ISSN 2096-4498

   CN 44-1745/U

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Tunnel Construction >

2021 , Vol. 41 >Issue 5: 814 - 821

DOI: https://doi.org/10.3973/j.issn.2096-4498.2021.05.015

Assembled Technology of Top Air Duct of a Metro Station:a Case Study on Phase 1 Project of Beijing Metro Line No. 19

  • SU Liyong ,
  • LU Qingquan ,
  • ZHANG Zhiwei ,
  • XU Yang ,
  • REN Yuhong ,
  • ZHOU Yi
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  • (1. Beijing Urban Rapid Transit Construction Administration Corp., Beijing 100027, China; 2. Beijing Metro Construction Administration Corporation Ltd., Beijing 100068, China; 3. Beijing Key Laboratory of Fully Automatic Operation and Safety Monitoring for Urban Rail Transit, Beijing 100068, China; 4. Ranken Railway Construction Group Co., Ltd., Chengdu 610046, Sichuan, China)

Online published: 2021-05-29

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Abstract

Field casting of air ducts on the top of rails has many challenges, including multiple construction procedures, complex environment, and the difficult control of construction quality. In this study, two techniques for assembled air ducts on the top of the rails of metro stations constructed by different methods are developed, taking a typical doublecolumn islandtype metro station of the Phase 1 project of Beijing metro line No. 19 as a case study. The technical points and force analysis of each scheme are discussed in detail and compared with the traditional ones. The results show that the proposed technical schemes are reliable and construction techniques are rational. They could remarkably reduce onsite environmental pollution and speed up the construction progress. Cost advantage is prominent, especially when the number of stations reaches eight.

Key words： doublecolumn islandtype metro station; air duct at rail top; assembled technology; quality control

Cite this article

SU Liyong , LU Qingquan , ZHANG Zhiwei , XU Yang , REN Yuhong , ZHOU Yi . Assembled Technology of Top Air Duct of a Metro Station:a Case Study on Phase 1 Project of Beijing Metro Line No. 19[J]. Tunnel Construction, 2021 , 41(5) : 814 -821 . DOI: 10.3973/j.issn.2096-4498.2021.05.015

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