土木工程与管理学报2026，Vol.43Issue(1)：25-34,10.DOI:10.13579/j.cnki.2095-0985.2026.20250292
顶管隧道穿越地裂缝的结构性状与防治
Research on the Structural Behavior and Prevention of Pipe Jacking Tunnel Crossing Ground Fissure
摘要
Abstract
To study the influence of ground fissure activity on a pipe jacking tunnel,a three-dimen-sional finite element numerical model was established with the background of an electric power tunnel crossing the f12 ground fissure in Xi'an.The deformation and stress characteristics of the pipe jacking tunnel under ground fissure displacement were analyzed,and the structural countermeasures were dis-cussed.The results show that the tunnel experiences significant abrupt deformation near the fissure,with the inner steel ring occurring obvious stress.When the dislocation is 50 cm,the inner steel ring in some joints of the footwall has reached yield strength,exhibiting a"hinge-like"opening phenome-non.The maximum joint opening angle is at the 6th section in the hanging wall and the 13th section in the footwall.Lining contact pressure and strain show opposite changes in the hanging wall and foot-wall,with a clear void area between the tunnel and surrounding soil near the ground fissure.It is rec-ommended to enhance the longitudinal stiffness of the structure for the pipe jacking tunnel crossing ground fissures,adopt multi-layer waterproofing at joints.The reinforcement measure of secondary lin-ing and Ⅰ-steel can effectively control the joint opening and longitudinal stress of the tunnel.The find-ings provide a scientific guidance for preventing structural damage in pipe jacking tunnels in area with developed ground fissure.关键词
顶管隧道/地裂缝/数值模拟/结构性状/防治对策Key words
pipe jacking tunnel/ground fissure/numerical simulation/structural behavior/counter-measure分类
建筑与水利引用本文复制引用
史龙,黄磊,李亚锋,苟玉轩,陈东平,唐六九,刘飞鹏..顶管隧道穿越地裂缝的结构性状与防治[J].土木工程与管理学报,2026,43(1):25-34,10.基金项目
陕西省重点研发计划(2024SF2-GJHX-72) （2024SF2-GJHX-72）
西北电力设计院有限公司科研项目(HQ-2024-P-TD-004) （HQ-2024-P-TD-004）
