Stresses in sprayed concrete tunnel linings at Heathrow Terminal 4

Author:

Jones Benoit D.1,Grand Charly2,Clayton Chris R. I.3

Affiliation:

1. Managing Director, Inbye Engineering Limited, Coventry, UK (corresponding author: )

2. Bauführer, Zengaffinen AG, Steg, Switzerland

3. Emeritus Professor of Infrastructure Engineering, School of Engineering, University of Southampton, Southampton, UK

Abstract

A wide variety of instrumentation was deployed during construction of the sprayed concrete lined tunnels at Heathrow Express Terminal 4 station in the mid-1990s, some of which is still functioning and is accessible for the taking of readings today. This paper presents a nearly 20-year history of stress in the primary lining of the concourse tunnel measured using radial and tangential pressure cells on and in the sprayed concrete. Data from tangential pressure cells require careful interpretation and the new and complete methodology for achieving reliable results described in previous work by the authors was used to provide the stress history from construction into the long term. This is a unique case study in terms of both the detail and interpretation of the measurements and the time period over which measurements have been taken. The results show that pressure cells are very sensitive and respond to changes in stress due to nearby construction activities and also that, after construction has ceased, stresses stabilise at a value well below the full overburden pressure (the vertical total stress at tunnel axis level).

Publisher

Thomas Telford Ltd.

Subject

Earth and Planetary Sciences (miscellaneous),Geotechnical Engineering and Engineering Geology

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Editorial: Geo-environmental loads acting on tunnels;Proceedings of the Institution of Civil Engineers - Geotechnical Engineering;2023-12

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3