ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2015, Vol. 35 ›› Issue (9): 957-961.DOI: 10.3973/j.issn.1672-741X.2015.09.016
• 施工机械 • 上一篇 下一篇
韩伟锋, 陈馈, 张兵
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基金资助:
国家重点基础研究发展计划(973)资助项目(2014CB046906); 郑州市重大科技专项(141PZDZX005)
HAN Weifeng, CHEN Kui, ZHANG Bing
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摘要:
在复杂地层条件下,由于掘进载荷不稳定,盾构刀盘受力不均、震动变形及刀具非正常损坏等是盾构施工中较为突出的问题。以工程现场刀盘与地层相关参数为基础,采用有限元方法,在不稳定载荷条件下对盾构刀盘受力特性进行分析,得出盾构在该地层不稳定载荷条件下掘进过程中刀盘应力、应变状态,可确保刀盘设计的可靠性。
关键词: 盾构, 刀盘, 突变荷载, 有限元分析, 应力应变
Abstract:
Due to the unstable loading conditions in complex geological environment, shield boring may face such problems as uneven pressure on the cutterhead, vibration and deformation of cutterhead and abnormal damage of cutting tools. In the paper, the stress and strain conditions of the cutterhead under unstable loading conditions are analyzed by means of finite element method and on basis of the actual parameters of the cutterhead and strata in the site. In the end, the stressstrain conditions of the cutterhead of the shield under the unstable loading conditions in the mentioned strata are obtained and the reliability of the cutterhead design is ensured.
Key words: shield, cutter head, abruptchanging loading, finite element analysis, stressstrain
中图分类号:
U 455.3
韩伟锋, 陈馈, 张兵. 突变载荷下盾构刀盘设计验证分析[J]. 隧道建设, 2015, 35(9): 957-961.
HAN Weifeng, CHEN Kui, ZHANG Bing. Verification Analysis on Design of Shield Cutterhead under Abruptchanging Loading Conditions[J]. Tunnel Construction, 2015, 35(9): 957-961.
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