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首页> 外文期刊>Geomechanics and geoengineering >Application of a new convergence measurement technique for the rehabilitation of old Rossio railway tunnel, Lisbon
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Application of a new convergence measurement technique for the rehabilitation of old Rossio railway tunnel, Lisbon

机译：一种新的收敛测量技术在里斯本老罗西奥铁路隧道修复中的应用

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摘要

This paper is concerned with the stability assessment of Rossio railway tunnel, located in Lisbon metropolitan area, during its rehabilitation phase. Built in the nineteenth century, the 2.6-km long Rossio tunnel was constructed in the old central area of Lisbon for providing goods and services for the users of railway services. On several occasions, the breakdown of tunnel lining together with water inrush has caused total disruption of traffic operations resulting in necessary comprehensive rehabilitation of the tunnel. Almost 50% of the original brick support lining has been replaced by 50-cm thick reinforced concrete arches. In order to monitor the efficacy of both the new and the old support systems, a new special monitoring method was applied, using a perimeter bar extensometer incorporating fibre optics strain sensors together with an automatic convergences data acquisition and processing system for detecting abnormal roof displacements.
机译：本文涉及位于里斯本市区的罗西奥铁路隧道修复阶段的稳定性评估。长达2.6公里的Rossio隧道建于19世纪，建在里斯本的旧中心地区，旨在为铁路服务使用者提供货物和服务。在某些情况下，隧道衬砌的破裂以及涌水导致交通运营的全面中断，从而导致对隧道进行必要的全面修复。 50厘米厚的钢筋混凝土拱门已取代了原始砖支撑衬砌的近50％。为了监视新旧系统的有效性，使用了一种新的特殊监视方法，该方法使用了结合了光纤应变传感器的周线引伸计以及用于检测异常屋顶位移的自动会聚数据采集和处理系统。

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  • 来源
    《Geomechanics and geoengineering》 |2011年第2期|p.109-118|共10页
  • 作者

    V.F. Navarro Torres; C. Dinis da Gama; M.M. Costa e Silva; R.N. Singh; D. Reddish; R. Stace;

  • 作者单位

    CEGEO-CERENA Centre, Technical University of Lisbon, Portugal;

    CEGEO-CERENA Centre, Technical University of Lisbon, Portugal;

    CEGEO-CERENA Centre, Technical University of Lisbon, Portugal;

    Nottingham Centre for Geomechanics, Department of Civil Engineering, Nottingham University, Nottingham, NG7 2RD, UK;

    Nottingham Centre for Geomechanics, Department of Civil Engineering, Nottingham University, Nottingham, NG7 2RD, UK;

    Nottingham Centre for Geomechanics, Department of Civil Engineering, Nottingham University, Nottingham, NG7 2RD, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    tunnel; deformation; convergence; continuous monitoring; new method;

    机译：隧道;形变;收敛;持续监控;新方法;

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