铁道标准设计2026，Vol.70Issue(6)：154-165,197,13.DOI:10.13238/j.issn.1004-2954.202409030004
超前泄水-注浆耦合效应下富水破碎带隧道掌子面稳定控制
Stability Control of Tunnel Face in Water-Rich Fractured Zone under Coupling Effect of Advanced Drainage and Grouting
摘要
Abstract
[Objective]When a tunnel crosses a water-rich fault fractured zone during construction,it is highly prone to water and mud inrush disasters,which seriously affect the safety of tunnel construction.This study aims to clarify the stability of the tunnel face,the thickness of the anti-inrush body,and the effectiveness of the advanced drainage-grouting reinforcement scheme for the tunnel face during construction.[Methods]Based on the Xigu tunnel of the Shenyang-Baihe high-speed railway,a three-dimensional fluid-solid coupling finite element model was established.Through a three-factor,four-level orthogonal test,a tunnel face stability evaluation system that comprehensively considered mechanical deformation and seepage effects was proposed.[Results](1)The minimum thickness of the anti-inrush body for the tunnel crossing the water-rich fractured zone was determined to be 4 m.(2)The drainage capacity of a single drainage pipe was related to its location:the closer it was to the crown,the worse the drainage capacity.As the number of drainage pipes increased,the total drainage capacity of the pipes increased,and the maximum extrusion displacement of the tunnel face decreased.(3)As the thickness of the grouting ring increased,the extrusion displacement of the tunnel face decreased significantly,and the location of the maximum displacement of the surrounding rock shifted to the outer edge of the grouting ring.(4)The order of influence of the factors on the tunnel face,from most to least significant,was:number of drainage pipes>thickness of the grouting ring>advanced length of drainage pipes.[Conclusion]Compared with taking no reinforcement measures,the use of advanced drainage-grouting reinforcement for the tunnel face can not only effectively control the extrusion displacement of the tunnel face but also reduce the structural deformation and internal forces of the secondary lining in the supported section.The results of the study can provide a reference for the construction of similar tunnel projects.关键词
铁路隧道/富水破碎带/掌子面/超前泄水/注浆/正交试验Key words
railway tunnel/water-rich fractured zone/tunnel face/advanced drainage/grouting/orthogonal test分类
交通工程引用本文复制引用
刘传祥,张康健,张志强,王珣..超前泄水-注浆耦合效应下富水破碎带隧道掌子面稳定控制[J].铁道标准设计,2026,70(6):154-165,197,13.基金项目
国家自然科学基金项目(52378414) （52378414）
