摘要
以类矩形地铁盾构隧道管片优化后的纵向接缝为研究对象,对其受力性能进行试验研究,得到优化后纵缝破坏链和各阶段的转角刚度,与优化前的研究结果对比,发现优化后接缝承载力有所提高,并对螺栓位置和螺栓强度对接缝的压弯强度的影响进行探讨。
Full-scale experiments were conducted to investigate the mechanical performance of the optimizedquasi-rectangular longitudinal joints. The failure chain of segment joints and the rotation angle stiffness of eachstage were obtained. According to the contrastive analysis, the bearing capacity of the joint was improved afteroptimization. The influence on bending strength of the bolt position and bolt strength were discussed.
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2017年第6期1280-1288,共9页
Journal of Railway Science and Engineering
基金
国家自然科学基金资助项目(51578409)
关键词
类矩形盾构
纵向接缝
优化
受力性能
对比研究
quasi-rectangular
shield tunnel
longitudinal joint
optimization
mechanical performance
comparative study
