Results 71 to 80 of about 1,493 (263)
Study on the Excavation Method of Cable Tunnel on Existing Subway Tunnel
DEStech Transactions on Computer Science and Engineering, 2017 The paper describes the impact on the existing subway tunnel when using different method excavate the cable tunnel which is upon the subway tunnel. In this paper we use three-dimensional finite element modeling method to establish Soil - Cable Tunnel - Subway Tunnel model. Using numerical simulation method to analysis three different excavation working
YUZHUO JIA, JING YU
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu +4 more
wiley +1 more source
Subway Tunnel Structural Deformation Monitoring Method Based on Machine Vision Measurement
Chengshi guidao jiaotong yanjiu[Objective] Tunnel deformation is related to the health of the tunnel structure, and accurate monitoring of tunnel deformation is very important for tunnel safety.
BAI Wenfeng +5 more
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Seismic responses of rectangular subway tunnels in a clayey ground
PLOS ONE, 2018 Observations from past earthquakes have shown that subway tunnels can suffer severe damage or excessive deformation due to seismic shaking. This study presents the results of finite element analyses on subway tunnels installed in normally consolidated clay deposits subjected to far-field ground motions.
Lei Zhang, Yong Liu
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Image-Processing-Based Subway Tunnel Crack Detection System. [PDF]
Sensors (Basel), 2023 Liu X, Hong Z, Shi W, Guo X.
europepmc +1 more source
Carbon emission assessment of tunnel infrastructures: From construction to operation
Deep Underground Science and Engineering, EarlyView.This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
E3S Web of Conferences, 2018 In the extra-large cross-section urban subway underground station projects, the key problem is to choose the appropriate excavation method and grasp the mechanical behavior of the surrounding rock after excavation.
Wu Bo, Huang Wei, Zhao Yong Bo
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Fault Diagnosis and Maintenance Countermeasures of Transverse Drainage Pipe in Subway Tunnel Based on Fault Tree Analysis. [PDF]
Int J Environ Res Public Health, 2022 Liu S, Zhang X.
europepmc +1 more source
Deep Underground Science and Engineering, EarlyView.For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley +1 more source
Investigation on tunnel stability considering pipe‐roof support with transparent soil technology
Deep Underground Science and Engineering, EarlyView.This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia +4 more
wiley +1 more source