ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2016, Vol. 36 ›› Issue (5): 544-548.DOI: 10.3973/j.issn.1672-741X.2016.05.008
• 研究与探索 • 上一篇 下一篇
高涛1, 赵芮2
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作者简介:
GAO Tao1, ZHAO Rui2
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摘要:
盾构井在盾构吊装期间,侧向压力主要由临时环梁承担,开孔周边受力情况较为复杂。本文通过对地铁车站盾构井处临时环梁进行三维建模计算,并与传统二维计算结果进行对比,得出如下结论: 1)二维计算存在局部弯矩过大及配筋过于保守等缺点,有一定的优化余地; 2)相对于二维计算,三维整体建模计算结果更加合理,得出的结构尺寸及配筋结果对于类似工程具有一定的参考意义。
关键词: 地铁车站, 盾构井, 临时环梁, SAP2000, 有限元, 三维整体计算, 二维计算
Abstract:
During the shield hoisting, the lateral pressure is mainly borne by the temporary ring beam; meanwhile, the stresses of surrounding soil are complicated. A threedimensional model of temporary ring beam is built and calculated. The calculation results are compared with conventional twodimensional model. Some conclusions are drawn as follows: 1) Twodimensional calculation has some disadvantages, such as too large bending moment and overconservative reinforcement, etc. 2) Compared with twodimensional calculation, threedimensional modeling calculation results are more rational. The study results can provide references for similar projects in the future.
Key words: Metro station, shield hoisting shaft, temporary ring beam, SAP2000, finite elements, threedimensional integral calculation, twodimensional calculation
中图分类号:
U 451
高涛, 赵芮. 地铁车站盾构井处临时环梁计算优化分析[J]. 隧道建设, 2016, 36(5): 544-548.
GAO Tao, ZHAO Rui. Optimization Analysis of Calculation of Temporary Ring Beam for Shield Hoisting Shaft of Metro Station[J]. Tunnel Construction, 2016, 36(5): 544-548.
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