基于SPH方法注浆纠偏既有盾构隧道研究  

RESEARCH OF EXISTING SHIELD TUNNELS BASED ON SPH METHOD FOR GROUTING AND CORRECTING DEVIATION

作　　者：郑思思 蒋军[1] ZHENG Sisi;JIANG Jun(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学建筑工程学院,杭州310058

出　　处：《低温建筑技术》2022年第7期149-154,共6页Low Temperature Architecture Technology

摘　　要：为研究同时水平和竖向注浆对既有盾构隧道抬升和纠偏的影响,文中基于SPH(smoothed particle hydrodynamics)方法,建立考虑流固耦合的三维模型。分析不同竖向注浆压力与不同水平注浆压力下,既有盾构隧道的竖向位移、竖向收敛、水平位移、水平收敛的变化情况。同时对周围土体位移进行分析,以期为类似工程注浆方案提供优化建议。To study the effect of simultaneous horizontal and vertical grouting on the uplift and deviation correction of existing shield tunnels,a three-dimensional model considering fluid-structure interaction is established based on the SPH method.The changes of the vertical displacement,vertical convergence,horizontal displacement,and hori⁃zontal convergence of the existing shield tunnel under different vertical grouting pressure and different horizontal grouting pressure are analyzed.The surrounding soil displacement is analyzed to provide optimization suggestions for grouting schemes of similar projects.

关 键 词：既有盾构隧道 注浆纠偏 SPH方法 三维数值分析 

分 类 号：TU473.2[建筑科学—结构工程]