• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2015, Vol. 35 ›› Issue (4): 298-302.DOI: 10.3973/j.issn.1672-741X.2015.04.003

• 研究与探索 • 上一篇    下一篇

盾构施工对航油管道的扰动效应

赵方冉, 李春波, 李岳   

  1. (中国民航大学机场学院, 天津 300300)
  • 收稿日期:2014-12-16 修回日期:2015-02-08 出版日期:2015-04-20 发布日期:2015-04-22
  • 作者简介:赵方冉(1960—),男,山东东平人,1987年毕业于天津大学,土木工程系,结构工程专业,硕士,教授,从事机场工程研究工作。
  • 基金资助:

    中央高校基本科研业务费资助项目(3122013SY35);国家自然科学基金(51408598)

Disturbance Effect of Shield Boring Crossing Underneath Aviation Oil Pipeline

ZHAO Fangran, LI Chunbo, LI Yue   

  1. (Airport College, Civil Aviation University of China, Tianjin 300300, China)
  • Received:2014-12-16 Revised:2015-02-08 Online:2015-04-20 Published:2015-04-22

摘要:

机场飞行区下施工容易造成上覆土体的沉陷,从而引起隧道上部埋置管道的局部下沉,并使管道产生较高的附加应力。通过对下穿盾构施工时所产生的土体下沉位移进行分析,探讨管道不同部位的沉陷分布规律计算模型;应用ABAQUS有限元软件对管道下盾构施工过程进行数值模拟,分别反映施加不同附加荷载情况以及不同管-隧相对位置下埋置管道力学状态改变。理论分析和数值模拟结果表明: 航油管道埋深较浅,管道呈受压状态且受飞机附加荷载影响应力增幅较大;管道与隧道的垂直间距过小,管道呈受拉状态而易引起受拉破坏。以安全评价方法为指标,可确定航油管道的临界埋深与管-隧间距。

关键词: 飞行区, 下穿, 航油管道, 盾构施工, 数值模拟

Abstract:

Shield boring underneath airport area may cause ground settlement, which may, in turn, cause local settlement and high additional stress to the aviation oil pipeline buried in the ground. In this paper, the settlement and displacement of the ground induced by shield boring are analyzed, and the calculation models for the settlement of the aviation oil pipeline at different locations are discussed. The shield boring crossing underneath the aviation oil pipeline is numerically simulated by means of ABAQUS finite element software, and the mechanical behavior of the aviation oil pipeline under different additional loads and different distances between aviation oil pipeline and shield tunnel are studied. The theoretical analysis and numerical simulation results show that: 1) Due to the shallow cover depth, the aviation oil pipeline is under loading pressure, and the stress on the aviation oil pipeline increases dramatically under the action of the airplane load. 2) The aviation oil pipeline will be destroyed when the distance between the aviation oil pipeline and the shield tunnel is too small. The critical cover depth of the aviation oil pipeline and the critical distance between the aviation oil pipeline and the shield tunnel can be determined by means of safety assessment method.

Key words: shield boring under airport area, aviation oil pipeline, numerical simulation

中图分类号: