岩土工程学报2026，Vol.48Issue(4)：673-686,14.DOI:10.11779/CJGE20250046
基于耦合渗流分析的CEL方法研究盾构隧道涌水涌砂灾害机理及控制措施
Mechanism and control countermeasures of water and sand inrush in shield tunnel based on CEL method integrating seepage analysis
摘要
Abstract
Water and sand inrush disasters of shield tunnel in silty(fine)sand aquifer frequently occur.A Coupled Eulerian-Lagrangian(CEL)method incorporating seepage analysis,referred to as the S-CEL method is proposed to simulate the interaction between water,soil,and shield tunnel during the disaster.First,two leakage experiments are used to validate the proposed method.Subsequently,the S-CEL method is utilized to simulate the water and sand inrush process in an accident.The method is further validated by the measured data.The sequence of leakage point evolution at segment joints,as well as the soil loss mechanism and tunnel structural response mechanism associated with the evolution of leakage joints is revealed.The study shows that leakage joints progressively evolved along the longitudinal direction of the tunnel.The soil loss mass rapidly escalates,resulting in the formation of erosion void at clay-silt layer interfaces,and causing severe differential settlement,segment dislocation,and concrete damage of tunnel.Finally,the disaster rescue measures are investigated.It is suggested that after the disaster occurs,dewatering measures and temporary reinforcement measures for the tunnel should be taken as soon as possible,which can effectively delay the occurrence of subsequent leakage joints.关键词
盾构隧道/涌水涌砂/S-CEL方法/漏点演生/土体流失/管片损伤Key words
shield tunnel/water and soil inrush/S-CEL method/generation of leakage joints/soil loss/segmental damage分类
交通工程引用本文复制引用
郑刚,邱惠敏,张天奇,陈至通,刘梦韶..基于耦合渗流分析的CEL方法研究盾构隧道涌水涌砂灾害机理及控制措施[J].岩土工程学报,2026,48(4):673-686,14.基金项目
国家自然科学基金项目(52478408,52421005)This work was supported by Key Program of National Natural Science Foundation of China(Grant Nos.52478408,52421005). （52478408,52421005）
