Experimental study on ultimate bearing capacity of the stagger-jointed shield tunnel reinforced by steel plate

被引：1
|
作者：
Zhang, Xiaohui [1 ,2 ]
Pei, Zhengchuan [1 ,2 ]
Zhang, Keping [1 ,2 ]
机构：
[1] Tongji Univ, Key Lab Rd & Traff Engn, Minist Educ, Shanghai, Peoples R China
[2] Tongji Univ, Shanghai Key Lab Rail Infrastructure Durabil & Sy, Shanghai, Peoples R China
来源：
PROCEEDINGS OF THE ITA-AITES WORLD TUNNEL CONGRESS 2023, WTC 2023: Expanding Underground-Knowledge and Passion to Make a Positive Impact on the World | 2023年
关键词：
Shield tunnel; Bearing capacity; Structure deformation; Steel plate reinforcement;
D O I：
10.1201/9781003348030-406
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To investigate the ultimate bearing capacity of the stagger-jointed shield tunnel structure reinforced by steel plate in soft soil areas, a full-scale experimental test is carried out on the three rings of the steel plate reinforced shield tunnel. The convergence deformation, structural internal force, and the peeling conditions of the tunnel and the steel plate is obtained. The conclusions are as follows: The peeling between the steel plate and the tunnel segment is the main form of the damage of the reinforced structure, which occurs mainly near the tunnel capping block. When the steel plates at four positions are peeled off, the reinforced tunnel structure enters the yield stage. The research results of this paper provide a reference for the reinforcement of the stagger-jointed shield tunnels in the soft soil areas in the future.
引用
收藏
页码：3351 / 3357
页数：7
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