铁道标准设计2016，Vol.60Issue(4)：17-20,4.DOI:10.13238/j.issn.1004-2954.2016.04.005
盾构钢弹簧浮置板轨道结构高度不足的影响分析
Impact Analysis of Insufficient Height of Steel-spring Floating-slab Track Structure in Shield
韩朝霞1
作者信息
- 1. 铁道第三勘察设计院集团有限公司，天津 300251
- 折叠
摘要
Abstract
Influenced by the narrow space of shield and the error in shield construction, insufficient height of steel-spring floating-slab track structure in shield generally occurs during the construction. In order to study the influence on the floating slab stress and vibration isolation effect in this context, the finite element model is established to analyze the commonly used countermeasures. The results show that decreasing the height of slab and reducing the longitudinal spacing between isolators may increase the inherent frequency and reduce the vibration isolation efficiency in low frequency of floating slab especially the height of slab is lowered. Reducing the longitudinal and horizontal spacing between isolators will decrease the tensile stress and pressure stress of slab, while increasing isolator stiffness will increase the stress of slab. In addition, the current commonly used countermeasures may also affect the water drainage under the slab, the floating slab construction and the maintenance.关键词
地铁/钢弹簧浮置板/盾构/轨道结构高度Key words
Subway/Steel-spring floating-slab/Shield/Height of track structure分类
交通工程引用本文复制引用
韩朝霞..盾构钢弹簧浮置板轨道结构高度不足的影响分析[J].铁道标准设计,2016,60(4):17-20,4.
