工程学报2026，Vol.48Issue(z2)：1-5,5.DOI:10.11779/CJGE2026S20008
软土中考虑沉井几何效应的地表沉降预测方法
Prediction method for ground surface settlement considering geometric effects of open caissons in soft soil
摘要
Abstract
The application of open caisson structures in urban underground spaces is becoming increasingly widespread.However,existing research on surface settlement are mainly based on fitting field measurement or model test results,and thus have certain limitations.This study utilizes the cylindrical cavity expansion theory to propose a calculation method for the sidewall friction resistance of open caissons.Through numerical simulations,the distribution patterns of surface settlement around circular open caissons are investigated,and corresponding fitting formulas are established.Based on the equivalent sidewall area principle of open caissons,the proportional coefficients for maximum surface settlement of square and rectangular open caissons are obtained.Finally,a comprehensive prediction method for surface settlement around open caissons is developed,and its validity is verified through comparison with field measurement results.关键词
沉井/地表沉降/侧摩阻力/数值分析Key words
open caisson/ground surface settlement/sidewall frictional resistance/numerical analysis分类
建筑与水利引用本文复制引用
张中杰,万宇飞,王啸翔,俞剑,黄茂松,王浩然..软土中考虑沉井几何效应的地表沉降预测方法[J].岩土工程学报,2026,48(z2):1-5,5.基金项目
上海市自然科学基金项目(23ZR1468500) （23ZR1468500）
