Structural Analysis of Underground Space Construction: 2nd Edition

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Structures".

Deadline for manuscript submissions: 10 February 2026 | Viewed by 75

Special Issue Editors


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Guest Editor
Department of Tunnel and Underground Engineering, Southwest Jiaotong University, Chengdu 611756, China
Interests: supporting structures of tunnels; failure analysis of supporting structures; numerical simulations of supporting systems; development of new supporting structures; supporting system design of tunnels under complex conditions
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Guest Editor
Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
Interests: tunnel support; structure analysis; tunnel failure analysis
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Guest Editor
Faculty of Engineering and Architecture, Ghent University, 9000 Gent, Belgium
Interests: segment lining design; segment stress and deformation analysis; metal abrasion in tunnelling; soil conditioning; surface tension
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Guest Editor
School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Interests: construction solid waste utilization; tunnel support; concrete structures
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Special Issue Information

Dear Colleagues,

This Special Issue is a follow-up of the first Special Issue, entitled “Structural Analysis of Underground Space Construction” (https://www.mdpi.com/journal/buildings/special_issues/UM0HZ314EF) published in Buildings.

We are pleased to invite you to submit a manuscript to our Special Issue of Buildings. As an important part of underground engineering development, supporting structures are of great significance for the safety, function, and esthetics of underground structures, and this Special Issue focuses on providing a platform for the design, monitoring, simulation, and analysis of underground structures. The topics of interest cover the design and analysis of underground engineering structures in the fields of transportation, mining, water conservancy, and hydropower, including theoretical analysis, model and field tests, numerical simulation, etc. High-quality case studies and critical literature reviews are also welcome.

Prof. Dr. Yong Fang
Dr. Zhigang Yao
Dr. Zhongtian Chen
Dr. Zhen Wei
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Buildings is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • underground structure
  • structure failure analysis
  • interaction between supporting structure and surrounding rocks
  • supporting structure performance evaluation and prediction
  • effect of dynamic perturbation on supporting structure
  • development of new supporting structures
  • blasting impact on tunnel lining and tunnel environment
  • formation stability analysis and control measures

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Published Papers (1 paper)

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Research

17 pages, 5563 KiB  
Article
Optimization of Ventilation Performance in Large-Section Highway Tunnels: The Role of Deflector Shields in Jet Fan Systems
by Kai Wang and Kai Cao
Buildings 2025, 15(16), 2859; https://doi.org/10.3390/buildings15162859 - 13 Aug 2025
Abstract
The jet fan system is a widely adopted form of longitudinal ventilation due to its cost-effectiveness, operational flexibility, and high reliability. However, in large-section highway tunnels with a low height-to-span ratio, the limited clearance between the tunnel ceiling and surrounding structural boundaries imposes [...] Read more.
The jet fan system is a widely adopted form of longitudinal ventilation due to its cost-effectiveness, operational flexibility, and high reliability. However, in large-section highway tunnels with a low height-to-span ratio, the limited clearance between the tunnel ceiling and surrounding structural boundaries imposes significant constraints on improving ventilation performance by adjusting the installation height or pitch angle of the jet fan. To address this limitation, this study proposes a deflector shield system to enhance the aerodynamic efficiency of jet fans. A total of thirteen test cases, including a control group, three deflector plate quantities, and four deflector pitch angles, were tested in a full-scale field test conducted in a large-section tunnel. The objective of this study was to evaluate the influence of the number and pitch angle of deflector plates on tunnel ventilation efficiency and to identify the optimal parameter combination for application in large-section tunnels. The results show that static pressure along the tunnel initially rises with distance from the fan, peaks, and then declines sharply. The pressure rise coefficient is significantly enhanced under several configurations, particularly with four deflector plates at 8° and 10° pitches, and with five plates at 4° to 10° pitches. When the number of deflector plates is five, a sharp drop in average wind speed is observed 15 m downstream of the fan, and extensive low-velocity regions appear further downstream. In contrast, the configurations with four deflector plates at 8° and 10° exhibit better wind speed uniformity in the downstream flow field. Considering both the pressure rise coefficient and wind speed uniformity, the optimal ventilation performance of the jet fan system is achieved with four deflector plates at a pitch angle of 8°. Full article
(This article belongs to the Special Issue Structural Analysis of Underground Space Construction: 2nd Edition)
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