华东交通大学学报2025，Vol.42Issue(6)：58-65,8.
钢板套衬加固隧道管片接头力学行为及损伤发展
Mechanical Behavior and Damage Development of Steel Plate Liner Reinforced Tunnel Segment Joints
摘要
Abstract
To study the reinforcement effect of steel plate thickness and anchor strength on the joint of shield tun-nel,this study used Abaqus finite element software to establish left and right half standard block pipe joint mod-els with an inner diameter of 5.4 m and an outer diameter of 6.0 m.Based on a load structure calculation model,the mechanical properties of subway tunnel segment joints reinforced with steel plates and adhesive were stud-ied.The results show that the mechanical properties of the segment joint after reinforcement are affected by the concrete matrix,steel plate and anchor bolt.The use of 10 mm thick steel plate can increase the stiffness of the joint by 40%.When the thickness of the steel plate is in the range of 20～30 mm,the bending moment of the structure increases with the increase of the external load.When the thickness of the steel plate exceeds 20 mm,the damage mode of the structure does not change much,and the stress of the steel plate is mainly concentrated in the bearing area away from the joint surface.In addition,when the number of anchor bolts is fixed,the in-crease of diameter can effectively improve the cooperative force of segment joints after reinforcement.Due to the limitation of concrete strength in the compression zone,the effectiveness of further increasing the steel plate thickness diminishes,resulting in a decreasing rate of improvement in joint stiffness.The thickness of 10～20 mm steel plate is the best.This study can provide theoretical support for the design of segmental segments reinforced by steel ring lining.关键词
锚栓/钢板套衬/加固隧道/管片接头/力学行为/损伤发展Key words
anchor bolt/steel plate liner/reinforcing the tunnel/segment joint/mechanical behavior/damage development分类
建筑与水利引用本文复制引用
张仕雄,徐松,陈佳,郑凤曲,朱碧堂,黄春强,奉小华,刘阳峰..钢板套衬加固隧道管片接头力学行为及损伤发展[J].华东交通大学学报,2025,42(6):58-65,8.基金项目
国家重点研发计划资助(2023YFC3009400) （2023YFC3009400）
国家自然科学基金重点项目(52238009) （52238009）
江西省重点研发计划项目(20232BBE50014) （20232BBE50014）
江西省交通运输厅重点工程科技项目(2023C0001) （2023C0001）
