Distress Detection in Subway Tunnel Images via Data Augmentation Based on Selective Image Cropping and Patching [PDF]
Sensors, 2022 Distresses, such as cracks, directly reflect the structural integrity of subway tunnels. Therefore, the detection of subway tunnel distress is an essential task in tunnel structure maintenance.
Keisuke Maeda +5 more
doaj +3 more sources
Field Measurement and Evaluation of Effective Ventilation of Air Shafts in Subway Tunnel [PDF]
E3S Web of Conferences, 2022 The ventilation performance of air shaft is important to the air quality of subway tunnel, but there lacks of unified evaluation index of ventilation performance.
Qu Haibo, Zang Jianbin, Wu Yan
doaj +2 more sources
Long term settlement of twin subway tunnels induced by train loads under passenger flow variation [PDF]
Scientific ReportsSubway operations generate loads that can cause uneven soil settlement around tunnels, impacting the safety of subway train operations. Existing research often simplifies the analysis of subway loads and modeling, which does not accurately reflect the ...
Chunling Yan +4 more
doaj +2 more sources
Artificial intelligence-assisted method of structural health monitoring of subway shield tunnel based on insulation degradation location. [PDF]
PLoS ONEStray current leakages inevitably arise to seriously threaten the reliability of the subway tunnel structure and third-party system through electrochemical corrosion.
Yiwei Zhao, Chengtao Wang, Yi Tao
doaj +2 more sources
Image-Processing-Based Subway Tunnel Crack Detection System [PDF]
Sensors, 2023 Xiaodan Guo
exaly +2 more sources
Method for identifying the locations of longitudinal seams based on LiDAR data detected inside shield tunnel [PDF]
MethodsXAfter extracting the longitudinal seam (LS) LiDAR detected data inside shield tunnel, although most can be obtained, some are obscured by tunnel objects and scanning limitations .
Yu-Lin Chen +2 more
doaj +2 more sources
Automatic Crack Detection and Classification Method for Subway Tunnel Safety Monitoring [PDF]
Sensors, 2014 Wenyu Zhang +2 more
exaly +2 more sources
Research on Lateral Deformation Control Criteria of Metro Shield Tunnels with Excessive Ellipticity
Applied Sciences, 2023 In recent years, excessive lateral deformation of subway shield tunnels has been observed due to adjacent engineering activities. This study examines the monitoring of excessive lateral deformation of the shield tunnel and the special steel plate ...
Shaode Kan +4 more
doaj +1 more source
Deformations of Subway Tunnels Induced by the Overcrossing Jacked Box Tunnels [PDF]
Symmetry, 2021 The rectangular utility tunnels have been increasingly built in urban areas in recent decades. In this paper, a case of jacked box tunnels built closely over-crossing the existing subway tunnels in Suzhou, China, is presented. The tunneling-induced deformation of the subway tunnels is measured and analyzed.
Wei Liu +4 more
openaire +2 more sources
Mathematics, 2023 Extra care should be taken when new tunnels pass through an existing tunnel. If it is not handled properly, this will affect the operation safety of the existing line, and bring security risks to the train’s operation.
Linhai Zeng +4 more
doaj +1 more source